Electric hammer press fitting fixture and press fitting method

Abstract

The present invention relates to an electric hammer press-fitting jig and a press-fitting method, and is suitable for installing a positioning spring sheet on a swing rod bearing assembly of an electric hammer, wherein the swing rod bearing assembly includes a housing, a support step and a positioning spring sheet; the electric hammer press-fitting jig includes a base, left and right support columns installed on both sides of the base, an upper pressure head assembly and a left pressure head assembly connected to the left support column; the electric hammer press-fitting jig also includes a right pressure head assembly connected to the right support column, and the right pressure head assembly includes a right pressure plate and a limit plate arranged in the upper and lower directions and relatively movable, the limit plate is supported on the lower end of the positioning spring sheet, and the right pressure plate squeezes the positioning spring sheet to move toward the left side and clamp it on the support step. The present invention designs an automated electric hammer press-fitting jig to replace the existing manual screwdriver assembly method, effectively improves the assembly efficiency of the swing rod bearing assembly assembly elastic sheet, ensures assembly quality and is simple to operate, and reduces the labor intensity of employees.

Description

[Technical field]

[0001] The invention relates to an electric hammer press-fitting jig and a press-fitting method, and in particular to an electric hammer press-fitting jig and a press-fitting method for assembling a positioning spring sheet onto a rocker bearing assembly. [Background Technology]

[0002] Electric hammers have the characteristics of hammering and chiseling, and are widely used. Usually, a pendulum bearing is provided inside the electric hammer to realize this characteristic. Since the impact force of the electric hammer is relatively large, if the pendulum of the electric hammer is not positioned properly during use, it will move, affecting the service life of the electric hammer. Therefore, a positioning spring is provided at the rear end of the electric hammer to prevent the movement of the pendulum bearing. At present, in the manufacturing process of the electric hammer, the pendulum bearing assembly is placed on a stabilizing table, and then the operator holds the pendulum bearing assembly with his left hand and holds a flat-blade screwdriver with his right hand to lift the positioning spring to the appropriate position in multiple times. This assembly method is not only inefficient, but also labor-intensive, causing this process to become a bottleneck process affecting the output of electric hammers.

[0003] In view of this, it is indeed necessary to provide an improved electric hammer pressing fixture and pressing method to overcome the defects of the prior art. [Summary of the invention]

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide an electric hammer pressing fixture and a pressing method with simple structure and high assembly efficiency.

[0005] The present invention solves the problems of the prior art by adopting the following technical solutions: an electric hammer pressing fixture, suitable for installing a positioning spring piece on a swing rod bearing assembly of an electric hammer, the swing rod bearing assembly comprising a shell, a supporting step arranged on the shell and a positioning spring piece installed on the supporting step; the electric hammer pressing fixture comprises a base for installing the swing rod bearing assembly, a left supporting column and a right supporting column vertically installed on both sides of the base, an upper pressing head assembly installed on the upper side of the base and a left pressing head assembly connected to the left supporting column, the upper pressing head assembly moves downward to squeeze the shell of the swing rod bearing assembly to move downward; the electric hammer pressing fixture also comprises a right pressing head assembly connected to the right supporting column, the right pressing head assembly comprises a right pressing plate and a limiting plate arranged in the upper and lower directions and relatively moving, the limiting plate is supported at the lower end of the positioning spring piece, and the right pressing plate squeezes the positioning spring piece to move toward the left side and is clamped on the supporting step.

[0006] A further improved solution is: the limiting plate includes an inclined surface that matches the positioning spring piece, and the inclined surface abuts against the lower surface of the positioning spring piece.

[0007] A further improvement scheme is: the right pressure head assembly includes a cylinder assembly located between the right support column and the base and a limit plate pressure head driven by the cylinder assembly, the limit plate pressure head includes an inclined surface abutting against the limit plate, and the cylinder assembly drives the limit plate pressure head to move up and down to drive the limit plate to move left and right.

[0008] A further improved solution is: the left pressure head assembly includes a left pressure plate for pressing the shell and the left end of the positioning spring, and the left pressure plate is movably arranged left and right inside the left pressure head assembly.

[0009] The present invention can also adopt the following technical solution to solve the existing technical problems: a press-fitting method of an electric hammer press-fitting fixture, the press-fitting method includes any of the above-mentioned electric hammer press-fitting fixtures, and includes the following steps:

[0010] Step S1: placing the rocker bearing assembly with the positioning spring on the base;

[0011] Step S2: the limiting plate moves leftward to the lower side of the positioning spring;

[0012] Step S3: the upper pressure head assembly moves downward and presses the housing, and drives the positioning spring piece to move downward, and the limiting plate supports the positioning spring piece to deform the positioning spring piece;

[0013] Step S4: the left pressure head assembly moves to the right to position the shell and the positioning spring sheet; and drives the right pressure plate to move to the left to squeeze the positioning spring sheet to move to the left, so as to clamp the positioning spring sheet on the supporting step.

[0014] Compared with the prior art, the present invention has the following beneficial effects: by designing an automated electric hammer pressing fixture to replace the existing manual screwdriver assembly method, the assembly efficiency of the rocker bearing assembly to the positioning spring piece is effectively improved, the assembly quality is guaranteed, and the operation is simple, reducing the labor intensity of employees. [Drawings]

[0015] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the electric hammer press fixture of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of the middle circle A;

[0018] Figure 3 yes Figure 1 Schematic diagram of the state of the middle and upper pressure head assembly after being pressed down;

[0019] Figure 4 yes Figure 1 Schematic diagram of the state after the middle positioning spring is pressed into place;

[0020] Figure 5 It is a schematic diagram of the position of the pendulum bearing assembly in the electric hammer in the present invention. [Specific implementation method]

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0022] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention relates to an electric hammer pressing fixture 100 and a pressing method, and is suitable for installing a positioning spring on a rocker bearing assembly 2 of an electric hammer, wherein the rocker bearing assembly 2 includes a shell 21, a support step 23 arranged on the shell 21, and a positioning spring 22 installed on the support step 23; the electric hammer pressing fixture 100 includes a base 1 for installing the rocker bearing assembly 2, a left support column 5 and a right support column 6 vertically installed on both sides of the base 1, an upper pressure head assembly 4 installed on the upper side of the base 1, a left pressure head assembly 7 connected to the left support column 5, and a right pressure head assembly 8 connected to the right support column 6, the upper pressure head assembly 4 moves downward to squeeze the shell 21 of the rocker bearing assembly 2 to move downward, and the left pressure head assembly 7 and the right pressure head assembly 8 will also squeeze the rocker bearing assembly 2 under the action of an external driving source.

[0023] In this embodiment, the left pressure head assembly 7 includes a left pressure plate 71 that squeezes the housing 21 and the left end of the positioning spring sheet 22, and the left pressure plate 71 is movably arranged in the left pressure head assembly 7; the right pressure head assembly 8 includes a right pressure plate 82 and a limit plate 81 that are arranged in the up and down directions and relatively movable, the right pressure plate 82 is located on the upper side of the limit plate 81, the limit plate 81 is supported on the lower end of the positioning spring sheet 22, and the right pressure plate 82 squeezes the positioning spring sheet 22 to move to the left and is clamped on the support step 23. By designing an automated electric hammer press fixture 100 to replace the existing manual screwdriver assembly method, the assembly efficiency of the rocker bearing assembly 2 for assembling the positioning spring sheet 22 is effectively improved, the assembly quality is guaranteed, and the operation is simple, reducing the labor intensity of employees.

[0024] Please combine Figure 1 As shown, the above-mentioned right pressure head assembly 8 includes a cylinder assembly 83 located between the right support column 6 and the base 1 and a limit plate pressure head 84 driven by the cylinder assembly 83. The limit plate pressure head 84 includes an inclined surface abutting against the limit plate 81. The cylinder assembly 83 drives the limit plate pressure head 84 to move up and down to drive the limit plate 81 to move left and right.

[0025] In this embodiment, the limiting plate 81 further includes an inclined surface 811 matched with the positioning spring piece 22 , and the inclined surface 811 abuts against the lower surface of the positioning spring piece 22 to meet the assembly requirement that the positioning spring piece 22 needs to be tilted.

[0026] Please combine again Figures 2 to 5 As shown, the press-fitting method of the electric hammer press-fitting fixture 100 of the present invention comprises the following steps:

[0027] Step S1: placing the rocker bearing assembly 2 with the positioning spring 22 on the base 1;

[0028] Step S2: the limiting plate 81 moves leftward to the lower side of the positioning spring piece 22;

[0029] Step S3: the upper pressing head assembly 4 moves downward and presses the housing 21, and drives the positioning spring piece 22 to move downward, and the limiting plate 81 supports the positioning spring piece 22 to deform the positioning spring piece 22;

[0030] Step S4: the left pressure head assembly 7 moves rightward to position the housing 21 and the positioning spring piece 22 ; and drives the right pressure plate 82 to move leftward to squeeze the positioning spring piece 22 to move to the left side, and clamp the positioning spring piece 22 on the supporting step 23 .

[0031] The present invention designs an automated electric hammer press fixture 100 to replace the existing manual screwdriver assembly method, effectively improving the assembly efficiency of the rocker bearing assembly 2 and the positioning spring 22, ensuring the assembly quality, and is simple to operate, reducing the labor intensity of employees.

[0032] The present invention is not limited to the above specific embodiments. A person skilled in the art can easily understand that there are many other alternatives to the electric hammer press fitting fixture and press fitting method of the present invention without departing from the principle and scope of the present invention. The scope of protection of the present invention shall be subject to the contents of the claims.

Claims

1. A press-fitting method of an electric hammer press-fitting jig, which is suitable for installing a positioning spring on a swing rod bearing assembly of an electric hammer, and is characterized in that: The rocker bearing assembly includes a housing, a support step arranged on the housing, and a positioning spring installed on the support step; the electric hammer press fixture includes a base for installing the rocker bearing assembly, a left support column and a right support column vertically installed on both sides of the base, an upper pressure head assembly installed on the upper side of the base, a left pressure head assembly connected to the left support column, and a right pressure head assembly connected to the right support column, the right pressure head assembly includes a right pressure plate and a limit plate arranged in the upper and lower directions and relatively movable, and the press method includes the following steps: Step S1: placing the rocker bearing assembly with the positioning spring on the base; Step S2: the limiting plate moves leftward to the lower side of the positioning spring; Step S3: the upper pressure head assembly moves downward and presses the housing, and drives the positioning spring piece to move downward, and the limiting plate supports the positioning spring piece to deform the positioning spring piece; Step S4: the left pressure head assembly moves to the right to position the shell and the positioning spring sheet; and drives the right pressure plate to move to the left to squeeze the positioning spring sheet to move to the left, so as to clamp the positioning spring sheet on the supporting step.

2. The press-fitting method of the electric hammer press-fitting jig according to claim 1, characterized in that: The limiting plate includes an inclined surface matched with the positioning spring piece, and the inclined surface abuts against the lower surface of the positioning spring piece.

3. The press-fitting method of the electric hammer press-fitting jig according to claim 2, characterized in that: The right pressure head assembly includes a cylinder assembly located between the right support column and the base and a limit plate pressure head driven by the cylinder assembly. The limit plate pressure head includes an inclined surface abutting against the limit plate. The cylinder assembly drives the limit plate pressure head to move up and down to drive the limit plate to move left and right.

4. The press-fitting method of the electric hammer press-fitting jig according to claim 1, characterized in that: The left pressure head assembly includes a left pressure plate for pressing the shell and the left end of the positioning spring, and the left pressure plate is movably arranged left and right in the left pressure head assembly.

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