Special equipment for machining small holes in hollow piston rod of shock absorber

Abstract

The utility model discloses special equipment for machining small holes in a hollow piston rod of a shock absorber. The mounting plate is vertically mounted on the workbench; the motor is connected to the mounting plate and can move up and down relative to the mounting plate; the drill chuck is fixedly connected to a power output shaft of the motor; one end of the drill bit is detachably connected into the drill bit chuck; the drill bushing bracket is fixedly connected to the mounting plate and is positioned below the motor; the drill bushing is mounted on the drill bushing bracket; wherein the other end of the drill bit rotatably penetrates through the drill sleeve and extends to the position below the drill sleeve; and the piston rod positioning tool is mounted on the workbench. According to the special equipment for machining the small hole of the hollow piston rod of the shock absorber, the rigidity of the drill bit can be enhanced, the influence of vibration on drilling is reduced, and the size quality of the machined small hole is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile shock absorbers, and particularly relates to special equipment for processing fine holes of hollow piston rods of shock absorbers. Background Art

[0002] There are currently two common processing methods for small hole processing, namely CNC processing and manual drilling machine processing. Although CNC processing can accurately locate points through program writing, due to the small diameter and low rigidity of the drill bit, the cutting edge of the drill bit is prone to slippage and offset when the tool contacts the workpiece surface, followed by tool breakage, and normal processing cannot be guaranteed. During the drilling process, the drill bit itself is not rigid enough, causing the drill bit to deform, and the size of the exit position after hole processing cannot meet special use requirements. In manual drilling machine processing, due to manual holding, the product size cannot meet the requirements. The above two processing methods have low processing efficiency and very high manufacturing costs. There are many waste products during the processing process, and the process quality cannot be guaranteed, which cannot adapt to mass production.

[0003] In traditional mechanical processing, tiny holes are a technical difficulty in all hole processing, and there are problems such as large quantity and volatile quality. Although CNC processing technology is now relatively mature and the processing difficulty has been greatly reduced, there have always been major problems with processing efficiency and quality stability, which has affected the high manufacturing costs. At present, there is an urgent need to design and develop a processing method with stable quality and low cost for practical application. Utility Model Content

[0004] The utility model aims to provide special equipment for processing small holes in the hollow piston rod of a shock absorber. The equipment has a simple structure, connects a drill chuck through a high-speed motor spindle, and utilizes a processing method of combining a drill with a drill sleeve, thereby ensuring stable and effective transmission of power and preventing the drill from slipping and deviating.

[0005] The technical solution provided by the utility model is:

[0006] A special device for processing small holes in the hollow piston rod of a shock absorber, comprising:

[0007] Main workbench;

[0008] A mounting plate, which is vertically mounted on the workbench;

[0009] A motor connected to the mounting plate and capable of moving up and down relative to the mounting plate;

[0010] A drill chuck, which is fixedly connected to the power output shaft of the motor;

[0011] a drill bit, one end of which is detachably connected in the drill chuck;

[0012] A drill sleeve bracket, which is fixedly connected to the mounting plate and is located below the motor;

[0013] A drill sleeve, which is mounted on a drill sleeve support;

[0014] Wherein, the other end of the drill bit can be rotatably passed through the drill sleeve and extended to below the drill sleeve;

[0015] The piston rod positioning tool is installed on the workbench and is used to fix the piston rod to be processed so that the position of the piston rod to be processed corresponds to the position of the drill bit.

[0016] Preferably, the number of the piston rod positioning fixtures is two; a first guide rail is provided on the workbench, and the two piston rod positioning fixtures are respectively connected to the first guide rail through sliders;

[0017] Wherein, the two piston rod positioning fixtures can be moved alternately to the processing position.

[0018] Preferably, the mounting plate is provided with a second guide rail, and the motor is connected to the second guide rail via a slider.

[0019] Preferably, two balancing plates are arranged on the back of the mounting plate to balance the deadweight of the motor.

[0020] Preferably, the drill sleeve bracket is provided with a rib plate for increasing strength.

[0021] Preferably, the workbench is provided with a splash guard, which is installed on the workbench and arranged around the first guide rail.

[0022] The beneficial effects of the utility model are:

[0023] The utility model aims to provide special equipment for processing small holes in the hollow piston rod of a shock absorber, which can enhance the rigidity of the drill bit, reduce the influence of vibration on drilling, and ensure the size quality of the small holes after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of the overall structure of the professional equipment for processing the fine hole of the hollow piston rod of the shock absorber.

[0025] Figure 2 It is a rear view of the professional equipment for processing the fine hole of the hollow piston rod of the shock absorber described in the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] like Figure 1-2As shown, the utility model provides a professional equipment for processing small holes of hollow piston rods of shock absorbers. The professional equipment includes a workbench 110; a mounting plate 120, which is vertically mounted on the workbench 110. A second slide rail assembly 121, which is mounted on the mounting plate 120. A bracket 122, which is connected to the slider of the second slide rail assembly. The motor 130 is mounted on the bracket 122, and the main shaft of the motor 130 is connected to the drill bit 132 through a drill chuck 131. A drill sleeve bracket 140, which is mounted on the mounting plate and is located below the motor 130. A drill sleeve 141, which is mounted on the mounting plate. A first slide rail assembly 150, which is mounted on the workbench 110. A piston rod positioning fixture 151, which is connected to the slider of the first slide rail assembly 150, is used for the two piston rod positioning fixtures to be able to move alternately to the processing position.

[0028] The mounting plate 120 is provided with a balance plate for balancing the weight of the motor. The bracket 122 is provided with a support plate for preventing deformation. The drill sleeve bracket 140 is provided with a rib plate for increasing strength. The main shaft of the motor 130 is connected to the drill bit 132 through the drill chuck 131 to reduce the impact of vibration on drilling.

[0029] The support frame 210 is mounted on the back of the mounting plate 120 ; the electric cylinder 211 is mounted on the support frame 210 ; the air cylinder 220 is mounted on the workbench 110 , and the cylinder push rod is connected to the piston rod positioning tool 151 .

[0030] The utility model can process the small holes of the hollow piston rod of the shock absorber. The workpiece is taken and placed on the right side of the piston rod positioning tool 151. The control switch is pressed, and the tool cylinder is extended to realize the positioning and clamping of the workpiece processing position. When the control switch is pressed, the main shaft of the motor 130 rotates, and the main shaft of the motor 130 is connected to the drill bit 132 through the drill chuck 131, driving the drill bit 132 to rotate at high speed. The electric cylinder 211 drives the main shaft of the motor 130 and the drill bit on the bracket 122 to perform pulse feeding downward to realize drilling processing. The drill bit 132 drills vertically under the guidance of the drill sleeve 141. The function of the drill sleeve 141 is to ensure the rigidity of the drill bit during processing, reduce the deformation of the drill bit when it just contacts the surface of the workpiece and during the processing, and cause the hole position and the size of the hole after the through hole to exceed the tolerance. When the right end station enters the drilling processing state, the left end station can load the workpiece, press the control switch to clamp and position, and wait for processing. After the processing of the small hole is completed, the electric cylinder 220 drives the main shaft of the motor 130 on the bracket 122 and the drill bit to lift up and reset to the initial state, and the motor continues to run. The top rod of the cylinder 220 moves telescopically, driving the piston rod positioning tooling 151 to move rightward to the left end processing position. The left end station begins processing. When the left end station enters the drilling processing state, the top rod of the cylinder of the tooling at the right end station shrinks and resets, and the workpiece can be removed and replaced with another workpiece. The operation method is the same as above, and wait for processing. The working cycle of the left and right stations is as described above. If you want to stop, press the control switch, the spindle stops, and all cylinders return to the initial state.

[0031] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A special equipment for processing small holes in the hollow piston rod of a shock absorber, characterized in that: include: Workbench; A mounting plate, which is vertically mounted on the workbench; A motor connected to the mounting plate and capable of moving up and down relative to the mounting plate; A drill chuck, which is fixedly connected to the power output shaft of the motor; a drill bit, one end of which is detachably connected in the drill chuck; A drill sleeve bracket, which is fixedly connected to the mounting plate and is located below the motor; A drill sleeve, which is mounted on a drill sleeve support; Wherein, the other end of the drill bit can be rotatably passed through the drill sleeve and extended to below the drill sleeve; The piston rod positioning tool is installed on the workbench and is used to fix the piston rod to be processed so that the position of the piston rod to be processed corresponds to the position of the drill bit.

2. The special equipment for processing small holes in the hollow piston rod of the shock absorber according to claim 1, characterized in that: The number of the piston rod positioning fixtures is two; a first guide rail is provided on the workbench, and the two piston rod positioning fixtures are respectively connected to the first guide rail through sliders; Wherein, the two piston rod positioning tools can be moved alternately along the first guide rail to a processing position.

3. The special equipment for processing small holes in the hollow piston rod of a shock absorber according to claim 1, characterized in that: A second guide rail is arranged on the mounting plate in a vertical direction, and the motor is connected to the second guide rail via a slider.

4. The special equipment for processing small holes in the hollow piston rod of a shock absorber according to claim 1, characterized in that: Two balancing plates are arranged on the back of the mounting plate.

5. The special equipment for processing small holes in hollow piston rods of shock absorbers according to claim 1, characterized in that: The drill sleeve bracket is provided with a rib plate.

6. The special equipment for processing small holes in the hollow piston rod of a shock absorber according to claim 1, characterized in that: The workbench is provided with a splash guard plate which is installed on the workbench and arranged around the first guide rail.

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