End face ring groove measuring instrument

Abstract

The utility model discloses an end face ring groove measuring instrument which comprises a caliper, the caliper comprises a caliper body, a fixed clamping foot and a movable clamping foot, the fixed clamping foot is fixed at one end of the caliper body, and the movable clamping foot is installed on the caliper body in a sliding mode. The device further comprises a first connecting block, a second connecting block, a first measuring head and a second measuring head. One end of the first connecting block is detachably connected with the bottom of the fixed clamping foot, the first connecting block can rotate on the fixed clamping foot, and the first measuring head is fixed at the other end of the first connecting block; one end of the second connecting block is detachably connected with the bottom of the movable clamping foot, the second connecting block can rotate on the movable clamping foot, and the second measuring head is fixed at the other end of the second connecting block; the dial indicator is fixed at the bottom of the movable clamping pin. The measuring instrument can be quickly operated and is low in manufacturing cost; the end face measuring instrument is convenient to assemble and disassemble, the original functions of the vernier caliper are not damaged, and the end face measuring instrument can be well popularized in the mechanical industry.

Description

Technical Field

[0001] The utility model relates to the field of inner diameter measuring instruments, in particular to an end face ring groove measuring instrument. Background Art

[0002] In the mechanical industry, vernier calipers are the most widely used. Vernier calipers can measure holes, lengths, grooves, groove depths, and other situations, and are used in many occasions. However, the measurement accuracy of vernier calipers is not high. When encountering some high-precision end face ring grooves, large measurement errors will occur. However, if an internal diameter gauge is used, interference will occur. To solve this problem, a measuring instrument needs to be designed to solve this problem.

[0003] The prior art with publication number CN 209559088 U discloses an inner diameter caliper, comprising a first caliper, wherein the first caliper is provided with a fixed jaw and a movable jaw, wherein the movable jaw can move along the first caliper and align with the scale marked on the first caliper; a measuring round rod is fixedly provided on the tip of the bottom of the fixed jaw, and a first probe is provided at one end of the measuring round rod; a second measuring gauge is fixedly provided on the tip of the bottom of the movable jaw, and a second probe is provided at one end of the second measuring gauge.

[0004] In the prior art, when measuring the inner diameter of a non-hollow part having an end face annular groove, the middle boss of the part blocks the measuring crossbar of the inner diameter gauge, making it difficult to measure the aperture of the annular groove. If a vernier caliper is used to measure the annular groove, the measurement accuracy cannot be achieved. Utility Model Content

[0005] In order to solve the problem of low efficiency and low precision in measuring the inner diameter of the end face groove of a part in the prior art, the utility model aims to provide an end face ring groove measuring instrument that can accurately and quickly measure the end face ring groove of a part.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an end face ring groove measuring instrument, comprising a caliper, wherein the caliper comprises a ruler body, a fixed foot and a movable foot, the fixed foot is fixed at one end of the ruler body, and the movable foot is slidably mounted on the ruler body; and further comprises a first connecting block, a second connecting block, a first measuring head and a second measuring head;

[0007] One end of the first connection block is detachably connected to the bottom of the fixed foot, the first connection block can rotate on the fixed foot, and the first measuring head is fixed to the other end of the first connection block;

[0008] One end of the second connection block is detachably connected to the bottom of the movable foot, the second connection block can rotate on the movable foot, and the second measuring head is fixed to the other end of the second connection block;

[0009] The dial indicator is fixed to the bottom of the moving clamping foot.

[0010] Preferably, it further comprises a first bracket, the first bracket is fixed to the bottom of the fixed foot, and the first connecting block is installed on the first bracket; the second bracket is fixed to the bottom of the movable foot, and the second connecting block is installed on the second bracket.

[0011] Preferably, the first bracket is provided with a first insertion hole and a first locking hole connected to the first insertion hole; the bottom of the fixed foot is plugged into the first insertion hole; the first bolt is threadedly connected to the first locking hole and is tightly pressed against the fixed foot.

[0012] Preferably, a first connecting hole is opened on the first bracket, a first stud is threadedly connected to the first connecting hole, a first threaded hole is arranged at the end of the first stud, the first connecting block is threadedly connected to the first threaded hole of the first stud through a second bolt, and the first connecting block is tightly pressed against the first stud.

[0013] Preferably, a locking nut is installed on the first stud.

[0014] Preferably, the second bracket is provided with a second insertion hole and a second locking hole connected to the second insertion hole; the bottom of the movable clamping foot is plugged into the second insertion hole; the third bolt is threadedly connected to the second locking hole and is tightly pressed against the fixed clamping foot.

[0015] Preferably, a second connecting hole is opened on the second bracket, a second stud is threadedly connected to the second connecting hole, a second threaded hole is arranged at the end of the second stud, the second connecting block is threadedly connected to the second threaded hole of the second stud through a fourth bolt, and the second connecting block is tightly pressed against the second stud.

[0016] Preferably, the dial indicator is mounted on the second bracket.

[0017] Preferably, the second bracket is provided with a third socket and a third locking hole connected to the third socket; one end of the dial indicator is plugged into the third socket, the fifth bolt is threadedly connected to the third threaded hole, and the fifth bolt abuts against the dial indicator.

[0018] Preferably, one end of the first measuring head is threadedly connected to the first connecting block, and the other end of the first measuring head is installed with a first steel ball; one end of the second measuring head is threadedly connected to the second connecting block, and the other end of the second measuring head is installed with a second steel ball.

[0019] The beneficial effects of the technical solution of the utility model are as follows: the solution is easy to implement and measure, and anyone who has used a vernier caliper and an internal diameter gauge can use it smoothly, and the manufacturing cost is low; the end surface measuring instrument is easy to assemble and disassemble, and does not destroy the original function of the vernier caliper, so it is very practical and can be well promoted in the machinery industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure diagram of the end face ring groove measuring instrument Figure 1 ;

[0021] Figure 2 The structure diagram of the end face ring groove measuring instrument Figure 2 ;

[0022] Figure 3 This is the exploded view of the end face ring groove measuring instrument;

[0023] Figure 4 A schematic diagram of measuring the end face ring groove using an end face ring groove measuring instrument;

[0024] Figure 5 is a structural schematic diagram of a first bracket;

[0025] Figure 6 Schematic diagram of the structure of the second bracket.

[0026] Figure numerals: 1. first steel ball; 2. first measuring head; 3. first stud; 4. locking nut; 5. first bracket; 6. dial indicator; 7. second bracket; 8. second stud; 9. second connecting block; 10. fourth bolt; 11. third bolt; 12. ruler; 13. fixed foot; 14. movable foot; 15. second measuring head; 16. second steel ball; 17. second bolt; 18. first connecting block; 21. first plug hole; 22. first locking hole; 23. first connecting hole; 24. second plug hole; 25. third plug hole; 26. third locking hole; 27. first bolt. DETAILED DESCRIPTION

[0027] 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example

[0032] like Figure 1-4 The end face ring groove measuring instrument shown includes a caliper, a first measuring head 2 and a second measuring head 15; the caliper includes a ruler body 12, a fixed foot 13 and a movable foot 14, the fixed foot 13 is fixed at one end of the ruler body 12, and the movable foot 14 is slidably mounted on the ruler body 12;

[0033] One end of the first connecting block 18 is detachably connected to the bottom of the fixed foot 13, the first connecting block 18 can rotate on the fixed foot 13, and the first measuring head 2 is fixed to the other end of the first connecting block 18; one end of the second connecting block 9 is detachably connected to the bottom of the movable foot 14, the second connecting block 9 can rotate on the movable foot 14, and the second measuring head 15 is fixed to the other end of the second connecting block 9;

[0034] The dial indicator is fixed to the bottom of the movable clamping foot 14; during measurement, the first measuring head 2 and the second measuring head 15 remain coaxial.

[0035] With such a setting, the scheme is easy to implement and measure. Anyone who has used a vernier caliper and an internal diameter gauge can use it smoothly, and the manufacturing cost is low. The end surface measuring instrument is easy to assemble and disassemble, and does not destroy the original function of the vernier caliper. It is very practical and can be well promoted in the machinery industry.

[0036] In this embodiment, a first bracket 5 is also included, the first bracket 5 is fixed to the bottom of the fixed foot 13, and the first connecting block 18 is installed on the first bracket 5; the second bracket 7 is fixed to the bottom of the movable foot 14, and the second connecting block 9 is installed on the second bracket 7. This arrangement facilitates the disassembly and assembly of the measuring instrument.

[0037] Further preferably, the first bracket 5 is provided with a first insertion hole 21 and a first locking hole 22 connected to the first insertion hole 21; the bottom of the fixed foot 13 is plugged into the first insertion hole 21, and the first bolt 27 is threadedly connected to the first locking hole 22 and is tightly pressed against the fixed foot 13. Such an arrangement enables the bracket to be disassembled from the caliper and assembled when needed, which can greatly improve the applicability of the instrument.

[0038] Further preferably, a first connecting hole 23 is opened on the first bracket 5, and a first stud 3 is threadedly connected to the first connecting hole 23. A first threaded hole is provided at the end of the first stud 3. The first connecting block 18 is threadedly connected to the first threaded hole of the first stud 3 through a second bolt 17, and the first connecting block 18 is tightly pressed against the end face of the first stud 3.

[0039] Further preferably, a locking nut 4 is mounted on the first stud 3. In this way, the connection length between the first stud 3 and the first bracket 5 can be controlled by the locking nut 4, thereby adjusting the position of the first measuring head 2 on the caliper.

[0040] Further preferably, the second bracket 7 is provided with a second insertion hole 24 and a second locking hole connected to the second insertion hole 24 ; the bottom of the movable clamping foot 14 is plugged into the second insertion hole 24 , the third bolt 11 is threadedly connected to the second locking hole, and is tightly pressed against the fixed clamping foot 13 .

[0041] Further preferably, a second connecting hole is opened on the second bracket 7, a second stud 8 is threadedly connected to the second connecting hole, a second threaded hole is provided at the end of the second stud 8, the second connecting block 9 is threadedly connected to the second threaded hole of the second stud 8 through a fourth bolt 8, and the second connecting block 9 is tightly pressed against the end face of the second stud 8.

[0042] In this embodiment, the dial gauge 6 is mounted on the second bracket 7. Specifically, the second bracket 7 is provided with a third insertion hole 25 and a third locking hole 26 connected to the third insertion hole 25. The connecting rod on the dial gauge 6 is plugged into the third insertion hole 25, and the fifth bolt is threadedly connected to the third locking hole 26, and the fifth bolt is tightly pressed against the connecting rod. In this way, the dial gauge 6 is detachably mounted on the caliper. Furthermore, the third insertion hole 25 is a round hole, and the dial gauge 6 can rotate on the second bracket 7.

[0043] like Figure 3 As shown, in this embodiment, one end of the first measuring head 2 is threadedly connected to the first connecting block 18, and the other end of the first measuring head 2 is installed with the first steel ball 1; one end of the second measuring head 15 is threadedly connected to the second connecting block 9, and the other end of the second measuring head 15 is installed with the second steel ball 16. Such an arrangement can better fit the inner wall of the end face ring groove of the part.

[0044] like Figure 3 As shown, the end face ring groove measuring instrument can use single-sided vernier calipers with specifications of 0-300mm, 0-500mm, etc. The foot of the vernier caliper is relatively long to facilitate the installation of the left and right brackets. When installing the dial indicator 6, pay attention to the direction. The dial of the dial indicator 6 must face the direction of the measurement personnel's line of sight to facilitate reading. The probe must be installed on the connecting block to ensure that the two measuring steel balls remain in the same straight line

[0045] The installed measuring instrument needs to be aligned with an outside micrometer. A certain pressure gauge is required, which is about 0.4-0.6mm. The needle is set to zero after aligning with the diameter of the ring groove to be measured. When measuring, the caliper is placed horizontally. First, let the measuring head at the movable dial be placed inside the ring groove, then slowly put it in, and then swing it slightly back and forth and left and right, and record the maximum value. The method of use is the same as the measurement method of the inside diameter gauge.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An end face ring groove measuring instrument, comprising a caliper, wherein: The caliper comprises a ruler body (12), a fixed foot (13) and a movable foot (14), wherein the fixed foot (13) is fixed to one end of the ruler body (12), and the movable foot (14) is slidably mounted on the ruler body (12); and is characterized in that it also comprises a first connecting block (18), a second connecting block (9), a first measuring head (2) and a second measuring head (15); One end of the first connecting block (18) is detachably connected to the bottom of the fixed foot (13); the first connecting block (18) is rotatable on the fixed foot (13); and the first measuring head (2) is fixed to the other end of the first connecting block (18); One end of the second connecting block (9) is detachably connected to the bottom of the movable foot (14); the second connecting block (9) is rotatable on the movable foot (14); and the second measuring head (15) is fixed to the other end of the second connecting block (9); The dial indicator (6) is fixed to the bottom of the movable clamping foot (14).

2. The end face ring groove measuring instrument according to claim 1, characterized in that: It also comprises a first bracket (5), the first bracket (5) being fixed to the bottom of the fixed foot (13), and the first connecting block (18) being mounted on the first bracket (5); the second bracket (7) being fixed to the bottom of the movable foot (14), and the second connecting block (9) being mounted on the second bracket (7).

3. The end face ring groove measuring instrument according to claim 2, characterized in that: The first bracket (5) is provided with a first insertion hole (21) and a first locking hole (22) connected to the first insertion hole (21); the bottom of the fixing foot (13) is plugged into the first insertion hole (21); and the first bolt (27) is threadedly connected to the first locking hole (22) and is tightly pressed against the fixing foot (13).

4. The end face ring groove measuring instrument according to claim 2, characterized in that: The first bracket (5) is provided with a first connection hole (23), a first stud (3) is threadedly connected to the first connection hole (23), a first threaded hole is provided at the end of the first stud (3), a first connection block (18) is threadedly connected to the first threaded hole of the first stud (3) via a second bolt (17), and the first connection block (18) is tightly abutted against the first stud (3).

5. The end face ring groove measuring instrument according to claim 4, characterized in that: A locking nut (4) is mounted on the first stud (3).

6. The end face ring groove measuring instrument according to claim 2, characterized in that: The second bracket (7) is provided with a second insertion hole (24) and a second locking hole connected to the second insertion hole (24); the bottom of the movable clamping foot (14) is plugged into the second insertion hole (24); the third bolt (11) is threadedly connected to the second locking hole and is tightly pressed against the fixed clamping foot (13).

7. The end face ring groove measuring instrument according to claim 2, characterized in that: The second bracket (7) is provided with a second connection hole, a second stud (8) is threadedly connected to the second connection hole, a second threaded hole is provided at the end of the second stud (8), the second connection block (9) is threadedly connected to the second threaded hole of the second stud (8) via a fourth bolt (10), and the second connection block (9) is tightly abutted against the second stud (8).

8. The end face ring groove measuring instrument according to claim 1, characterized in that: The dial indicator (6) is mounted on the second bracket (7).

9. The end face ring groove measuring instrument according to claim 8, characterized in that: The second bracket (7) is provided with a third insertion hole (25) and a third locking hole (26) connected to the third insertion hole (25); one end of the dial indicator (6) is plugged into the third insertion hole (25), the fifth bolt is threadedly connected to the third threaded hole, and the fifth bolt abuts against the dial indicator (6).

10. The end face ring groove measuring instrument according to claim 1, characterized in that: One end of the first measuring head (2) is threadedly connected to the first connecting block (18), and the other end of the first measuring head (2) is mounted with a first steel ball (1); one end of the second measuring head (15) is threadedly connected to the second connecting block (9), and the other end of the second measuring head (15) is mounted with a second steel ball (16).

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