CN220931926U - A mandrel dimension measuring instrument - Google Patents

Abstract

The utility model discloses a mandrel size measuring instrument, which relates to the technical field of mandrels, and comprises a support plate, a first fixed block is fixedly connected to the top of the support plate, a moving groove is opened on the top of the support plate, and a moving block is slidably arranged on the inner wall of the moving groove, a first movable block is fixedly connected to the top of the moving block, a contraction spring is fixedly connected between the moving block and the moving groove, a through opening is opened on one side of the first movable block, a first scale is fixedly connected to the side of the first fixed block close to the first movable block, and the first scale passes through the through opening. The utility model has the advantage of being easy to measure the mandrel size.

Description

A mandrel dimension measuring instrument

Technical Field

The utility model relates to the technical field of mandrels, in particular to a mandrel size measuring instrument.

Background technique

Fixed mandrels have different structures, different forces, and different gear fits. The installation methods are also different. There are generally two types of fits: sliding fit and interference fit. Sliding fit: For example, for sliding gears, align the shaft to the position and angle and then gently push it in. Interference fit: When the interference is small, you can use a heavy hammer to hit the shaft end to drive the shaft in. Before hitting, cover the shaft end with other objects to avoid damaging the shaft end. When the mandrel is being processed, its size needs to be measured, and then the mandrel size measuring instrument is needed.

Currently, the existing mandrel size measuring instrument usually includes a caliper, and the staff uses the caliper to measure the diameter of the mandrel.

However, similar to the above-mentioned mandrel dimension measuring instrument, when measuring, the staff is required to clamp the caliper on the mandrel surface, which is a cumbersome operation and greatly reduces the measurement efficiency of the mandrel dimension.

Utility Model Content

The utility model aims to solve the shortcomings of the prior art and proposes a mandrel size measuring instrument, which has the advantage of being easy to measure the mandrel size.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A core shaft size measuring instrument comprises a support plate, a first fixed block is fixedly connected to the top of the support plate, a movable groove is opened on the top of the support plate, and a movable block is slidably arranged on the inner wall of the movable groove, a first movable block is fixedly connected to the top of the movable block, a contraction spring is fixedly connected between the movable block and the movable groove, a through opening is opened on one side of the first movable block, a first scale is fixedly connected to the side of the first fixed block close to the first movable block, and the first scale passes through the through opening.

The utility model is further configured such that a handle is fixedly connected to one side of the first movable block.

The utility model is further configured as follows: a connecting plate is fixedly connected to one side position of the top of the support plate, a fixed plate is provided on one side of the connecting plate, a sliding rod is fixedly connected to one side of the fixed plate, a second fixed block and a second movable block are slidably provided on the outer wall of the sliding rod, a second scale is fixedly connected to one side of the fixed plate, a connecting port is opened on one side of the second fixed block and the second movable block, and the second scale passes through the connecting port.

The utility model is further configured that one side of the sliding rod is fixedly connected to a limiting plate.

The utility model is further configured such that a mounting groove is opened on one side of the connecting plate, and the top inner wall and the bottom inner wall of the mounting groove are rotatably connected with the same threaded screw, and a slider is provided on the outer wall of the threaded screw through threaded sliding, and the slider is fixedly connected to the fixed plate.

The utility model is further configured that the top of the support plate is rotatably connected with a knob, and the knob is fixedly arranged between the threaded screw rod.

The utility model is further configured that one end of the connecting plate is fixedly connected to a third scale.

The beneficial effects of the utility model are:

When measuring the diameter of the mandrel, the mandrel size measuring instrument first pulls the first movable block to separate the first movable block from the first fixed block, and then places the bottom of the mandrel between the first movable block and the first fixed block. At this time, the first movable block is released, and the first movable block is driven to move toward the first fixed block under the elastic force of the contraction spring, thereby driving the first scale to move in the through opening. When the first movable block is stationary, the diameter of the mandrel can be observed through the first scale. The operation is simple, and the purpose of facilitating the measurement of the mandrel diameter is achieved.

The mandrel dimension measuring instrument moves the second fixed block and the second movable block under the action of the sliding rod while measuring, so that the second fixed block and the second movable block fit with the top of the mandrel. At this time, the diameter of the top of the mandrel can be observed through the second scale.

When measuring mandrels of different heights, the mandrel size measuring instrument can rotate the threaded screw to drive the slider to move in the installation groove, and then drive the fixed plate to move, so as to achieve the purpose of adjusting the position of the second scale, thereby facilitating the measurement of mandrels of different heights.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of a mandrel dimension measuring instrument proposed by the present invention;

FIG2 is a partial three-dimensional structural schematic diagram of a movable block and a contraction spring of a mandrel size measuring instrument proposed by the present invention;

FIG3 is a partial three-dimensional structural diagram of a second movable block and a second fixed block of a mandrel dimension measuring instrument proposed by the present invention;

FIG4 is a partial front cross-sectional structural diagram of a connecting plate and a third scale of a mandrel size measuring instrument proposed by the present invention.

In the figure: 1. support plate; 2. connecting plate; 3. knob; 4. first fixed block; 5. first movable block; 6. first scale; 7. moving slot; 8. second fixed block; 9. moving block; 10. contraction spring; 11. handle; 12. second movable block; 13. second scale; 14. sliding rod; 15. limit plate; 16. threaded screw; 17. slider; 18. fixed plate; 19. third scale.

Detailed ways

The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

Referring to Figures 1-4, a core shaft size measuring instrument includes a support plate 1, the top of the support plate 1 is connected to a first fixed block 4 by bolts, the top of the support plate 1 is provided with a movable groove 7, and the inner wall of the movable groove 7 is slidably provided with a movable block 9, the top of the movable block 9 is connected to a first movable block 5 by bolts, a contraction spring 10 is connected between the movable block 9 and the movable groove 7 by bolts, a through opening is provided on one side of the first movable block 5, and a first scale 6 is connected to the side of the first fixed block 4 close to the first movable block 5 by bolts, and the first scale 6 passes through the through opening.

Specifically, a handle 11 is connected to one side of the first movable block 5 via bolts, and the handle 11 is used to facilitate pulling the first movable block 5 .

Specifically, a connecting plate 2 is connected to one side of the top of the support plate 1 by bolts, a fixed plate 18 is provided on one side of the connecting plate 2, a sliding rod 14 is connected to one side of the fixed plate 18 by bolts, a second fixed block 8 and a second movable block 12 are slidably provided on the outer wall of the sliding rod 14, a second scale 13 is connected to one side of the fixed plate 18 by bolts, a connecting port is provided on one side of the second fixed block 8 and the second movable block 12, the second scale 13 passes through the connecting port, and the diameter of the top of the core shaft is conveniently measured by using the second fixed block 8, the second movable block 12 and the second scale 13.

Specifically, one side of the sliding rod 14 is connected to a limiting plate 15 by means of bolts, and the limiting plate 15 is used to prevent the second movable block 12 and the second fixed block 8 from being separated from the sliding rod 14 .

Specifically, a mounting groove is opened on one side of the connecting plate 2, and the top inner wall and the bottom inner wall of the mounting groove are rotatably connected with the same threaded screw 16, and the outer wall of the threaded screw 16 is provided with a slider 17 through threaded sliding, and the slider 17 is connected to the fixed plate 18 by bolts. By rotating the threaded screw 16, the slider 17 is driven to move in the mounting groove, and then the fixed plate 18 is driven to move, so as to adjust the measuring position of the top of the core shaft.

Specifically, the top of the support plate 1 is rotatably connected with a knob 3 , and the knob 3 is fixedly arranged with the threaded screw 16 . The threaded screw 16 can be rotated conveniently by using the knob 3 .

Specifically, one end of the connecting plate 2 is connected to the third scale 19 by bolts. When the diameter of the core shaft is measured, the second movable block 12 is fitted with the second fixed block 8 so that the top of the core shaft contacts the bottom of the second movable block 12 and the second fixed block 8. At this time, the height of the core shaft can be observed through the third scale 19.

Working principle: When measuring the diameter of the core shaft, first pull the first movable block 5 to separate the first movable block 5 from the first fixed block 4, and then place the bottom of the core shaft between the first movable block 5 and the first fixed block 4. At this time, release the first movable block 5, and under the elastic force of the contraction spring 10, drive the first movable block 5 to move toward the first fixed block 4, and then drive the first scale 6 to move in the through opening. When the first movable block 5 is stationary, the diameter of the core shaft can be observed through the first scale 6. The operation is simple and the purpose of facilitating the measurement of the core shaft diameter is achieved.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (7)

1. A spindle dimension measuring instrument, characterized in that it comprises a support plate (1), a first fixed block (4) is fixedly connected to the top of the support plate (1), a movable groove (7) is opened on the top of the support plate (1), and a movable block (9) is slidably arranged on the inner wall of the movable groove (7), a first movable block (5) is fixedly connected to the top of the movable block (9), a contraction spring (10) is fixedly connected between the movable block (9) and the movable groove (7), a through opening is opened on one side of the first movable block (5), a first scale (6) is fixedly connected to the side of the first fixed block (4) close to the first movable block (5), and the first scale (6) passes through the through opening. 2. A mandrel dimension measuring instrument according to claim 1, characterized in that a handle (11) is fixedly connected to one side of the first movable block (5). 3. A core shaft size measuring instrument according to claim 1, characterized in that a connecting plate (2) is fixedly connected to a top side position of the support plate (1), a fixed plate (18) is provided on one side of the connecting plate (2), a sliding rod (14) is fixedly connected to one side of the fixed plate (18), a second fixed block (8) and a second movable block (12) are slidably provided on the outer wall of the sliding rod (14), a second scale (13) is fixedly connected to one side of the fixed plate (18), a connecting port is opened on one side of the second fixed block (8) and the second movable block (12), and the second scale (13) passes through the connecting port. 4. The spindle dimension measuring instrument according to claim 3, characterized in that a limiting plate (15) is fixedly connected to one side of the sliding rod (14). 5. A core shaft dimension measuring instrument according to claim 4, characterized in that a mounting groove is opened on one side of the connecting plate (2), and the top inner wall and the bottom inner wall of the mounting groove are rotatably connected with the same threaded screw (16), and the outer wall of the threaded screw (16) is provided with a slider (17) through threaded sliding, and the slider (17) is fixedly connected to the fixed plate (18). 6. A mandrel dimension measuring instrument according to claim 5, characterized in that a knob (3) is rotatably connected to the top of the support plate (1), and the knob (3) is fixedly arranged between the threaded screw (16). 7. A spindle dimension measuring instrument according to claim 6, characterized in that a third scale (19) is fixedly connected to one end of the connecting plate (2).