Thickness measuring device for mechanical manufacturing

Abstract

The invention discloses a thickness measuring device for mechanical manufacturing, which comprises a measuring assembly and an auxiliary assembly, and is characterized in that the measuring assembly comprises a measuring tube, fixing plates symmetrically arranged on two sides of the measuring tube, a fixing rod rotationally mounted at the lower end of the fixing plate on one side, and a sliding groove formed in the side, close to the fixing rod, of the measuring tube; the auxiliary assembly comprises a grip arranged in the middle of the outer side of the fixing plate on the other side and round level bubbles arranged at the upper end and the lower end of the grip. The measuring tape rolls are symmetrically arranged at the upper end and the lower end of the measuring tube. The movable measuring mechanism is installed in the sliding groove. The adjusting mechanism is arranged at the lower end of the measuring tube and connected with the movable measuring mechanism in an engaged mode. The bubble level is fixedly installed in the middle of the fixing plate, and the control panel is arranged at the upper end of the fixing plate. The thickness measuring device is low in manufacturing cost and simple to use, can judge the posture of a measured workpiece, has the advantages of convenience in thickness measurement, high thickness measurement efficiency and high thickness measurement accuracy, has multiple functions, and improves the use diversity of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness measuring equipment, and particularly relates to a thickness measuring device for mechanical manufacturing. Background Art

[0002] Thickness measurement is a means of detecting and inspecting parts in the field of mechanical processing. Thickness measurement can ensure the product quality of parts, ensure reasonable assembly and use, and can also detect parts with unqualified processing quality to ensure the ex-factory quality of parts.

[0003] In the prior art, thickness measurement is mainly carried out by an operator holding a measuring tool, such as a vernier caliper and a tape measure, etc. However, when using a hand-held measuring tool to measure the thickness of a part, it is impossible to accurately control whether the measuring instrument is perpendicular when measuring the workpiece, which easily leads to measurement errors. At the same time, when measuring, it is necessary to manually lock the position of the measuring scale of the measuring instrument and take readings. Hand shaking and different viewing angles will affect the readings, resulting in measurement errors. And the existing devices can only simply measure the thickness, cannot judge whether the measured workpiece is placed flat and meets the measurement requirements, nor can they measure size data such as the length of the workpiece, with a small scope of application and poor practicability.

[0004] Therefore, in order to solve the above problems, this paper proposes a thickness measuring device for mechanical manufacturing. Summary of the Invention

[0005] The purpose of the present invention is to design and manufacture a thickness measuring device for mechanical manufacturing with low manufacturing cost, simple use, which can judge the posture of the measured workpiece, can perform accurate measurement and reading, and at the same time has multiple functions to improve the diversity of the device use.

[0006] To achieve the above technical effects, the present invention is realized through the following technical solutions: A thickness measuring device for mechanical manufacturing, including a measuring component and an auxiliary component, characterized in that: the measuring component includes a measuring tube, fixing plates symmetrically arranged on both sides of the measuring tube, a fixing rod rotatably installed at the lower end of one of the fixing plates, a chute arranged on the side of the measuring tube close to the fixing rod, tape rollers symmetrically arranged at the upper and lower ends of the measuring tube, a moving measuring mechanism installed inside the chute, and an adjusting mechanism arranged at the lower end of the measuring tube and meshed with the moving measuring mechanism; the auxiliary component includes a grip arranged in the middle on the outer side of the other fixing plate, circular spirit levels arranged at the upper and lower ends of the grip, a bubble level fixedly installed in the middle of the fixing plate, and a control panel arranged at the upper end of the fixing plate.

[0007] Further, a scale is arranged on the surface of the fixing plate.

[0008] Further, the mobile measurement mechanism includes a rotary screw rotatably installed inside the measurement tube, a screw sleeve meshed with the rotary screw, a bearing fixedly installed on the outer wall of the screw sleeve, a lifting sleeve fixedly connected to the outer wall of the bearing, a moving block fixedly installed on the outer side of the lifting sleeve, a moving rod rotatably connected to the lower end of the moving block, a scale needle arranged at the bottom end of the moving rod, a magnifying glass fixedly installed at the upper end of the scale needle, a limiting protrusion arranged at the side end of the moving block, and a laser distance measurement receiving plate fixedly installed on the outer side of the bottom end of the moving rod; the moving block is slidably installed inside the chute; the laser distance measurement receiving plate is electrically connected to the control panel.

[0009] Further, a laser distance measurement transmitter is arranged on the outer side of the bottom end of the fixed rod; the laser distance measurement transmitter is collinear with the laser distance measurement receiving plate; the two side walls of the fixed rod and the moving rod are respectively coplanar; the laser distance measurement transmitter is electrically connected to the control panel.

[0010] Further, positioning columns are arranged on the opposite surfaces of the fixed rod and the moving rod; the rotation angle range of the fixed rod and the moving rod is 0 to 90 degrees; when the rotation angle of the fixed rod and the moving rod is 0, the fixed rod and the moving rod are both completely received into the fixed plate; when the rotation angle of the fixed rod and the moving rod is 90 degrees, the opposite surfaces of the fixed rod and the moving rod are parallel, and at this time the positioning columns are collinear.

[0011] Further, the adjusting mechanism includes an adjusting box fixedly installed at the lower end of the measurement tube, a first bevel gear rotatably installed inside the adjusting box, a second bevel gear fixedly installed at the bottom end of the rotary screw and meshed with the first bevel gear, and an adjusting knob rotatably connected to the side end of the adjusting box, and one end of the adjusting knob is fixedly connected to the first bevel gear.

[0012] Further, the control panel includes a display screen, control buttons, a voice announcer, a storage battery, a central processing unit, and an input / output module; the display screen, control buttons, voice announcer, and storage battery are all electrically connected to the central processing unit through the input / output module.

[0013] The beneficial effects of the present invention are as follows:

[0014] The overall structure of the present invention is simple and the manufacturing cost is low; by setting the fixed rod, the mobile measurement mechanism and the adjusting mechanism, the mobile measurement mechanism can be driven to move by operating the adjusting mechanism, so that the moving rod of the mobile measurement mechanism moves quickly, and the workpiece to be measured is clamped up and down in cooperation with the fixed rod to realize the thickness measurement of the workpiece. The thickness measurement is convenient. With the cooperation of the laser distance measurement receiving plate and the laser distance measurement transmitter arranged, the thickness of the workpiece to be measured can be quickly read, and the thickness measurement efficiency is improved; by setting a scale on the surface of the fixed plate, a scale needle at the bottom end of the moving rod, and a magnifying glass at the upper end of the scale needle, the device can still magnify and measure the scale through the magnifying glass after the laser measurement fails, which is convenient for reading and improves the practicability of the device.

[0015] The present invention enables the device to detect the placement attitude of the workpiece to be measured and determine whether the workpiece is placed flat by setting a bubble level and a circular spirit level; at the same time, the device can also be used to detect the flatness and perpendicularity of the workpiece, improving the diversity of the device's use; by setting tape measures at the upper and lower ends of the measuring tube, the device can be used for measuring the length of the workpiece, enabling the device to have multiple functions.

[0016] The present invention has positioning columns on the opposite surfaces of the fixed rod and the movable rod, so that when the device is measuring thickness, it can be limited by the positioning columns to ensure that the clamping depths of the fixed rod and the movable rod on the workpiece to be measured are the same, avoiding measurement errors caused by different clamping depths resulting in the device tilting; at the same time, during measurement, the circular spirit level provided can be used to judge the perpendicularity of the device when clamping a horizontally placed workpiece, avoiding measurement errors caused by the device tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the overall structure of the present invention in another direction;

[0020] Figure 3 is a front view of the present invention;

[0021] Figure 4 is a side view of the present invention;

[0022] Figure 5 is the present invention Figure 3 magnified schematic diagram at A in;

[0023] Figure 6 is a schematic diagram of the internal structure of the present invention;

[0024] Figure 7 is the present invention Figure 6 magnified schematic diagram at B in.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Measuring tube; 2. Fixed plate; 3. Fixed rod; 31. Laser distance measuring transmitter; 32. Positioning column; 4. Chute; 5. Tape measure reel; 6. Mobile measuring mechanism; 61. Rotating screw; 62. Nut sleeve; 63. Lifting sleeve; 64. Moving block; 65. Moving rod; 66. Scale needle; 67. Magnifying glass; 68. Laser distance measuring receiving board; 7. Adjusting mechanism; 71. Adjusting box; 72. First helical gear; 73. Second helical gear; 74. Adjusting knob; 8. Grip; 9. Circular spirit level; 10. Bubble level; 11. Control panel. Specific implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Refer to Figures 1 to 7 As shown, a thickness measuring device for mechanical manufacturing includes a measuring component and an auxiliary component, and is characterized in that: the measuring component includes a measuring tube 1, fixed plates 2 symmetrically arranged on both sides of the measuring tube 1, a fixed rod 3 rotatably installed at the lower end of one of the fixed plates 2, a chute 4 arranged on the side of the measuring tube 1 close to the fixed rod 3, tape measure reels 5 symmetrically arranged at the upper and lower ends of the measuring tube 1, a mobile measuring mechanism 6 installed inside the chute 4, and an adjusting mechanism 7 arranged at the lower end of the measuring tube 1 and meshed with the mobile measuring mechanism 6. The auxiliary component includes a grip 8 arranged in the middle on the outer side of the other fixed plate 2, circular spirit levels 9 arranged at the upper and lower ends of the grip 8, a bubble level 10 fixedly installed in the middle of the fixed plate 2, and a control panel 11 arranged at the upper end of the fixed plate 2.

[0030] A scale is provided on the surface of the fixed plate 2. Visual comparison with the scale and laser distance measurement can be combined to improve the measurement accuracy; at the same time, the device can still perform measurements after the laser measurement fails, improving the practicality of the device.

[0031] The moving measurement mechanism 6 includes a rotary screw 61 rotatably installed inside the measurement tube 1, a nut sleeve 62 meshed with the rotary screw 61, a bearing fixedly installed on the outer wall of the nut sleeve 62, a lifting sleeve 63 fixedly connected to the outer wall of the bearing, a moving block 64 fixedly installed on the outer side of the lifting sleeve 63, and a moving rod 65 rotatably connected to the lower end of the moving block 64. The moving block 64 is slidably installed inside the chute 4. The moving measurement mechanism 6 can rotate the rotary screw 61 to drive the nut sleeve 62 to rotate and lift, thereby driving the lifting sleeve 63 to lift and further driving the moving rod 65 to move up and down. During this process, under the cooperation and limitation of the bearing and the moving block 64, the lifting sleeve 63 will not rotate with the nut sleeve 62 and only moves up and down.

[0032] A scale needle 66 is arranged at the bottom end of the moving rod 65, and a magnifying glass 67 is fixedly installed at the upper end of the scale needle 66. The position where the scale needle 66 is aligned with the scale is magnified by the magnifying glass 67 for easy reading. A laser ranging receiving plate 68 is fixedly installed on the outer side of the bottom end of the moving rod 65. The laser ranging receiving plate 68 is electrically connected to the control panel 11. A laser ranging transmitter 31 is arranged on the outer side of the bottom end of the fixed rod 3. The laser ranging transmitter 31 is electrically connected to the control panel 11. It cooperates with the laser ranging transmitter 31 to perform laser ranging. The two side walls of the fixed rod 3 and the moving rod 65 are coplanar respectively, ensuring that the fixed rod 3 and the moving rod 65 are in the same plane, meeting the requirement that when measuring, the fixed rod 3 and the moving rod 65 move in the same plane.

[0033] Positioning columns 32 are arranged on the opposite surfaces of the fixed rod 3 and the moving rod 64. When the device measures the thickness, it can be limited by the positioning columns 32 to ensure that the clamping depths of the fixed rod 3 and the moving rod 65 on the workpiece to be measured are the same, avoiding measurement errors caused by different clamping depths resulting in the inclination of the device.

[0034] The rotation angle range of the fixed rod 3 and the moving rod 65 is 0 to 90 degrees. When the rotation angle of the fixed rod 3 and the moving rod 65 is 0, the fixed rod 3 and the moving rod 65 are completely retracted into the fixed plate 2, enabling the device to be used for measuring the flatness of the workpiece and other functions when not measuring the thickness.

[0035] When the rotation angle of the fixed rod 3 and the moving rod 65 is 90 degrees, the opposite surfaces of the fixed rod 3 and the moving rod 65 are parallel. At this time, the positioning columns 32 on the fixed rod 3 and the moving rod 65 are collinear, and the laser ranging transmitter 31 and the laser ranging receiving plate 69 are collinear. When measuring, the positioning columns 32 on the fixed rod 3 and the moving rod 65 are collinear, achieving the effect of consistent clamping depth and improving the measurement accuracy.

[0036] The adjusting mechanism 7 includes an adjusting box 71 fixedly installed at the lower end of the measuring tube 1, a first bevel gear 72 rotatably installed inside the adjusting box 71, a second bevel gear 73 fixedly installed at the bottom end of the rotating screw 61 and meshed with the first bevel gear 72, and an adjusting knob 74 rotatably connected to the side end of the adjusting box 71. One end of the adjusting knob 74 is fixedly connected to the first bevel gear 72. By manually rotating the adjusting knob 74, the first bevel gear 72 can be driven to rotate, and then the second bevel gear 73 can be driven to rotate, so as to drive the rotating screw 61 to rotate, and further drive the moving rod 65 to move.

[0037] The control panel 11 includes a display screen, control buttons, a voice announcer, a storage battery, a central processing unit, and an input / output module; the display screen, control buttons, voice announcer, and storage battery are all electrically connected to the central processing unit through the input / output module.

[0038] Embodiment 2

[0039] The laser distance measuring transmitter 31 and the laser distance measuring receiving board 68 of the present invention are a conventional laser rangefinder and a reflector used in the existing mechanism for distance measurement; the reflector (laser distance measuring receiving board) can reflect the laser emitted by the laser rangefinder (laser distance measuring transmitter) into the receiver of the laser rangefinder.

[0040] The circular spirit level 9 of the present invention adopts an existing glass circular spirit level or a metal circular spirit level, specifically a glass circular spirit level of Ruiyu Technology brand, model 30X20X11MM, or a metal circular spirit level of Huide brand, model MC-2509.

[0041] The bubble level 10 of the present invention adopts an existing tubular bubble level, specifically a bubble level of wyler brand, model 166-030-121-002.

[0042] The present invention realizes controlling the rotation angle range of the fixed rod 3 and the moving rod 65 to be 0 to 90 degrees by arranging limit protrusions on the outer sides of the rotating ends of the fixed rod 3 and the moving rod 65.

[0043] The tape measure reel 5 of the present invention adopts an existing roll-shaped tape measure; the tape measure reel is placed flat at both ends of the measuring tube, and the diameter of the tape measure reel is smaller than the distance between the fixing plates on both sides of the measuring tube; so that the tape measure reel will not affect the placement of the fixing plates when the device is detecting the flatness of the workpiece, nor will it affect the placement when the device is detecting the perpendicularity of the workpiece.

[0044] The magnifying glass 67 of the present invention is directly opposite to the scale needle 66; it can magnify the alignment position of the scale needle 66, facilitating reading.

[0045] Embodiment 3

[0046] This embodiment describes a working condition of the device as follows:

[0047] When using the device to measure the thickness of a small workpiece, first place the fixed rod 3 and the moving rod 65 inside the fixed plate 2, place the device horizontally on the surface of the workpiece to be measured, and use the bubble level 10 in the middle of the fixed plate 2 to detect whether the workpiece is placed horizontally. If it is not horizontal, then continuously adjust the workpiece in coordination with the bubble level 10 until the bubble of the bubble level 10 reaches the central position to adjust the workpiece horizontally; at this time, measure the thickness of the workpiece. During the thickness measurement process, first, the fixed rod 3 and the moving rod 65 need to be opened to the maximum angle so that the opposite surfaces of the fixed rod 3 and the moving rod 65 are parallel. Then, the upper surface of the fixed rod 3 is attached to the lower (upper) surface of the workpiece, and the positioning column 32 is attached to the side wall of the workpiece. The user holds the handle 8 with one hand to stably fix the device on the surface of the workpiece, and operates the adjusting knob 74 of the adjusting mechanism 7 with the other hand to move the moving rod 65 downward to approach the upper (lower) surface of the workpiece. During this process, in coordination with the circular spirit levels 9 at the upper and lower ends of the handle 8, ensure that the bubble of the circular spirit level 9 is located at the center during the clamping process, ensure that the measuring direction of the device is perpendicular to the horizontal surface of the workpiece, and ensure the measurement accuracy. When the moving rod 65 clamps the upper (lower) surface of the workpiece downward, read the thickness data measured by the laser distance measuring transmitter 31 and the laser distance measuring receiving board 68 displayed on the control panel 11; at the same time, the user can also directly read the scale aligned by the scale needle 66 through the magnifying glass 67 and record the data; thus, the measurement can be completed.

[0048] Embodiment 4

[0049] This embodiment describes another working condition of the device as follows:

[0050] When using this device to measure the thickness of a large workpiece, first open the fixed rod 3 and the moving rod 65 to the maximum angle so that the opposite surfaces of the fixed rod 3 and the moving rod 65 are parallel. Then, attach the upper surface of the fixed rod 3 to the lower (upper) surface of the workpiece, and make the positioning post 32 fit against the side wall of the workpiece. The user holds the grip 8 with one hand to firmly fix the device on the surface of the workpiece, and operates the adjusting knob 74 of the adjusting mechanism 7 with the other hand to move the moving rod 65 downward to approach the upper (lower) surface of the workpiece. When the moving rod 65 approaches the upper (lower) surface of the workpiece, adjust the posture of the device so that the positioning post 32 on the moving rod 65 also fits against the same side wall of the workpiece, ensuring that the fixed rod 3 and the moving rod 65 are inserted into the workpiece with the same length to avoid measurement errors caused by device tilt. After the positioning posts 32 on the fixed rod 3 and the moving rod 65 both fit against the same side wall of the workpiece, continue to operate the adjusting knob 74 of the adjusting mechanism 7 to make the moving rod 65 continue to move downward to approach the upper (lower) surface of the workpiece until the moving rod 65 clamps the upper (lower) surface of the workpiece downward. At this time, read the thickness data measured by the laser distance measuring transmitter 31 and the laser distance measuring receiving board 68 displayed on the control panel 11; at the same time, the user can also directly read the scale aligned by the scale needle 66 through the magnifying glass 67 and record the data; thus, the measurement is completed.

[0051] Embodiment 5

[0052] Other functions of the device are described in this embodiment as follows:

[0053] This device is equipped with circular spirit levels 9 at the upper and lower ends of the grip 8, enabling the device to perform quality inspection on workpieces with mutually perpendicular angles; by attaching the tape roll 5 at the lower end of the device to the horizontal plane of the workpiece and the side fixing plate 2 of the fixed rod 3 to the vertical plane of the workpiece, the position of the bubble in the circular spirit level 9 is used to determine whether the device is vertical;

[0054] In the present invention, a bubble level 10 is provided in the middle of the fixing plate 2, enabling the device to be used to detect the flatness of the workpiece; by placing the fixed rod 3 and the moving rod 65 inside the fixing plate 2 and attaching the side fixing plate 2 of the fixed rod 3 to the surface of the workpiece, the fitting length of the fixing plate 2 and the position of the bubble in the bubble level 10 are used to determine whether the device is horizontal;

[0055] In the present invention, tape rolls 5 are provided at the upper and lower ends of the measuring tube 1, enabling the device to measure the length of the workpiece;

[0056] In summary, the present invention integrates multiple functions, and has the advantages of simple structure, simple operation, and strong practicability.

Claims

1. A thickness measuring device for mechanical manufacturing, comprising a measuring component and an auxiliary component, characterized in that: The measurement component includes a measurement tube, fixed plates symmetrically arranged on both sides of the measurement tube, a fixed rod rotatably installed at the lower end of one fixed plate, a chute arranged on the side of the measurement tube close to the fixed rod, tape rollers symmetrically arranged at the upper and lower ends of the measurement tube, a mobile measurement mechanism installed inside the chute, and an adjustment mechanism arranged at the lower end of the measurement tube and meshed with the mobile measurement mechanism. The auxiliary component includes a handle arranged in the middle on the outer side of the other fixed plate, circular spirit levels arranged at the upper and lower ends of the handle, a bubble level fixedly installed in the middle of the fixed plate, and a control panel arranged at the upper end of the fixed plate.

2. The thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, A scale is arranged on the surface of the fixed plate.

3. The thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, The mobile measurement mechanism includes a rotating screw rod rotatably installed inside the measurement tube, a screw sleeve meshed with the rotating screw rod, a bearing fixedly installed on the outer wall of the screw sleeve, a lifting sleeve fixedly connected to the outer wall of the bearing, a moving block fixedly installed on the outer side of the lifting sleeve, a moving rod rotatably connected to the lower end of the moving block, a scale needle arranged at the bottom end of the moving rod, a magnifying glass fixedly installed at the upper end of the scale needle, and a laser distance measurement receiving board fixedly installed on the outer side of the bottom end of the moving rod. The moving block is slidably installed inside the chute. The laser distance measurement receiving board is electrically connected to the control panel.

4. A thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, A laser distance measurement transmitter is arranged on the outer side of the bottom end of the fixed rod. The two side walls of the fixed rod and the moving rod are respectively coplanar. The laser distance measurement transmitter is electrically connected to the control panel.

5. The thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, Positioning columns are arranged on the opposite surfaces of the fixed rod and the moving rod. The rotation angle range of the fixed rod and the moving rod is 0 to 90 degrees. When the rotation angle of the fixed rod and the moving rod is 0, both the fixed rod and the moving rod are completely received into the fixed plate. When the rotation angle of the fixed rod and the moving rod is 90 degrees, the opposite surfaces of the fixed rod and the moving rod are parallel. At this time, the positioning columns on the fixed rod and the moving rod are collinear, and the laser distance measurement transmitter and the laser distance measurement receiving board are collinear.

6. The thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, The adjustment mechanism includes an adjustment box fixedly installed at the lower end of the measurement tube, a first bevel gear rotatably installed inside the adjustment box, a second bevel gear fixedly installed at the bottom end of the rotating screw rod and meshed with the first bevel gear, and an adjustment knob rotatably connected to the side end of the adjustment box. One end of the adjustment knob is fixedly connected to the first bevel gear.

7. The thickness measuring device for mechanical manufacturing according to claim 1, characterized in that, The control panel includes a display screen, control buttons, a voice announcer, a storage battery, a central processing unit, and an input / output module. The display screen, control buttons, voice announcer, and storage battery are all electrically connected to the central processing unit through the input / output module.

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