A tool for detecting the drawbar force of the spindle of a machining center

Abstract

The present invention discloses a tool for detecting the drawbar force of a machining center spindle, comprising: a drawbar force detector main body and a drawbar force numerical display screen. The drawbar force numerical display screen is installed on the bottom surface of the drawbar force detector main body, and a drawbar force docking head is arranged at the top of the drawbar force detector main body. A buckle is arranged inside the drawbar force detector main body. The bottom of the buckle is connected to the drawbar force detector main body through two connecting springs. A limiting block is sleeved on the outer wall of the drawbar force detector main body, and a V-shaped opening is formed on the outer wall surface of the limiting block. For this tool for detecting the drawbar force of a machining center spindle, by pressing the buckle, the limiting block can be conveniently replaced on the drawbar force detector main body, so that the limiting block can be correspondingly replaced according to the different sizes of the machining center spindle, facilitating accurate measurement. Through the formation of the V-shaped opening, extrusion of the internal cooling water copper plug inside the machining center spindle can be avoided, thereby preventing damage to the internal cooling water copper plug.

Description

Technical Field

[0001] The present invention relates to the technical field of spindle broach detection, and specifically provides a tool for detecting the pulling force of the spindle of a machining center. Background Art

[0002] The machining center evolved from the CNC milling machine. The biggest difference between the machining center and the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing different-purpose tools on the tool magazine, the machining tool on the spindle can be changed through the automatic tool changer during a single clamping, achieving multiple machining functions; this device is a tool for detecting the pulling force of the spindle of the machining center, which can measure the pulling force of the machining tool installed on the spindle of the machining center.

[0003] The existing tools for detecting the pulling force of the spindle of a machining center still have the following problems when in use: when the existing tools for detecting the pulling force of the spindle of a machining center are in use, the limit block and the main body of the pulling force detector cannot be disassembled and replaced, resulting in a poor applicable range of the detection tool and being unable to accurately measure the pulling force of the spindles of different models of machining centers.

[0004] Therefore, it is necessary to improve the above problems to meet the market demand. Summary of the Invention

[0005] The purpose of the present invention is to provide a tool for detecting the pulling force of the spindle of a machining center, so as to solve the problem that when the existing tool for detecting the pulling force of the spindle of a machining center is in use, the limit block and the main body of the pulling force detector cannot be disassembled and replaced, resulting in a poor applicable range of the detection tool and being unable to accurately measure the pulling force of the spindles of different models of machining centers as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A tool for detecting the pulling force of the spindle of a machining center, comprising: a main body of the pulling force detector, a pulling force numerical display screen, and a pulling force docking head. The pulling force numerical display screen is installed on the bottom surface of the main body of the pulling force detector, and the pulling force docking head is arranged at the top of the main body of the pulling force detector;

[0007] A buckle is arranged inside the main body of the pulling force detector. The bottom of the buckle is connected to the main body of the pulling force detector through two connecting springs. A limit block is sleeved on the outer wall of the main body of the pulling force detector, and a V-shaped opening is formed on the outer wall surface of the limit block.

[0008] Preferably, the buckles are symmetrically distributed with respect to the longitudinal center line of the main body of the pulling force detector.

[0009] Preferably, the cross-section of the buckle is in a "concave" shape structure.

[0010] Preferably, the buckle and the main body of the pulling force detector form an elastic linkage structure through two connecting springs.

[0011] Preferably, the inner wall of the limiting block is tangent to the outer wall of the tensile force detector body.

[0012] Preferably, circular limiting grooves matching the size of the protruding end of one end of the buckle are formed on both sides of the limiting block.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] To sum up, through the mutual cooperation among the buckle, the connecting spring and the limiting block, when pressing the buckle, it is convenient to disassemble and replace the limiting block, so that the limiting block can be correspondingly replaced according to the different sizes of the main shaft of the machining center, facilitating accurate measurement; through the opening of the V-shaped opening, when the limiting block is pushed into the inside of the main shaft of the machining center, it can prevent the limiting block from squeezing the internal cold water copper plug inside the main shaft of the machining center, causing damage to the internal cold water copper plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present invention;

[0016] Figure 2 is the side view structural schematic diagram of the present invention;

[0017] Figure 3 is the top view structural schematic diagram of the limiting block of the present invention;

[0018] Figure 4 is the installation cross-sectional structural schematic diagram of the limiting block of the present invention.

[0019] In the figure: 1. Tensile force detector body; 2. Tensile force numerical display screen; 3. Tensile force docking head; 4. Buckle; 5. Connecting spring; 6. Limiting block; 7. V-shaped opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a tool for detecting the pulling force of the main shaft of a machining center, including: a tensile force detector body 1, a tensile force numerical display screen 2 and a tensile force docking head 3. The tensile force numerical display screen 2 is installed on the bottom surface of the tensile force detector body 1, and the tensile force docking head 3 is arranged on the top of the tensile force detector body 1;

[0022] Inside the main body 1 of the tensile force detector, there is a buckle 4. The bottom of the buckle 4 is connected to the main body 1 of the tensile force detector through two connecting springs 5. The outer wall of the main body 1 of the tensile force detector is sleeved with a limit block 6, and a V-shaped opening 7 is provided on the outer wall surface of the limit block 6.

[0023] The buckles 4 are symmetrically distributed about the longitudinal midline of the main body 1 of the tensile force detector. The cross-section of the buckle 4 is in a "concave" shape. Through the setting of the buckle 4, the buckle 4 can be inserted into the inside of the limit block 6 to facilitate the fixation of the limit block 6. The buckle 4 and the main body 1 of the tensile force detector form an elastic linkage structure through two connecting springs 5. Through the above structure, when pressing the buckle 4, it is convenient to replace the limit block 6. The inner wall of the limit block 6 is tangent to the outer wall of the main body 1 of the tensile force detector. Through the above structure, it is convenient for the limit block 6 to be sleeved on the main body 1 of the tensile force detector, and there is no gap between the main body 1 of the tensile force detector and the limit block 6. Circular limit grooves matching the size of the protruding ends of one end of the buckle 4 are provided on both sides of the limit block 6. Through the above structure, it is convenient for the buckle 4 to be inserted into the inside of the limit block 6.

[0024] Working principle: As Figures 1-4 shown, when using this tool for detecting the spindle pulling force of a machining center, first, select a limit block 6 that matches the spindle size model of the machining center, sleeve the limit block 6 on the main body 1 of the tensile force detector, and press the buckle 4 so that the buckle 4 squeezes the two connecting springs 5 and contracts into the inside of the main body 1 of the tensile force detector. When the limit block 6 slides to the matching position, the buckle 4 can be inserted into the circular limit grooves provided on both sides of the limit block 6 through the elasticity of the two connecting springs 5, so as to fix the limit block 6. Finally, insert the tensile force docking head 3 into the spindle of the machining center to detect the tensile force; through the V-shaped opening 7 provided on the limit block 6, when the limit block 6 is pushed into the spindle of the machining center, it can avoid squeezing the internal cooling water copper plug inside the spindle of the machining center, thereby preventing the internal cooling water copper plug from being damaged. This is the characteristic of this tool for detecting the spindle pulling force of a machining center.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for detecting the drawbar force of a machining center spindle, comprising: Tensile force detector main body (1), tensile force value display screen (2) and tensile force docking head (3), characterized in that a tensile force value display screen (2) is installed on the bottom surface of the tensile force detector main body (1), and a tensile force docking head (3) is arranged at the top of the tensile force detector main body (1); A buckle (4) is arranged inside the tensile force detector main body (1). The bottom of the buckle (4) is connected to the tensile force detector main body (1) through two connecting springs (5). A limiting block (6) is sleeved on the outer wall of the tensile force detector main body (1), and a V-shaped opening (7) is formed on the outer wall surface of the limiting block (6); Among them, the cross section of the buckle (4) is in a "concave" shape structure; An elastic linkage structure is formed between the buckle (4) and the tensile force detector main body (1) through two connecting springs (5); Circular limiting grooves matching the size of the protruding ends of one end of the buckle (4) are formed on both sides of the limiting block (6).

2. The broach force detection tool for the spindle of a machining center according to claim 1, wherein: The buckles (4) are symmetrically distributed about the longitudinal center line of the tensile force detector main body (1).

3. A tool for detecting the drawbar force of a machining center spindle according to claim 1, characterized in that: The inner wall of the limiting block (6) is tangent to the outer wall of the tensile force detector main body (1).

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