Digital display depth caliper for measuring small hole groove
By designing a digital depth caliper that includes a point probe assembly and electronic components, the problem of measuring the inner diameter groove of a 6 mm inner hole was solved, and accurate measurement of the inner hole groove was achieved.
Patent Information
- Application Number
- CN202423258602.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing digital depth calipers cannot effectively measure the position and width of grooves in 6 mm inner diameter holes.
A measuring device consisting of a point probe assembly, a measuring rod, a column base, a main scale assembly, and a scale frame assembly was designed. It utilizes a spherical ruby point probe and electronic components to achieve precise measurement of internal hole grooves. Combined with threaded connections and adhesive fixation, the measurement accuracy is ensured.
It enables accurate measurement of the position and width of an inner groove with an inner diameter of 6 mm, solving the problem that is difficult to measure in existing technologies.
Smart Images
Figure CN224018948U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the measuring technical field, especially to the inner hole groove measuring technical field. BACKGROUND
[0002] The inner hole groove measurement is a difficult problem in measurement, especially the measurement of the inner hole groove with the inner diameter of 6mm, and the existing various digital depth calipers cannot measure. SUMMARY
[0003] The utility model relates to a kind of new measuring devices, can realize the position and width measurement of the inner hole groove with the inner diameter of 6mm.
[0004] A kind of digital depth caliper for measuring small hole groove is composed of point probe assembly (1), measuring rod (2), column seat (3), main ruler assembly (4) and ruler frame assembly (5), characterized in that the measuring rod is fastened on the ruler frame (5-2) in the ruler frame assembly (5-1) by screw, the ruler frame assembly is sleeved on the main ruler assembly, the main ruler assembly is inserted into the rectangular slot of column seat, the measuring rod is inserted into the round hole of column seat, and the external thread on the point probe is screwed into the hole of the internal thread on the measuring rod;The point probe assembly is composed of point probe seat (1-1), point probe rod (1-2) and point probe (1-3), the point probe is bonded on the point probe rod by adhesive, and the point probe rod is bonded in the small hole of the point probe seat by adhesive;The measuring rod has screw holes connected with the measuring frame and screw holes connected with the point probe assembly;The ruler frame has a round hole C for the measuring rod to pass through and a rectangular hole D for inserting the main ruler;The main ruler assembly is composed of main ruler (4-1) and fixed grid (4-2), the main ruler has a slot avoiding the measuring rod and a slot cooperating with the fixed grid, and the fixed grid is glued in the slot of the main ruler;The ruler frame assembly is composed of electronic component board (5-1), ruler frame (5-2) and knurled screw (5-3), the electronic component board and the ruler frame are integrated by screw, the knurled screw is screwed in the screw hole of the ruler frame to fix the ruler frame assembly on the main ruler;The electronic component board is composed of plastic shell and electronic components, the electronic components are composed of moving grid, sensor and display part, and the ruler frame assembly has the same structure and principle as the original digital caliper. BRIEF DESCRIPTION OF DRAWINGS
[0005] Figure 1 It is the sectional view of the measured part
[0006] In the figure, the inner hole of the measured part is φ6, and the dimensions X and B need to be measured.
[0007] Figure 2 It is the front view of the utility model
[0008] In the figure, point probe assembly.1, measuring rod.2, main ruler seat.3, main ruler.4, ruler frame assembly.5.
[0009] Figure 3 is the enlarged view of the point probe assembly.1 in the utility model
[0010] In the drawing, the point probe seat.1-1, the point probe rod.1-2, the point probe.1-3; the point probe is a spherical ruby, the spherical ruby has a hole, the ruby is adhered to the point probe rod by adhesive, the point probe rod is adhered in the hole of the point probe seat by adhesive; the ruby has high hardness and is wear-resistant.
[0011] Figure 4 is the front view of the new measuring rod.2 in the utility model
[0012] In the drawing, the upper part has a screw hole connected with the ruler frame assembly.5, and the lower part has a screw hole connected with the point probe assembly.1;
[0013] Figure 5 is the top view of the main ruler seat.3 in the utility model
[0014] Figure 6 is the A-A sectional view of Figure 5
[0015] In the drawing, the main ruler seat.3 has a circular hole C for the measuring rod to pass through and a rectangular hole D for inserting the main ruler;
[0016] Figure 7 is the front view of the main ruler assembly.4 in the utility model
[0017] Figure 8 is the top view of Figure 7
[0018] Figure 8 In the drawing, the main ruler.4-1, the fixed grid.4-2, the main ruler has a groove avoiding the measuring rod.2 on the upper part of the drawing, and has a groove cooperating with the fixed grid on the lower part of the drawing, and the fixed grid is adhered in the groove of the main ruler by adhesive;
[0019] Figure 9 is the front view of the ruler frame assembly.5 in the utility model
[0020] Figure 10 is the B-B sectional view of Figure 9
[0021] In the drawing, the electronic component plate.5-1, the ruler frame.5-2 has a groove cooperating with the electronic component plate on the lower part of the drawing, and the electronic component plate and the ruler frame are connected into an integral whole by screws, and the knurled screw.5-3 is used for fixing the ruler frame assembly.5; the electronic component plate is composed of a plastic shell and electronic components, the electronic components include a moving grid, a sensor and a display part, and the ruler frame assembly.5 is completely same as the structure and principle of the original digital caliper. DETAILED DESCRIPTION
[0022] The utility model is used for measuring, for example Figure 1 The measured part is shown, and the inner hole of the measured part is φ6, and the dimensions X and B need to be measured;
[0023] The utility model discloses a point measuring head assembly, a measuring rod, a column seat, a main ruler assembly and a ruler frame assembly, the measuring rod is fastened on the ruler frame in the ruler frame assembly with screw, the ruler frame assembly is sleeved on the main ruler assembly, the main ruler assembly is inserted into the rectangular slot of column seat, the measuring rod is inserted into the round hole of column seat, and the external thread on the point measuring head is screwed in the hole of internal thread on the measuring rod. The point measuring head assembly is composed of a point measuring head seat, a point measuring head rod and a point measuring head, the point measuring head is bonded on the point measuring head rod with adhesive, and the point measuring head rod is bonded in the small hole of the point measuring head seat with adhesive. The measuring rod has a screw hole connected with the measuring frame and a screw hole connected with the point measuring head assembly at the lower part. The middle of the ruler frame assembly has a round hole C for the measuring rod to pass through and a rectangular hole D for the main ruler to be inserted into. The main ruler assembly is composed of a main ruler and a fixed grid, the main ruler has a groove avoiding the measuring rod and a groove matched with the fixed grid, and the fixed grid is glued in the groove of the main ruler. The ruler frame assembly is composed of an electronic component board, a ruler frame and a knurled screw, the electronic component board and the ruler frame are integrated by screw, and the knurled screw is screwed in the screw hole of the ruler frame to fix the ruler frame assembly on the main ruler. The electronic component board is composed of a plastic shell and electronic components, the electronic components are composed of a movable grid, a sensor and a display part, and the ruler frame assembly has the same structure and principle as the original digital caliper. During measurement, the measuring rod and the point measuring head assembly are inserted into the hole of the measured part, the position of the point measuring head assembly is adjusted up and down and left and right, the point of the point measuring head assembly is located in the groove of the measured part, the point measuring head is moved up and down to make the point measuring head contact the upper part and the lower part of the groove respectively, and the X value and the B value of the groove are calculated through digital measurement.
Claims
1. A digital depth caliper for measuring small hole grooves, comprising a point measuring head assembly (1), a measuring rod (2), a column base (3), a main scale assembly (4), and a scale frame assembly (5), characterized in that, The measuring rod is fastened to the ruler frame (5-2) in the ruler frame assembly (5) with screws. The ruler frame assembly is fitted onto the main ruler assembly. The main ruler assembly is inserted into the rectangular groove of the column base. The measuring rod is inserted into the round hole of the column base. The external thread of the point measuring head is screwed into the hole of the internal thread on the measuring rod. The point measuring head assembly consists of a point measuring head seat (1-1), a point measuring head rod (1-2), and a point measuring head (1-3). The point measuring head is bonded to the point measuring head rod with adhesive. The point measuring head rod is bonded to the small hole of the point measuring head seat with adhesive. The measuring rod has a screw hole for connecting to the measuring frame and a screw hole for connecting to the point measuring head assembly at the bottom. The ruler frame has a round hole C in the middle for the measuring rod to pass through and a hole for... The main scale is inserted into a rectangular hole D; the main scale assembly consists of a main scale (4-1) and a fixed grid (4-2). The main scale has a groove to avoid the measuring rod and a groove to cooperate with the fixed grid. The fixed grid is glued into the groove of the main scale; the scale frame assembly consists of an electronic component board (5-1), a scale frame (5-2), and knurled screws (5-3). The electronic component board and the scale frame are connected as one piece by screws. The knurled screws are screwed into the screw holes of the scale frame to fix the scale frame assembly to the main scale; the electronic component board consists of a plastic shell and electronic components. The electronic components consist of a moving grid, a sensor, and a display part. The scale frame assembly is completely the same in structure and principle as the original digital caliper.