Simple testing device for clamping force of chuck

Abstract

The utility model relates to the technical field of machining, and discloses a simple chuck clamping force testing device, which comprises a detection disc body arranged corresponding to a machine tool chuck, the detection disc body is provided with a plurality of force measuring structures corresponding to clamping jaws of the chuck, and the force measuring structures are arranged along the radial direction of the chuck and used for testing the clamping force of each clamping jaw of the machine tool chuck. According to the utility model, the problem chuck can be conveniently identified and detected, and the problems that the problem chuck is continuously put into use, so that the hub processing quality is unstable, and the defects of poor jumping, inconsistent dynamic balance and the like are easily generated can be effectively avoided; the radial position of the force measuring structure on the test disc body is adjustable, when different specifications of chucks are tested, the test of the different specifications of chucks can be realized by adjusting the corresponding relation between the connecting holes and the positioning holes in different radial positions, and the applicability of the test disc is improved; through the arrangement of the test boss, the perpendicularity detection of the machine tool chuck can be realized, and the hub processing precision is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a simple testing device for the clamping force of a chuck. Background Art

[0002] Aluminum alloy wheels need to go through a machining process during the manufacturing process to ensure that the appearance and size of the wheels meet the standard requirements. When machining the wheels, a three-jaw chuck is usually used to clamp the wheels, and the three jaws of the chuck move synchronously to complete the positioning and clamping of the wheels. In the actual processing process, after a period of use, the chuck will inevitably experience a certain degree of wear and aging, resulting in reduced chuck accuracy, which is mainly reflected in the imbalance of the clamping force of each jaw of the chuck. The clamping accuracy cannot be guaranteed when the wheel is clamped, which in turn affects the processing accuracy of the wheel. At the same time, the inconsistent clamping force of each jaw will cause uneven force on the wheel workpiece, which will cause severe stress release after the processing is completed, resulting in poor wheel runout and unqualified dynamic balance.

[0003] Currently, there is a lack of convenient and efficient means to detect and identify problematic chucks with unbalanced clamping forces of each jaw. As a result, problematic chucks cannot be identified in a timely manner, and the quality of wheel hub processing cannot be effectively guaranteed.

[0004] Based on this, developing a simple chuck clamping force testing device for application in actual production is an urgent problem to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a simple chuck clamping force testing device to solve the problem of lack of convenient and efficient detection and identification means for the imbalance of machine tool chuck clamping force, resulting in the problem that the hub processing quality cannot be effectively guaranteed.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A simple chuck clamping force testing device comprises a detection disc body arranged corresponding to a machine tool chuck, wherein the detection disc body is provided with a plurality of force measuring structures corresponding to the clamping claws of the chuck, and the force measuring structures are arranged along the disc radial direction and are used to test the clamping force of each clamping claw of the machine tool chuck.

[0008] Preferably, the force measuring structure comprises a test oil cylinder, a telescopic plunger is movably connected to the test oil cylinder, and a pressure gauge is connected to the test oil cylinder.

[0009] Preferably, an I-shaped support structure is provided on the test oil cylinder, and a notch is radially opened on the detection disc body corresponding to the I-shaped support structure, and the I-shaped support structure is fixed in the notch.

[0010] Preferably, the I-shaped support structure is slidably connected in the notch, a connecting hole is provided on the I-shaped support structure, and a plurality of positioning holes are radially arranged on the detection disk body corresponding to the connecting hole. The locking bolt passes through the connecting hole and is screwed into the positioning hole to realize the positioning connection between the I-shaped support structure and the notch.

[0011] Preferably, a test boss for detecting the verticality of a machine tool chuck is provided on the detection disc body, and an end surface of the test boss is parallel to the detection disc body.

[0012] The beneficial effects of the utility model are as follows: the utility model can realize whether the clamping force of the tested chuck is unbalanced by setting a force measuring structure corresponding to the chuck claws to compare the clamping force values ​​on each force measuring structure, and realize convenient identification and detection of the problem chuck, which can effectively avoid the problem chuck from being put into use, resulting in unstable wheel hub processing quality, poor beating, dynamic balance and other defects; the force measuring structure is adjustable in the radial position of the test disc body, and when testing chucks of different specifications, the corresponding relationship between the connecting hole and the positioning holes at different radial positions can be adjusted to realize the testing of chucks of different specifications, thereby improving the applicability of the utility model; the setting of the test boss enables the present embodiment to realize the verticality detection of the machine tool chuck, and further ensures the wheel hub processing accuracy. The utility model has a simple structure, is easy to obtain materials and manufacture, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the force measuring structure in the utility model.

[0016] In the figure: 1--detection disc body; 11--notch; 12--positioning hole; 2--force measuring structure; 21--test cylinder; 22--telescopic plunger; 23--pressure gauge; 24--I-shaped supporting structure; 25--connecting hole; 26--locking bolt; 3--test boss. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] like Figure 1-2As shown, a simple chuck clamping force test device includes a detection disc body 1 set corresponding to the machine tool chuck, and a plurality of force measuring structures 2 are set on the detection disc body 1 corresponding to the clamping claws of the chuck. The force measuring structures 2 are arranged along the disc radial direction and are used to test the clamping force of each clamping claw of the machine tool chuck. The force measuring structures 2 can select a pressure detector or a gravity sensor in the prior art that can realize the clamping force test of the clamping claw, which will not be described here.

[0019] When in use, the detection disc body 1 is pre-installed and clamped on the machine tool chuck to simulate the hub clamping state during normal machining, and each clamping claw of the chuck corresponds to the force measuring structure 2 respectively. The chuck clamping is started, and the clamping claw will generate a certain clamping force on the force measuring structure 2, and the corresponding clamping force value will be reflected on the force measuring structure 2. By comparing the clamping force values ​​on each force measuring structure 2, it can be determined whether the clamping force of the tested chuck is unbalanced, and the problem chuck can be identified. This embodiment can effectively avoid the problem chuck from being put into use, resulting in unstable hub processing quality, poor vibration, dynamic balance and other defects.

[0020] As a preferred embodiment, Figure 2 As shown, the force measuring structure 2 includes a test cylinder 21, on which a telescopic plunger 22 is movably connected, and a pressure gauge 23 is connected to the test cylinder 21. During the test, the jaws of the machine tool chuck are pressed against the telescopic plunger 22 of the force measuring structure 2, and the chuck is started to clamp. The jaws press the telescopic plunger 22 to form a certain pressure in the test cylinder 21, and the corresponding pressure value is displayed on the pressure gauge 23, which is used as a basis for determining whether the clamping forces of each jaw are consistent.

[0021] Furthermore, an I-shaped support structure 24 is disposed on the test oil cylinder 21 , and a notch 11 is radially opened on the test disc body 1 corresponding to the I-shaped support structure 24 , and the I-shaped support structure 24 is fixed in the notch 11 .

[0022] Furthermore, the I-shaped support structure 24 has radially adjustable freedom in the notch 11 to meet the testing requirements of chucks of different specifications. Specifically, the I-shaped support structure 24 is slidably connected in the notch 11, and a connecting hole 25 is provided on the I-shaped support structure 24. A plurality of positioning holes 12 are radially arranged on the test disc body 1 corresponding to the connecting hole 25. The locking bolt 26 passes through the connecting hole 25 and is screwed to the positioning hole 12 to achieve the positioning connection between the I-shaped support structure 24 and the notch 11. When testing chucks of different specifications, the testing of chucks of different specifications can be achieved by adjusting the corresponding relationship between the connecting hole 25 and the positioning holes 12 at different radial positions, thereby improving the applicability of the utility model.

[0023] In a further embodiment, Figure 1As shown, the detection disc body 1 is provided with a test boss 3 for detecting the verticality of the machine tool chuck, and the end face of the test boss 3 is parallel to the detection disc body 1. During the detection, the base of the dial indicator is adsorbed on the turret, and the detection head of the dial indicator slides and contacts the end face of the test boss 3. The turret is moved so that the dial indicator probe passes through the center point of the detection boss 3 and moves up and down, and the verticality of the chuck relative to the turret can be determined by the dial indicator reading. This embodiment can realize the verticality detection of the machine tool chuck, and further ensure the machining accuracy of the wheel hub.

[0024] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be regarded as belonging to the protection of the present invention.

Claims

1. A simple chuck clamping force testing device, characterized in that: The invention comprises a detection disc body (1) arranged corresponding to a machine tool chuck, wherein a plurality of force measuring structures (2) are arranged on the detection disc body (1) corresponding to the jaws of the chuck, and the force measuring structures (2) are arranged along the radial direction of the disc and are used to test the clamping force of each jaw of the machine tool chuck.

2. A simple chuck clamping force testing device according to claim 1, characterized in that: The force measuring structure (2) comprises a test oil cylinder (21), a telescopic plunger (22) is movably connected to the test oil cylinder (21), and a pressure gauge (23) is connected to the test oil cylinder (21).

3. A simple chuck clamping force testing device according to claim 2, characterized in that: An I-shaped support structure (24) is provided on the test oil cylinder (21), a notch (11) is radially provided on the test disc body (1) corresponding to the I-shaped support structure (24), and the I-shaped support structure (24) is fixed in the notch (11).

4. A simple chuck clamping force testing device according to claim 3, characterized in that: The I-shaped support structure (24) is slidably connected in the notch (11); a connection hole (25) is provided on the I-shaped support structure (24); a plurality of positioning holes (12) are radially provided on the detection disk body (1) corresponding to the connection hole (25); a locking bolt (26) passes through the connection hole (25) and is screwed into the positioning hole (12), thereby achieving a positioning connection between the I-shaped support structure (24) and the notch (11).

5. The simple chuck clamping force testing device according to claim 1, characterized in that: The detection disc body (1) is provided with a test boss (3) for detecting the verticality of a machine tool chuck, and an end surface of the test boss (3) is parallel to the detection disc body (1).

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