Tool car for tolerance fit and measurement teaching

Abstract

The utility model belongs to the technical field of teaching tool cars, and particularly discloses a tool car for tolerance fit and measurement teaching, which comprises a car body, a marble workbench is fixed on the upper surface of the car body, and detection case parts and three-dimensional detection parts are detachably mounted on the upper surface of the marble workbench. The marble workbench is provided with two positioning mechanisms which are used for rapidly positioning three-dimensional detection parts and detection case parts and have a magnetic adsorption function, and one side of each detection case part is provided with a detection mechanism used for measuring the detection case parts. According to the utility model, through the cooperation of the positioning mechanism, the detection mechanism and the height gauge device, detection case parts and three-dimensional detection parts can be rapidly and accurately fixed on the surface of the marble workbench by using the magnetic attraction characteristic of the positioning mechanism, so that the probability of deflection and displacement of the parts is reduced, and the operation efficiency of teachers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tool vehicles, in particular to a tool vehicle for tolerance matching and measurement teaching. Background Art

[0002] In the field of mechanical processing, in order to help students clearly understand the relationship between tolerance and measurement in parts processing and improve the teaching quality, a tolerance and measurement teaching tool cart is usually used to assist teaching.

[0003] For example, the patent document application number is 202220599110.4, which discloses a tool cart for tolerance fitting and measurement teaching, including a tool cart main body, a placement cabinet is provided on one side of the placement cabinet, a side cabinet door is installed on one side of the tool cart main body, and a measuring tool layer drawer, a case parts drawer and a large piece drawer are provided on the side adjacent to the side cabinet door from top to bottom, and universal wheels are installed at two adjacent corners of the lower surface of the tool cart main body; this utility model mainly uses the measuring tool layer drawer, the case parts drawer and the large piece drawer to store measuring tools, teaching case parts and measuring instruments respectively, which is convenient for taking when used, and is coordinated with the measuring components, concentric detectors and height gauge devices installed on the marble workbench, the actual size of parts can be usually measured during teaching, which is convenient for actual operation, adds practical operation on the basis of the lecturer's theory, improves the students' understanding ability, and thus improves the quality of students' learning.

[0004] However, since the inspection case parts are fixed on the marble workbench by two workpiece pressure plates, the position of the inspection case parts may be skewed or offset when they are installed. The teacher may need to place and adjust the position of the inspection case parts many times, which is not convenient for quick installation of the inspection case parts, thereby reducing the efficiency of teaching operations. Therefore, we need to propose a tolerance matching and measurement teaching tool cart to solve the above problems, so that the inspection case parts can be quickly installed on the marble workbench through the positioning mechanism, thereby improving the efficiency of teaching operations. Utility Model Content

[0005] The purpose of the utility model is to provide a tool cart for tolerance matching and measurement teaching, which can quickly install inspection case parts on a marble workbench through a positioning mechanism, thereby improving teaching operation efficiency and solving the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tool cart for tolerance fitting and measurement teaching, comprising a cart body, a marble workbench fixed to the upper surface of the cart body, a detection case part and a three-dimensional detection part detachably mounted on the upper surface of the marble workbench, two positioning mechanisms with magnetic adsorption functions for quickly positioning the three-dimensional detection parts and the detection case parts are mounted on the marble workbench, a detection mechanism for measuring the detection case parts is provided on one side of the detection case part, a height gauge device for measuring the three-dimensional detection part is provided on one side of the three-dimensional detection part, a concentric detection device is mounted on one side of the height gauge device, and an axis detection part is mounted on the concentric detection device;

[0007] A flexible rod is installed at a corner of the upper surface of the marble workbench, and a high-definition camera is installed at one end of the flexible rod.

[0008] Preferably, the positioning mechanism includes a bidirectional screw and a magnetic block embedded in the upper surface of the marble workbench, both ends of the bidirectional screw are threadedly connected to the first positioning plate, the magnetic block is located between the two first positioning plates, and the interior of the marble workbench is provided with a slide groove for the rotation installation of the bidirectional screw and the sliding of the first positioning plate, one end of the bidirectional screw passes through one side of the marble workbench and is installed with an adjustment handle, a second positioning plate is provided on the side of the magnetic block adjacent to the first positioning plate, and the second positioning plate is fixed to the upper surface of the marble workbench.

[0009] Preferably, the installation directions of the two positioning mechanisms are arranged in parallel, a scale line is provided on one side of the slide groove, and the upper surface of the magnetic block is flush with the upper surface of the marble workbench.

[0010] Preferably, the detection mechanism includes linear guide rails installed on adjacent two side edges of the upper surface of the marble workbench, the two linear guide rails are vertically arranged, and a first measuring component is slidably installed on the linear guide rails, and the two first measuring components are located above the detection case parts.

[0011] Preferably, the concentricity detection device includes a second measuring component and a part mounting mechanism fixed on the upper surface of the marble workbench, and the second measuring component is mounted on one of the linear guide rails.

[0012] Preferably, the parts installation mechanism includes a bottom plate, a base is fixed on the upper surface of the bottom plate, a pressure plate is installed on the base, a mounting shaft for shaft detection parts to be plugged in is installed below the pressure plate, and the pressure plate is in conflict with the surface of the shaft detection parts.

[0013] Preferably, the first measuring assembly and the second measuring assembly both comprise a table suction workbench slidably mounted on a linear guide rail, and a dial indicator is mounted on the table suction workbench via a universal arm.

[0014] Preferably, an armrest is installed on one side of the vehicle body, and a large-item drawer and a plurality of measuring tool layer drawers are provided on a side of the vehicle body adjacent to the armrest, and the large-item drawer is located below the plurality of measuring tool layer drawers.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model cooperates with the positioning mechanism, the detection mechanism and the height gauge device, and utilizes the magnetic attraction characteristics of the positioning mechanism to quickly and accurately fix the detection case parts and three-dimensional detection parts on the surface of the marble workbench, reducing the probability of parts being skewed and shifted, thereby improving the efficiency of the teacher's operation.

[0017] 2. The utility model is equipped with a high-definition camera, which makes it easier for teachers to record, enlarge and project, and conduct remote teaching in class, thereby improving the convenience of teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of a marble workbench of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the positioning mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the adjusting screw rod and the first positioning plate of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the detection mechanism of the utility model;

[0023] Figure 6 This is a structural diagram of the concentricity detection device of the present utility model.

[0024] In the figure: 1. Car body; 2. Marble workbench; 3. Three-dimensional inspection parts; 4. Flexible rod; 5. Height gauge device; 6. Part placement slot; 7. Concentric detection device; 71. Base; 72. Pressure plate; 73. Shaft inspection parts; 74. Mounting shaft; 75. Bottom plate; 8. Linear guide; 9. Suction table workbench; 10. Inspection case parts; 11. Positioning mechanism; 111. Bidirectional screw; 112. Slide; 113. First positioning plate; 114. Magnetic block; 115. Second positioning plate; 116. Scale line; 12. Armrest; 13. First measuring component; 14. Second measuring component; 15. Adjustment handle; 16. Large item drawer; 17. Measuring tool layer drawer; 18. High-definition camera; 19. Dial indicator. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The utility model provides a technical solution: a tool vehicle for tolerance matching and measurement teaching, comprising a vehicle body 1, a marble workbench 2 is fixed to the upper surface of the vehicle body 1, a detection case part 10 and a three-dimensional detection part 3 are detachably mounted on the upper surface of the marble workbench 2, two positioning mechanisms 11 with a magnetic adsorption function are mounted on the marble workbench 2 for quickly positioning the three-dimensional detection part 3 and the detection case part 10, a detection mechanism for measuring the detection case part 10 is arranged on one side of the detection case part 10, a height gauge device 5 for measuring the three-dimensional detection part 3 is arranged on one side of the three-dimensional detection part 3, a concentric detection device 7 is mounted on one side of the height gauge device 5, and an axis detection part 73 is mounted on the concentric detection device 7;

[0027] By utilizing the magnetic properties of the positioning mechanism 11, the test case parts 10 and the three-dimensional test parts 3 can be quickly and accurately fixed on the surface of the marble workbench 2, reducing the probability of the parts being skewed and shifted, thereby improving the efficiency of the teacher's operation.

[0028] A flexible rod 4 is installed at a corner of the upper surface of the marble workbench 2, and a high-definition camera 18 is installed at one end of the flexible rod 4. While the high-definition camera 18 is supported by the flexible rod 4, the position of the high-definition camera 18 can be adjusted in any direction, which is convenient for recording from different directions. It is also convenient for teachers to record, enlarge and project, and conduct remote teaching in class, thereby improving the convenience of teachers' teaching.

[0029] The positioning mechanism 11 includes a bidirectional screw rod 111 and a magnetic block 114 embedded in the upper surface of the marble workbench 2. The two ends of the bidirectional screw rod 111 are threadedly connected to the first positioning plate 113. The magnetic block 114 is located between the two first positioning plates 113. The interior of the marble workbench 2 is provided with a slide groove 112 for the rotation installation of the bidirectional screw rod 111 and the sliding of the first positioning plate 113. One end of the bidirectional screw rod 111 passes through one side of the marble workbench 2 and is installed with an adjustment handle 15. A second positioning plate 115 is provided on the side adjacent to the first positioning plate 113 of the magnetic block 114, and the second positioning plate 115 is fixed to the upper surface of the marble workbench 2. The bidirectional screw rod 111 is rotated by adjusting the handle 15. The two first positioning plates 113 are moved relative to each other on the two-way screw rod 111 by means of the threaded connection between the two-way screw rod 111 and the first positioning plate 113 to adjust the distance between the two first positioning plates 113. The two first positioning plates 113 and the second positioning plate 115 are used to position the parts from three adjacent sides, effectively reducing the probability of skewed installation of the parts. At the same time, since the detection case parts 10 and the three-dimensional detection parts 3 are both made of metal, the magnetic block 114 can be used to adsorb and fix the parts, thereby improving the firmness of the part fixation. The magnetic block 114 uses an electromagnet, which is energized when the parts are placed and has magnetism to adsorb and fix the parts. The electromagnet is de-energized when the parts are taken and placed, which facilitates quick taking and placing of the parts.

[0030] The installation directions of the two positioning mechanisms 11 are arranged in parallel, a scale line 116 is provided on one side of the slide groove 112, and the upper surface of the magnetic block 114 is flush with the upper surface of the marble workbench 2, so that it is convenient to adjust the distance between the two first positioning plates 113 from the same direction, so that the positioning mechanism 11 can be used to fix parts of different sizes, thereby improving the versatility of the tool cart.

[0031] The detection mechanism includes a linear guide rail 8 installed on the adjacent two side edges of the upper surface of the marble workbench 2, and the two linear guide rails 8 are vertically arranged. A first measuring component 13 is slidably installed on the linear guide rail 8, and the two first measuring components 13 are located above the detection case part 10. Through the cooperation of the first measuring component 13, the second measuring component 14 and the concentric detection device 7, the size of the part can be actually measured during teaching, which is convenient for actual operation, and practical operation is added on the basis of the main teacher's theory, thereby improving the students' understanding ability and improving the quality of students' learning.

[0032] The concentricity detection device 7 includes a second measuring component 14 and a part mounting mechanism fixed to the upper surface of the marble workbench 2 , and the second measuring component 14 is mounted on one of the linear guide rails 8 .

[0033] The parts mounting mechanism includes a bottom plate 75, a base 71 is fixed to the upper surface of the bottom plate 75, a pressure plate 72 is installed on the base 71, and a mounting shaft 74 for the shaft detection part 73 to be plugged in is installed below the pressure plate 72. The pressure plate 72 is in contact with the surface of the shaft detection part 73. When in use, the shaft detection part 73 is fixed by the clamping force between the pressure plate 72 and the base 71, which facilitates the use of the second measuring component 14 to accurately measure the roundness, concentricity, circumferential runout or cross-sectional difference of the shaft part, and the measuring diameter range is: 3-40mm.

[0034] The first measuring component 13 and the second measuring component 14 both include a suction table 9 slidably mounted on a linear guide rail 8. A dial indicator 19 is mounted on the suction table 9 via a universal arm. The universal arm drives the dial indicator 19 to be fixed in any direction, which is convenient for measuring the workpiece. The dial indicator 19 is a measuring instrument that uses a rack gear or a lever gear transmission to convert the linear displacement of the measuring rod into the angular displacement of the pointer. The position of the dial indicator 19 can be moved by cooperating with the linear guide rail 8 and the suction table 9.

[0035] An armrest 12 is installed on one side of the vehicle body 1, and a large-item drawer 16 and multiple measuring tool layer drawers 17 are provided on the side of the vehicle body 1 adjacent to the armrest 12. The large-item drawer 16 is located below the multiple measuring tool layer drawers 17. The large-item drawer 16 and the measuring tool layer drawer 17 are used to store measuring tools, teaching case parts and measuring instruments respectively, which is convenient for taking them out when used. A part placement slot 6 for placing parts is provided on the other side of the vehicle body 1, which is convenient for placing temporary parts during operation.

[0036] The height gauge device 5 includes a digital micrometer and an adjustment support. The digital micrometer is installed on the adjustment support. A three-dimensional detection part 3 is arranged below the digital micrometer. The upper surface of the marble workbench 2 is provided with a first mounting hole for installing the adjustment support. By fixing the digital micrometer on the adjustment support and adjusting the installation height of the digital micrometer, it is convenient to measure the outer diameter of the three-dimensional detection part 3.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool cart for tolerance and measurement teaching, characterized by: The invention comprises a vehicle body (1), wherein a marble workbench (2) is fixed on the upper surface of the vehicle body (1), and a detection case part (10) and a three-dimensional detection part (3) are detachably mounted on the upper surface of the marble workbench (2), and two positioning mechanisms (11) having a magnetic adsorption function and used for quickly positioning the three-dimensional detection part (3) and the detection case part (10) are mounted on the marble workbench (2), a detection mechanism for measuring the detection case part (10) is arranged on one side of the detection case part (10), and a height gauge device (5) for measuring the three-dimensional detection part (3) is arranged on one side of the three-dimensional detection part (3), a concentric detection device (7) is mounted on one side of the height gauge device (5), and an axis detection part (73) is mounted on the concentric detection device (7); A flexible rod (4) is installed at a corner of the upper surface of the marble workbench (2), and a high-definition camera (18) is installed at one end of the flexible rod (4).

2. A tolerance and measurement teaching tool cart according to claim 1, characterized in that: The positioning mechanism (11) includes a bidirectional screw rod (111) and a magnetic block (114) embedded in the upper surface of the marble workbench (2), the two ends of the bidirectional screw rod (111) are threadedly connected to the first positioning plate (113), the magnetic block (114) is located between the two first positioning plates (113), and a sliding groove (112) for the bidirectional screw rod (111) to be rotatably installed and the first positioning plate (113) to slide is provided inside the marble workbench (2), one end of the bidirectional screw rod (111) passes through one side of the marble workbench (2) and is installed with an adjustment handle (15), a second positioning plate (115) is provided on the side of the magnetic block (114) adjacent to the first positioning plate (113), and the second positioning plate (115) is fixed on the upper surface of the marble workbench (2).

3. The tolerance and measurement teaching tool cart according to claim 2, characterized in that: The installation directions of the two positioning mechanisms (11) are arranged in parallel, a scale line (116) is provided on one side of the slide groove (112), and the upper surface of the magnetic block (114) is flush with the upper surface of the marble workbench (2).

4. The tolerance and measurement teaching tool cart according to claim 3, characterized in that: The detection mechanism comprises linear guide rails (8) mounted on adjacent two side edges of the upper surface of a marble workbench (2), wherein the two linear guide rails (8) are vertically arranged, and a first measuring assembly (13) is slidably mounted on the linear guide rails (8), and the two first measuring assemblies (13) are located above the detection case part (10).

5. The tolerance and measurement teaching tool cart according to claim 4, characterized in that: The concentricity detection device (7) comprises a second measuring component (14) and a parts mounting mechanism fixed on the upper surface of a marble workbench (2), wherein the second measuring component (14) is mounted on one of the linear guide rails (8).

6. The tolerance and measurement teaching tool cart according to claim 5, characterized in that: The parts installation mechanism comprises a bottom plate (75), a base (71) is fixed on the upper surface of the bottom plate (75), a pressing plate (72) is installed on the base (71), a mounting shaft (74) for inserting a shaft detection part (73) is installed below the pressing plate (72), and the pressing plate (72) contacts the surface of the shaft detection part (73).

7. The tolerance and measurement teaching tool cart according to claim 6, characterized in that: The first measuring assembly (13) and the second measuring assembly (14) both comprise a meter suction workbench (9) slidably mounted on a linear guide rail (8), and a dial indicator (19) is mounted on the meter suction workbench (9) via a universal arm.

8. The tolerance and measurement teaching tool cart according to claim 1, characterized in that: An armrest (12) is installed on one side of the vehicle body (1), and a large item drawer (16) and a plurality of measuring tool layer drawers (17) are provided on a side of the vehicle body (1) adjacent to the armrest (12), wherein the large item drawer (16) is located below the plurality of measuring tool layer drawers (17).

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