Detection tool for detecting aperture of inner hole of workpiece

Abstract

The utility model provides a detection tool for detecting the diameter of an inner hole of a workpiece. The detection tool comprises a base, a supporting seat and four sliding pieces, the supporting seat is connected to the middle of the upper end of the base and used for supporting a workpiece, four inner holes distributed in the circumferential direction are formed in the workpiece, the four sliding pieces are arranged on one side of the workpiece in the horizontal direction, and the lower end of each sliding piece is horizontally and slidably connected with the base. A detection head which extends towards the inner side and is matched with the inner hole in shape and size is fixed at the upper end of each sliding part; when the sliding piece drives the detection heads to move horizontally, each detection head is used for being inserted into or retreated from the inner hole in the corresponding side. According to the utility model, the aperture of the inner hole on the workpiece can be detected, so as to meet the aperture detection requirement of the inner hole of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection tools, in particular to an inspection tool for detecting the diameter of an inner hole of a workpiece. Background Art

[0002] A gauge is a device used to inspect products, for example, to detect whether the size of a product is up to standard. After a workpiece is produced, the diameter of the inner hole on the workpiece needs to be inspected. However, there is currently a lack of dedicated devices for inspecting the diameter of the inner hole on the workpiece on the market, which means that it is inconvenient to inspect the diameter of the inner hole on the workpiece. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a gauge for detecting the diameter of the inner hole of a workpiece, which can detect the diameter of the inner hole on the workpiece to meet the demand for detecting the diameter of the inner hole of the workpiece.

[0004] The utility model provides a gauge for detecting the diameter of the inner hole of a workpiece, comprising a base, a support base and four sliding members; the support base is connected to the middle part of the upper end of the base and is used for supporting the workpiece, four inner holes distributed in the circumferential direction are arranged on the workpiece, the four sliding members are respectively arranged on one side of the horizontal direction of the workpiece, the lower end of each sliding member is horizontally slidably connected to the base, and the upper end of each sliding member is fixed with a detection head extending inward and having a shape and size adapted to the inner hole; when the sliding member drives the detection head to move horizontally, each detection head is used for inserting into or withdrawing from the inner hole on the corresponding side.

[0005] The utility model can detect the aperture of the inner hole on the workpiece to meet the aperture detection demand of the inner hole of the workpiece.

[0006] In a possible embodiment, a plurality of circumferentially spaced lugs are provided on the inner wall of the workpiece, and a positioning groove vertically corresponding to each lug is provided on the outer wall of the upper end of the support seat, and each lug is vertically embedded in the positioning groove at the corresponding position; by adopting this structure, when the workpiece and the support seat are assembled, each lug can be vertically embedded in the positioning groove at the corresponding position, so that the support seat can achieve reliable support for the workpiece, and with the cooperation of the lug and the positioning groove, the circumferential limiting effect on the workpiece and the support seat can be achieved, that is, the support seat can reliably support and position the workpiece.

[0007] In a possible embodiment, a positioning hole that passes through the lug is vertically arranged on each lug, a positioning column is vertically fixed to the bottom of each positioning groove, and each positioning column is vertically inserted into the positioning hole at a corresponding position; by adopting this structure, when the workpiece and the support seat are assembled, each positioning column can be inserted into the positioning hole at the corresponding position, that is, the circumferential limiting effect on the workpiece and the support seat can be further achieved, that is, the reliability of the workpiece positioning can be improved.

[0008] In a possible embodiment, a plurality of circumferentially spaced limit columns are fixed on the base, each of which extends in the vertical direction, and the support seat is provided with limit holes vertically corresponding to the plurality of limit columns, and each limit column is vertically inserted into the limit hole at the corresponding position; by adopting this structure, the support seat and the base can be reliably assembled under the action of the coordinated insertion of the limit columns and the limit holes, and the purpose of positioning and circumferential limitation can be reliably achieved between the support seat and the base.

[0009] In a possible embodiment, a sliding cavity vertically corresponding to each sliding member is provided at the upper end of the base, each sliding cavity extends along the sliding direction of the sliding member at the corresponding position, the lower end of each sliding member is inserted into the sliding cavity at the corresponding position, sliding blocks are provided on the outer walls on both sides of the lower end of each sliding member, sliding grooves are provided on the inner walls on both sides of each sliding cavity, and each sliding block is slidably connected to the sliding groove at the corresponding position; by adopting this structure, under the cooperation of the sliding block and the sliding groove, the lower end of each sliding member can be reliably connected to the base for horizontal sliding.

[0010] In a possible embodiment, a latch is provided at the outer end of the slide groove on one side of each slide cavity, and the latch is vertically inserted on the base; when the sliding member slides outward, the latch is used to abut against the slider to prevent the sliding member from detaching from the base; after adopting this structure, under the action of the latch, when the sliding member slides outward relative to the base, the slider located on one side of the sliding member can eventually abut against the latch, thereby preventing the sliding member from detaching from the base when the inspection fixture is used normally; when the sliding member needs to be detached from the base (such as when a sliding member with a different detection head needs to be replaced), the latch can be pulled out of the base, and at this time, the sliding member can slide outward relative to the base and detach from the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure after the workpiece is assembled on the inspection fixture;

[0012] Figure 2 This is a schematic diagram of the main structure after the workpiece is assembled on the inspection fixture;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure after the workpiece and the inspection fixture are separated. DETAILED DESCRIPTION

[0014] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0016] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0017] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] See also Figure 1-3 As shown, the embodiment of the present application discloses a gauge for detecting the aperture of an inner hole of a workpiece, comprising a base 1, a support base 2 and four sliding members 3; the support base 2 is connected to the middle part of the upper end of the base 1 and is used to support a workpiece 4, on which four inner holes 41 distributed in a circumferential direction are provided, and the four sliding members 3 are respectively arranged on one side of the workpiece 4 in a horizontal direction, and the lower end of each sliding member 3 is horizontally slidably connected to the base 1, and the upper end of each sliding member 3 is fixed with a detection head 5 extending inward and having a shape and size adapted to the inner hole; when the sliding member 3 drives the detection head 5 to move horizontally, each detection head 5 is used to insert into or withdraw from the inner hole 41 on the corresponding side.

[0019] When using the utility model, first place the workpiece to be inspected on the support seat so that the support seat can support the workpiece, and then move each sliding member back and forth to allow the detection head to be inserted into and withdrawn from the inner holes on the workpiece in sequence. During the detection process, if the detection head can be smoothly inserted into the inner hole and can be smoothly withdrawn from the inner hole, it means that the quality of the workpiece is qualified. If the detection head cannot be smoothly inserted into the inner hole or cannot be smoothly withdrawn from the inner hole, it means that the quality of the workpiece is unqualified.

[0020] The inner wall of the workpiece 4 is provided with a plurality of lugs 42 distributed at circumferential intervals, and the outer wall of the upper end of the support seat 2 is provided with a positioning groove 21 vertically corresponding to each lug 42, and each lug 42 is vertically embedded in the positioning groove 21 at the corresponding position; by adopting this structure, when the workpiece and the support seat are assembled, each lug can be vertically embedded in the positioning groove at the corresponding position, so that the support seat can achieve reliable support for the workpiece, and with the cooperation of the lug and the positioning groove, the circumferential limiting effect on the workpiece and the support seat can be achieved, that is, the support seat can reliably support and position the workpiece.

[0021] A positioning hole 43 penetrating the lug 42 is vertically provided on each lug 42, and a positioning column 22 is vertically fixed to the bottom of each positioning groove 21, and each positioning column 22 is vertically inserted into the positioning hole 43 at the corresponding position; by adopting this structure, when the workpiece and the support seat are assembled, each positioning column can be inserted into the positioning hole at the corresponding position, that is, the circumferential limiting effect on the workpiece and the support seat can be further realized, that is, the reliability of the workpiece positioning can be improved.

[0022] A plurality of circumferentially spaced limiting columns 11 are fixed on the base 1, each limiting column 11 extends in the vertical direction, and a limiting hole 23 vertically corresponding to the plurality of limiting columns 11 is provided on the support seat 2, and each limiting column 11 is vertically inserted into the limiting hole 23 at the corresponding position; by adopting this structure, the limiting columns and the limiting holes are plugged in together, so that the support seat and the base can be reliably assembled, and the support seat and the base can reliably achieve the purpose of positioning and circumferential limitation.

[0023] The upper end of the base 1 is provided with a sliding cavity 12 vertically corresponding to each sliding member 3, each sliding cavity 12 extends along the sliding direction of the sliding member 3 at the corresponding position, the lower end of each sliding member 3 is inserted into the sliding cavity 12 at the corresponding position, and sliding blocks 31 are provided on the outer walls on both sides of the lower end of each sliding member 3, and sliding grooves 13 are provided on the inner walls on both sides of each sliding cavity 12, and each sliding block 31 is slidably connected to the sliding groove 13 at the corresponding position; by adopting this structure, under the cooperation of the sliding block and the sliding groove, the lower end of each sliding member can be reliably connected to the base horizontally in a sliding manner.

[0024] A latch 6 is provided at the outer end of the slide groove 13 on one side of each slide cavity 12, and the latch 6 is vertically inserted on the base 1; when the sliding member 3 slides outward, the latch 6 is used to abut against the slider 31 to prevent the sliding member 3 from detaching from the base 1; after adopting this structure, under the action of the latch, when the sliding member slides outward relative to the base, the slider located on one side of the sliding member can eventually abut against the latch, thereby preventing the sliding member from detaching from the base when the inspection fixture is used normally; when the sliding member needs to be detached from the base (such as when a sliding member with a different detection head needs to be replaced), the latch can be pulled out of the base, and at this time, the sliding member can slide outward relative to the base and detach from the base.

[0025] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A tool for detecting the diameter of a workpiece inner hole, characterized in that: The invention comprises a base (1), a support base (2) and four sliding members (3); the support base (2) is connected to the middle of the upper end of the base (1) and is used to support a workpiece (4); four inner holes (41) distributed in a circumferential direction are arranged on the workpiece (4); the four sliding members (3) are respectively arranged on one side of the workpiece (4) in a horizontal direction; the lower end of each sliding member (3) is horizontally slidably connected to the base (1); the upper end of each sliding member (3) is fixed with a detection head (5) extending inward and having a shape and size adapted to the inner hole; when the sliding member (3) drives the detection head (5) to move horizontally, each detection head (5) is used to insert into or withdraw from the inner hole (41) on the corresponding side.

2. The inspection tool for detecting the inner hole diameter of a workpiece according to claim 1, characterized in that: The inner wall of the workpiece (4) is provided with a plurality of lugs (42) distributed at intervals in the circumferential direction, and the outer wall of the upper end of the support seat (2) is provided with a positioning groove (21) vertically corresponding to each lug (42), and each lug (42) is vertically embedded in the positioning groove (21) at the corresponding position.

3. The inspection tool for detecting the inner hole diameter of a workpiece according to claim 2, characterized in that: A positioning hole (43) penetrating the lug (42) is vertically arranged on each lug (42), a positioning column (22) is vertically fixed to the bottom of each positioning groove (21), and each positioning column (22) is vertically inserted into the positioning hole (43) at a corresponding position.

4. The workpiece inner hole diameter detection tool according to any one of claims 1 to 3, characterized in that: A plurality of limiting columns (11) are fixed on the base (1) and are distributed at intervals in the circumferential direction. Each of the limiting columns (11) extends in the vertical direction. The support seat (2) is provided with limiting holes (23) vertically corresponding to the plurality of limiting columns (11) one by one. Each of the limiting columns (11) is vertically inserted into the limiting hole (23) at the corresponding position.

5. The inspection tool for detecting the inner hole diameter of a workpiece according to any one of claims 1 to 3, characterized in that: The upper end of the base (1) is provided with a sliding cavity (12) vertically corresponding to each of the sliding members (3), each of the sliding cavities (12) extends along the sliding direction of the sliding member (3) at the corresponding position, the lower end of each of the sliding members (3) is inserted into the sliding cavity (12) at the corresponding position, and sliding blocks (31) are provided on the outer walls on both sides of the lower end of each of the sliding members (3), and sliding grooves (13) are provided on the inner walls on both sides of each of the sliding cavities (12), and each of the sliding blocks (31) is slidably connected to the sliding grooves (13) at the corresponding position.

6. The inspection tool for detecting the inner hole diameter of a workpiece according to claim 5, characterized in that: A latch (6) is provided at the outer end of the slide groove (13) on one side of each of the slide cavities (12), and the latch (6) is vertically inserted on the base (1); when the sliding member (3) slides outward, the latch (6) is used to abut against the slider (31) to prevent the sliding member (3) from detaching from the base (1).

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