Measuring tool capable of preventing measurement offset

Abstract

The utility model discloses a measuring tool for preventing measurement deviation, which comprises a spindle box, a slide carriage box, a universal bamboo joint pipe and a measuring tool assembly, a clamping jaw chuck is arranged at the center of the right side of the spindle box, a feeding box is arranged on the left side of the front end face of a machine body, a polish rod is arranged below a screw rod, and a tool rest is arranged on the top end face of the slide carriage box. The universal bamboo joint pipe is arranged on the left side of the slide carriage box, and the measuring tool assembly is arranged at one end of the universal bamboo joint pipe away from the slide carriage box. According to the measuring tool capable of preventing measurement offset, the measuring tool assembly clamps a workpiece through springs of the upper clamping plate and the lower clamping plate, it can be ensured that the workpiece is clamped and kept at a stable position in the measuring process, measurement offset is avoided, the measuring tool assembly is fixed through the universal bamboo joint pipe, the measuring tool assembly can be adjusted and rotated in multiple directions, and the measuring accuracy is improved. Therefore, the measuring requirements of workpieces at different angles and positions are met, the stability of the measuring tool assembly is kept when static and long-time measurement is needed, and it is prevented that the measuring tool assembly moves or deviates unnecessarily in the measuring process, and the precision is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled lathes, in particular to a measuring instrument capable of preventing measurement deviation. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools at present. It is mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, reaming and boring, etc.

[0003] For example, the patent document with application number 202020778330.4 discloses a length measuring device for a CNC lathe, which includes a top plate arranged on a CNC machine tool; a measuring box, which is fixedly mounted on the bottom of the top plate; a through port, which is opened on the bottom inner wall of the measuring box; a fixing rod, which is fixedly mounted on the top inner wall of the measuring box; a fixing plate, which is fixedly mounted on the bottom end of the fixing rod; and two plastic clamps, which are both fixedly mounted on the bottom of the fixing plate, and the bottoms of the two plastic clamps are both provided with clips. The length measuring device for a CNC lathe provided by the utility model has the advantages of being simple to operate and can assist in measurement.

[0004] For similar coffee grinders, since there are various workpieces when lathes are processing workpieces, the shapes or sizes of the parts that need to be measured are relatively complex, and it may be necessary to adjust the position or angle of the vernier caliper. In addition, due to the complex shape of the workpiece during measurement, it may be impossible to find a suitable clamping point, resulting in uneven clamping force and offset.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a measuring instrument that prevents measurement deviation is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a measuring instrument that can prevent measurement deviation. When a lathe processes a workpiece, there will be a variety of workpieces, and the shapes or sizes of the parts to be measured are relatively complex. It may be necessary to adjust the position or angle of the vernier caliper. During measurement, due to the complex shape of the workpiece, it may be impossible to find a suitable clamping point, thereby causing the problem of deviation due to uneven clamping force.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a measuring instrument for preventing measurement deviation, comprising a spindle box, a slide box, a universal bamboo tube and a measuring tool assembly, a jaw chuck is arranged at the center of the right side of the spindle box, a workpiece is arranged at the center of the jaw chuck, a body is arranged on the bottom end face of the spindle box, a feed box is arranged on the left side of the front end face of the body, a screw rod is arranged on the right side of the feed box, a smooth rod is arranged below the screw rod, the slide box is sleeved on the outer surfaces of the screw rod and the smooth rod, a tool holder is arranged on the top surface of the slide box, the universal bamboo tube is arranged on the left side of the slide box, and the measuring tool assembly is arranged at one end of the universal bamboo tube away from the slide box.

[0008] Furthermore, the measuring tool assembly includes a lower splint, a ruler, an upper splint, a fixing pin and a spring. The lower splint is arranged at one end of the universal bamboo tube, and the upper splint is arranged above the universal bamboo tube. A measuring ruler is arranged at the center of the inner cavity of the lower splint and the upper splint, and a fixing pin is arranged on the left side of the measuring ruler. The outer surface of the fixing pin is sleeved with a spring.

[0009] Furthermore, the ruler and the fixing pin are respectively passed through the inner cavities of the lower clamping plate and the upper clamping plate.

[0010] Furthermore, two ends of the spring respectively abut between the lower clamping plate and the fixing pin, and the contact surfaces between the lower clamping plate, the upper clamping plate and the ruler are all provided with rubber.

[0011] Furthermore, a base is provided on the bottom end surface of the fuselage, and two groups of the base are provided. A tail stock is provided on the right side of the top end surface of the fuselage.

[0012] Furthermore, the surface of the ruler is provided with scales, and the positions of the clamping jaw chuck and the tailstock are on the same horizontal line.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the measuring tool assembly clamps the workpiece through the springs of the upper clamping plate and the lower clamping plate, which can ensure that the workpiece is clamped and maintained in a stable position during the measurement process to avoid measurement deviation. The measuring tool assembly is fixed by the universal bamboo tube, so that the measuring tool assembly can be adjusted and rotated in multiple directions to meet the measurement needs of workpieces at different angles and positions. When static and long-term measurement is required, the stability of the measuring tool assembly is maintained to prevent it from unnecessary movement or deviation during the measurement process, which affects the accuracy. The specific contents are as follows:

[0014] A measuring tool assembly and a universal bamboo tube are set, and the universal bamboo tube fixes the measuring tool assembly to measure the workpiece. The measuring tool assembly measures the workpiece through a ruler, and the upper clamping plate and the lower clamping plate support the lower clamping plate and the upper clamping plate from below through the elasticity of the spring to clamp the workpiece. By clamping the workpiece with the spring, the measurement deviation caused by the change of the workpiece position can be reduced, and the measurement accuracy is improved. Compared with manual clamping of the workpiece, the use of spring clamping can reduce the need for manual operation and improve the measurement efficiency. By fixing the measuring tool assembly with the universal bamboo tube, the stability of the measuring tool assembly can be maintained when needed, and its position can be stably maintained when long-term measurement and high-precision measurement are required, which is convenient for measurement, maintains measurement accuracy and prevents deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of a measuring instrument for preventing measurement deviation according to the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of a measuring instrument for preventing measurement deviation according to the utility model;

[0017] Figure 3 It is a rear view structural schematic diagram of a measuring instrument for preventing measurement deviation according to the utility model;

[0018] Figure 4 The utility model is a three-dimensional structural schematic diagram of a measuring tool component of a measuring tool for preventing measurement deviation.

[0019] In the figure: 1, spindle box; 2, jaw chuck; 3, workpiece; 4, machine body; 41, base; 5, screw rod; 6, slide box; 7, tailstock; 8, tool holder; 9, universal bamboo tube; 10, measuring tool assembly; 101, upper clamping plate; 102, ruler; 103, lower clamping plate; 104, fixing pin; 105, spring; 11, polished rod; 12, feed box. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figures 1 to 4 As shown, a measuring instrument for preventing measurement deviation comprises a spindle box 1, a slide box 6, a universal bamboo tube 9 and a measuring tool assembly 10. A clamping jaw chuck 2 is arranged at the center of the right side of the spindle box 1. The spindle box 1 provides power and control for driving the clamping jaw chuck 2. A workpiece 3 is arranged at the center of the clamping jaw chuck 2. The clamping jaw chuck 2 clamps the workpiece 3 for rotational movement and fixes it. A body 4 is arranged at the bottom end surface of the spindle box 1. A base 41 is arranged at the bottom end surface of the body 4. Two groups of bases 41 are arranged. The body 4 and the base 41 are used for support and fixation to ensure the stability of the entire structure.

[0022] A feed box 12 is provided on the left side of the front end face of the machine body 4. The feed box 12 can obtain the required feed amount or pitch, and transmit the motion to the tool holder 8 through the screw rod 5 and the polished rod 11 for cutting. A screw rod 5 is provided on the right side of the feed box 12, and a polished rod 11 is provided below the screw rod 5. The screw rod 5 is specially provided for turning various threads. When turning other surfaces of the workpiece 3, only the polished rod 11 is used, and the screw rod 5 is not used. The screw rod 5 and the polished rod 11 are used to connect the feed box 12 and the slide box 6, and the motion and power of the feed box 12 are transmitted to the tool holder 8. The slide box 6 is transmitted to the slide box 6, so that the slide box 6 obtains longitudinal linear motion. The slide box 6 is sleeved on the outer surface of the lead screw 5 and the polished rod 11. The top surface of the slide box 6 is provided with a tool holder 8, and the tool holder 8 clamps the tool to make the tool perform longitudinal, transverse or oblique feeding motion. The right side of the top surface of the machine body 4 is provided with a tailstock 7. The positions of the clamping jaw chuck 2 and the tailstock 7 are on the same horizontal line. The tailstock 7 is used to install the rear center for supporting the workpiece 3 at the positioning clamping jaw chuck 2, and can also be installed with drills, reamer and other hole processing tools for hole processing;

[0023] The universal bamboo tube 9 is arranged on the left side of the slide box 6. The universal bamboo tube 9 provides flexible angle adjustment capability, and can be used for measurement at different angles and positions, which increases the applicability and flexibility of measurement. The measuring tool assembly 10 is fixed by the universal bamboo tube 9, and the stability of the measuring tool assembly 10 can be maintained when needed. When long-term measurement and high-precision measurement are required, its position can be stably maintained, which is convenient for measurement, maintains measurement accuracy and prevents deviation. The measuring tool assembly 10 is arranged at one end of the universal bamboo tube 9 away from the slide box 6. The measuring tool assembly 10 The measuring tool assembly 10 comprises a lower clamping plate 101, a ruler 102, an upper clamping plate 103, a fixing pin 104 and a spring 105. The lower clamping plate 101 is arranged at one end of the universal bamboo tube 9. The lower clamping plate 101 provides a stable support so that the measuring tool assembly 10 can be firmly fixed on the universal bamboo tube 9 to prevent shaking or deviation during the measurement process. An upper clamping plate 103 is arranged above the universal bamboo tube 9 to form a clamp with the lower clamping plate 101, and can firmly clamp the workpiece 3 to prevent the workpiece 3 from moving or deflecting during the measurement process. The lower clamping plate 101 and the upper clamping plate 103 are internally connected. A ruler 102 is provided at the center of the cavity, and a scale is provided on the surface of the ruler 102. The ruler 102 provides an accurate measurement scale, and can accurately measure the size of the workpiece 3, thereby improving the measurement accuracy. A fixing pin 104 is provided on the left side of the ruler 102, and a spring 105 is sleeved on the outer surface of the fixing pin 104. The ruler 102 and the fixing pin 104 are successively passed through the inner cavity of the lower clamping plate 101 and the upper clamping plate 103, and the two ends of the spring 105 are respectively abutted between the lower clamping plate 101 and the fixing pin 104, and the lower clamping plate 101 and the upper clamping plate 103 are connected by The elasticity of the spring 105 supports the lower clamp plate 101 and the upper clamp plate 103 from the bottom to clamp the workpiece 3. The spring 105 on the outer surface of the fixing pin 104 clamps the workpiece 3, which can maintain the stability of the measurement and prevent loosening. The contact surfaces between the lower clamp plate 101, the upper clamp plate 103 and the ruler 102 are all provided with rubber. The rubber on the contact surface between the lower clamp plate 101, the upper clamp plate 103 and the ruler 102 can ensure the stability of the contact surface with the ruler 102 and prevent the ruler 102 from shifting during the measurement process, and the ruler 102 of different lengths can be replaced.

[0024] In summary, if Figures 1 to 4As shown, in the measuring instrument for preventing measurement deviation, when measuring the workpiece 3, the spring 105 of the measuring tool assembly 10 plays the role of clamping the workpiece 3, and the fixing pin 104 connects the two clamping plates. The spring 105 on the surface of the fixing pin 104 has a certain elasticity. When clamping the workpiece 3, the lower clamping plate 101 and the upper clamping plate 103 support the lower clamping plate 101 and the upper clamping plate 103 from below through the elasticity of the spring 105 to clamp the workpiece 3, so as to keep the stable position of the workpiece 3 during the measurement process, thereby reducing the measurement deviation, and supporting the lower clamping plate 101 to adapt to the workpiece 3 through the elastic change. According to the size of the workpiece 3, the ruler 102 measures the size and shape changes of the workpiece 3. The universal bamboo tube 9 has a certain anti-torsion property and can withstand a certain degree of torque and moment. It can maintain a certain rotation ability even at different angles and directions. This property enables it to maintain a stable position of the measuring tool assembly 10 during the measurement process, and adapt to the measuring tool assembly 10 at different positions and angles. When long-term measurement and high-precision measurement are required, its position can be stably maintained, which is convenient for measurement, maintains measurement accuracy, and prevents deviation.

[0025] The body 4 and the base 41 fix the entire structure, the spindle box 1 drives the clamping chuck 2 to rotate at high speed, the feed box 12 provides power and control signals, and transmits the required feed amount or pitch to the screw rod 5 and the polished rod 11. The screw rod 5 and the polished rod 11 are connected to transmit the movement to the tool holder 8. When cutting is required, the screw rod 5 will intervene, and when turning other surfaces, only the polished rod 11 is used. The movement of the polished rod 11 and the screw rod 5 is transmitted to the slide box 6, so that the slide box 6 obtains longitudinal linear motion, the tool holder 8 clamps the tool, and the slide box 6 drives the tool holder 8 to make the tool perform longitudinal, transverse or oblique feed movement to cut the workpiece 3. The tailstock 7 used to install the workpiece 3 for positioning the clamping chuck 2 for support can also be installed with drill bits, reamers and other hole processing tools for hole processing.

Claims

1. A measuring instrument for preventing measurement deviation, comprising a spindle box (1), a slide box (6), a universal bamboo tube (9) and a measuring tool assembly (10), characterized in that: A clamping chuck (2) is arranged at the center of the right side of the spindle box (1), a workpiece (3) is arranged at the center of the clamping chuck (2), a body (4) is arranged at the bottom end surface of the spindle box (1), a feed box (12) is arranged on the left side of the front end surface of the body (4), a screw rod (5) is arranged on the right side of the feed box (12), a polished rod (11) is arranged below the screw rod (5), the slide box (6) is sleeved on the outer surfaces of the screw rod (5) and the polished rod (11), a tool holder (8) is arranged on the top end surface of the slide box (6), the universal bamboo tube (9) is arranged on the left side of the slide box (6), and the measuring tool assembly (10) is arranged at one end of the universal bamboo tube (9) away from the slide box (6).

2. A measuring instrument for preventing measurement deviation according to claim 1, characterized in that: The measuring tool assembly (10) comprises a lower clamping plate (101), a measuring ruler (102), an upper clamping plate (103), a fixing pin (104) and a spring (105); the lower clamping plate (101) is arranged at one end of the universal bamboo tube (9); the upper clamping plate (103) is arranged above the universal bamboo tube (9); the measuring ruler (102) is arranged at the center of the inner cavity of the lower clamping plate (101) and the upper clamping plate (103); the fixing pin (104) is arranged on the left side of the measuring ruler (102); and the outer surface of the fixing pin (104) is sleeved with a spring (105).

3. A measuring instrument for preventing measurement deviation according to claim 2, characterized in that: The measuring ruler (102) and the fixing pin (104) are respectively passed through the inner cavities of the lower clamping plate (101) and the upper clamping plate (103).

4. The measuring instrument for preventing measurement deviation according to claim 2, characterized in that: The two ends of the spring (105) respectively abut between the lower clamping plate (101) and the fixing pin (104), and the contact surfaces between the lower clamping plate (101), the upper clamping plate (103) and the ruler (102) are all provided with rubber.

5. The measuring instrument for preventing measurement deviation according to claim 2, characterized in that: The bottom end surface of the fuselage (4) is provided with a base (41), and the base (41) is provided with two groups. A tailstock (7) is provided on the right side of the top end surface of the fuselage (4).

6. The measuring instrument for preventing measurement deviation according to claim 5, characterized in that: The surface of the ruler (102) is provided with scales, and the positions of the clamping jaw chuck (2) and the tailstock (7) are located on the same horizontal line.

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