Multi-gear caliper gauge

Abstract

The utility model belongs to the technical field of measuring workpieces, and discloses a multi-gear caliper gauge. The multi-gear caliper gauge comprises a caliper gauge body, a clamping and blocking part and a measuring part, wherein the caliper gauge body is provided with a first end head and a second end head; the clamping and blocking part is provided with a clamping and blocking surface which is used for being attached to the outer wall of the to-be-detected workpiece; the measuring part and the blocking part are respectively arranged at the first end and the second end, a measuring notch is formed between the blocking part and the measuring part, and the measuring notch is used for accommodating a workpiece to be measured; a plurality of measuring heads are arranged on the measuring part along the first direction, the distances between the plurality of measuring heads and the clamping and blocking part are gradually reduced along the first direction close to the caliper gauge body, the measuring heads are provided with measuring surfaces parallel to the clamping and blocking surfaces, and the measuring surfaces are used for being attached to the outer wall of a workpiece to be measured. According to the multi-gear caliper gauge, workpieces can be grouped according to the outer diameter sizes of the workpieces to be measured, each group of workpieces respectively represent the machining quality of the workpieces, and subsequent classified circulation processing of the workpieces is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a multi-range caliper. Background Art

[0002] A caliper is a commonly used measuring tool in the field of machining, mainly used to detect whether the outer diameter of a shaft-like or cylindrical workpiece meets the manufacturing specifications. At present, the more common caliper on the market is a C-type caliper, that is, the caliper body has an opening and is in a C shape as a whole. When measuring, the caliper is inserted vertically into the workpiece along the axial direction of the workpiece to check whether the outer diameter of the workpiece meets the size requirements. However, when using a caliper to measure and group the outer diameter of a workpiece, the staff needs to use calipers with different ranges to measure the workpiece multiple times to group the workpiece according to its size. This method requires multiple calipers with different ranges to repeatedly measure the workpiece, which is time-consuming and laborious and greatly affects the subsequent transfer operation of the workpiece. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a multi-range caliper, which can quickly and accurately classify the workpiece to be measured according to its size to speed up the subsequent transfer process.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a multi-range caliper, including:

[0006] A caliper body, the caliper body having a first end and a second end;

[0007] A blocking portion, the blocking portion having a blocking surface for abutting against the outer wall of the workpiece to be measured;

[0008] A measuring portion, the measuring portion and the blocking portion are respectively arranged at the first end and the second end, and a measuring gap is formed between the blocking portion and the measuring portion for accommodating the workpiece to be measured;

[0009] On the measuring portion, a plurality of measuring heads are arranged along a first direction, and the distances between the plurality of measuring heads and the blocking portion gradually decrease along the first direction approaching the caliper body. The measuring head has a measuring surface parallel to the blocking surface for abutting against the outer wall of the workpiece to be measured.

[0010] Preferably, a plurality of weight-reducing holes are formed in the caliper body.

[0011] Preferably, the plurality of weight-reducing holes are evenly arranged on the caliper body.

[0012] Preferably, an arc-shaped accommodating groove is recessed in the gauge body in a direction away from the measuring notch. The arc-shaped accommodating groove communicates with the measuring notch and is used to avoid the workpiece to be measured.

[0013] Preferably, the gauge body is arc-shaped and contracted from the middle position towards the first end and the second end.

[0014] Preferably, a run-out groove is provided between two adjacent measuring heads.

[0015] Preferably, both the blocking part and the measuring part are made of alloy steel.

[0016] Preferably, the gauge body is made of bearing steel.

[0017] Preferably, a fillet is provided at the edge of the gauge body.

[0018] Preferably, the blocking part and the measuring part are welded to the first end and the second end respectively.

[0019] The beneficial effects of the present utility model are as follows:

[0020] The multi-stage gauge provided by the present utility model has a blocking part and a measuring part respectively arranged on the first end and the second end of the gauge body. Since the blocking part has a blocking surface for abutting against the outer wall of the workpiece to be measured, and the measuring part is provided with a measuring head, the measuring head has a measuring surface for abutting against the outer wall of the workpiece to be measured and the measuring surface is parallel to the blocking surface. Therefore, the multi-stage gauge can simultaneously abut against the outer wall of the workpiece to be measured through the blocking surface and the measuring surface to realize the measurement and inspection of the outer diameter of the workpiece to be measured. Since the measuring part is provided with a plurality of measuring heads, the distances between the plurality of measuring heads and the blocking part gradually decrease along the first direction close to the gauge body, and each measuring head can independently measure the workpiece to be measured. Therefore, the plurality of measuring heads of the measuring part can simultaneously inspect different outer diameter sizes, so as to quickly and accurately group the workpiece to be measured according to the outer diameter of the workpiece to be measured, thereby accelerating the subsequent flow of the workpiece to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a side view of the multi-stage gauge provided by the specific embodiment of the present utility model.

[0022] In the figure:

[0023] 1 - gauge body; 11 - first end; 12 - second end; 13 - weight-reducing hole; 14 - arc-shaped accommodating groove;

[0024] 2 - blocking part;

[0025] 3 - measuring part; 31 - measuring head; 32 - run-out groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0027] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right", and "above and to the left" of the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the right", and "below and to the left" of the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0029] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, 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 thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0030] Such as Figure 1As shown in the figure, the present utility model provides a multi-range caliper. The multi-range caliper includes a caliper body 1, a blocking portion 2, and a measuring portion 3. The caliper body 1 has a first end 11 and a second end 12. The blocking portion 2 has a blocking surface for abutting against the outer wall of the workpiece to be measured. The measuring portion 3 and the blocking portion 2 are respectively arranged at the first end 11 and the second end 12. A measuring gap is formed between the blocking portion 2 and the measuring portion 3 for accommodating the workpiece to be measured. A plurality of measuring heads 31 are arranged on the measuring portion 3 along a first direction. The distances between the plurality of measuring heads 31 and the blocking portion 2 gradually decrease along the first direction approaching the caliper body 1. The measuring head 31 has a measuring surface parallel to the blocking surface for abutting against the outer wall of the workpiece to be measured. In this embodiment, the blocking portion 2 and the measuring portion 3 are respectively arranged on the first end 11 and the second end 12 of the caliper body 1. Since the blocking portion 2 has a blocking surface for abutting against the outer wall of the workpiece to be measured, and the measuring portion 3 is provided with measuring heads 31 which have measuring surfaces for abutting against the outer wall of the workpiece to be measured and the measuring surfaces are parallel to the blocking surface, the multi-range caliper can simultaneously abut against the outer wall of the workpiece to be measured through the blocking surface and the measuring surface to realize the measurement and inspection of the outer diameter of the workpiece to be measured. Since the measuring portion 3 is provided with a plurality of measuring heads 31 and the distances between the plurality of measuring heads 31 and the blocking portion 2 gradually decrease along the first direction approaching the caliper body 1, and each measuring head 31 can independently measure the workpiece to be measured, the plurality of measuring heads 31 of the measuring portion 3 can simultaneously inspect different outer diameter sizes, so as to quickly and accurately group the workpiece to be measured according to the outer diameter of the workpiece to be measured, thereby accelerating the subsequent transfer of the workpiece to be measured.

[0031] Specifically, the blocking part 2 and the measuring part 3 are relatively arranged on the first end 11 and the second end 12. There are three measuring heads 31 on the measuring part 3, which can divide the workpieces into five groups according to the outer diameter size of the workpieces to be measured. The five groups of workpieces respectively represent the processing quality of the workpieces, facilitating subsequent classification and transfer processing of the workpieces. The specific inspection and grouping operations are as follows: The staff uses this multi-range caliper to clamp on the workpiece to be measured along the direction perpendicular to the bearing of the workpiece to be measured. If the outer wall of the workpiece to be measured cannot be clamped between the outermost measuring head 31 and the blocking surface, it proves that the outer diameter size of the workpiece to be measured is too large and completely does not meet the production requirements, then this workpiece is classified as a "non-conforming product"; if the outer wall of the workpiece to be measured can be clamped between the outermost measuring head 31 and the blocking surface but cannot be clamped between the middle measuring head 31 and the blocking surface, it proves that the outer diameter size of the workpiece to be measured meets the production requirements, then this workpiece is classified as an "upper tolerance conforming product"; if the outer wall of the workpiece to be measured can pass through the outermost measuring head 31 and be clamped between the middle measuring head 31 and the blocking surface but cannot be clamped between the innermost measuring head 31 and the blocking surface, it proves that the outer diameter size of the workpiece to be measured meets the production requirements. At this time, this workpiece is classified as a "medium tolerance conforming product"; if the outer wall of the workpiece to be measured can be clamped between the innermost two measuring heads 31 and the blocking surface, it proves that the outer diameter size of the workpiece to be measured meets the production requirements, and this workpiece is classified as a "lower tolerance conforming product"; if the outer wall of the workpiece to be measured can directly pass between the innermost measuring head 31 and the blocking surface and enter the inside of the caliper body 1, it proves that the outer diameter size of the workpiece to be measured is too small and completely does not meet the production requirements, then this workpiece is classified as a "non-conforming product".

[0032] Further, as Figure 1 shown, a plurality of weight-reducing holes 13 are provided on the caliper body 1. In this embodiment, the weight-reducing holes 13 can reduce the self-weight of the caliper body 1, facilitating the staff to hold and measure, and at the same time reducing the material consumption, thereby reducing the production cost of this multi-range caliper.

[0033] Specifically, as Figure 1 shown, a plurality of weight-reducing holes 13 are evenly arranged on the caliper body 1. In this embodiment, a plurality of weight-reducing holes 13 are evenly arranged on the caliper body 1, so that the weight of the caliper body 1 is evenly distributed, enabling the staff to maintain good stability when using this multi-range caliper for measurement, thus ensuring the accuracy of the measurement.

[0034] Further, as Figure 1 shown, the caliper body 1 is recessed in a direction away from the measurement notch to form an arc-shaped accommodating groove 14. The arc-shaped accommodating groove 14 is communicated with the measurement notch, and the arc-shaped accommodating groove 14 is used to avoid the workpiece to be measured. In this embodiment, the inside of the caliper body 1 is recessed to form the arc-shaped accommodating groove 14, and the inner wall of the caliper body 1 is arc-shaped, so as to avoid the workpiece to be measured and prevent the caliper body 1 from colliding with the workpiece to be measured and causing damage to the workpiece.

[0035] Specifically, as Figure 1 shown, the caliper body 1 is arcuately contracted from the middle position towards the first end 11 and the second end 12. In this embodiment, the caliper body 1 has a symmetrical crescent shape, and it tapers arcuately from the middle towards both sides. The weight-reducing holes 13 are symmetrically arranged on the caliper body 1, and the inner diameter of the weight-reducing holes 13 is larger the closer they are to the middle position.

[0036] Furthermore, as Figure 1 shown, there is an over-travel groove 32 between two adjacent measuring heads 31. In this embodiment, the over-travel groove 32 is a reserved groove for avoiding the grinding wheel when manufacturing the clamping part 2. The over-travel groove 32 is a common structure in the field when machining parts; in addition, the over-travel groove 32 can further reduce the overall weight of the multi-range caliper while not affecting the normal measurement of the measuring head 31.

[0037] Furthermore, the clamping part 2 and the measuring part 3 are both made of alloy steel, and the caliper body 1 is made of bearing steel. In this embodiment, the clamping part 2 and the measuring part 3 are made of alloy steel. Alloy steel is a common metal material in the field, which has the advantages of high strength, corrosion resistance, and high temperature resistance; the caliper body 1 is made of bearing steel, and bearing steel is also a common metal material in the field, which has high and uniform hardness and wear resistance.

[0038] Furthermore, a fillet is provided at the edge of the caliper body 1. In this embodiment, a fillet is provided at the edge corner of the caliper body 1 to improve the comfort of the staff when holding the caliper body 1.

[0039] Furthermore, the clamping part 2 and the measuring part 3 are respectively welded to the first end 11 and the second end 12. In this embodiment, both the clamping part 2 and the measuring part 3 are welded to the caliper body 1.

[0040] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Multi-stage caliper, characterized in that: include: A caliper body (1), wherein the caliper body (1) comprises a first end (11) and a second end (12); A blocking portion (2), the blocking portion (2) having a blocking surface, the blocking surface being used to abut against an outer wall of a workpiece to be measured; A measuring part (3), wherein the measuring part (3) and the blocking part (2) are respectively arranged on the first end (11) and the second end (12), and a measuring gap is formed between the blocking part (2) and the measuring part (3), and the measuring gap is used to accommodate the workpiece to be measured; A plurality of measuring heads (31) are arranged on the measuring portion (3) along a first direction, and the distance between the plurality of measuring heads (31) and the blocking portion (2) gradually decreases along the first direction as it approaches the caliper body (1), and the measuring head (31) has a measuring surface parallel to the blocking surface, and the measuring surface is used to abut against the outer wall of the workpiece to be measured.

2. The multi-stage caliper according to claim 1, characterized in that: The caliper body (1) is provided with a plurality of weight-reducing holes (13).

3. The multi-stage caliper according to claim 2, characterized in that: A plurality of weight-reducing holes (13) are evenly arranged on the caliper body (1).

4. The multi-stage caliper according to claim 1, characterized in that: The caliper body (1) is recessed in a direction away from the measuring notch to form an arc-shaped receiving groove (14), the arc-shaped receiving groove (14) is communicated with the measuring notch, and the arc-shaped receiving groove (14) is used to avoid the workpiece to be measured.

5. The multi-stage caliper according to claim 4, characterized in that: The caliper body (1) contracts in an arc shape from a middle position toward the first end (11) and the second end (12).

6. The multi-stage caliper according to claim 1, characterized in that: An overtravel groove (32) is provided between two adjacent measuring heads (31).

7. The multi-stage caliper according to claim 1, characterized in that: The blocking portion (2) and the measuring portion (3) are both made of alloy steel.

8. The multi-stage caliper according to claim 1, characterized in that: The caliper body (1) is made of bearing steel.

9. The multi-stage caliper according to claim 1, characterized in that: Rounded corners are arranged at the edges of the caliper body (1).

10. The multi-stage caliper according to any one of claims 1 to 9, characterized in that: The blocking portion (2) and the measuring portion (3) are welded to the first end head (11) and the second end head (12) respectively.

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