Welding shaft seat type cylinder barrel form and location tolerance rapid detection device

Abstract

The invention discloses a welding shaft seat type cylinder barrel form and location tolerance rapid detection device, and relates to the technical field of detection. The supporting block is mounted on the platform and is used for supporting a cylinder barrel; the positioning device is used for fixing the cylinder barrel shaft seat; the two detection pin shafts penetrate into the cylinder barrel from the shaft seat pin shaft holes and are used for measuring the coaxiality of the two shaft seats; and the verticality measuring mechanism is arranged on the outer circle of the cylinder barrel on the platform and is used for measuring the verticality of the shaft seat pin shaft hole and the inner hole of the cylinder barrel. The device is simple in design structure, convenient and fast to mount and dismount during use, high in efficiency and low in cost, and detection can be completed by a single person; the detection universality is high, the form and location tolerance detection of different cylinder barrel diameters and different shaft seat apertures can be realized by replacing the supporting block, the wear-resistant shaft sleeve and the detection pin shaft, and the application range is wide; and the wear-resistant shaft sleeve adopts movable connection, so that the wear-resistant shaft sleeve can be quickly replaced after being worn after being used for a long time, and is convenient to maintain.

Description

Technical Field

[0001] The invention relates to the field of detection technology, in particular to a welding shaft seat type cylinder barrel shape and position tolerance rapid detection device. Background Art

[0002] The welded shaft seat type cylinder barrel generally has a shaft seat inserted and fixed on the outer circle of one end of the cylinder barrel by welding. There are symmetrical pin shaft installation positioning holes on both sides of the shaft seat. Since the cylinder barrel is installed and positioned with the main engine through these holes, in order to ensure the smooth and accurate installation of the main engine, the coaxiality between the cylinder shaft seat pin shaft holes and the verticality of the shaft seat pin shaft holes relative to the inner hole of the cylinder barrel need to be controlled.

[0003] Existing conventional measuring tools are unable to detect the above-mentioned geometric tolerances. Although laser trackers or mobile three-coordinate measuring machines can detect some geometric tolerances, the detection process is cumbersome and time-consuming, and requires professional inspectors to perform the detection. The manufacturing process is costly and is not suitable for mass production. Summary of the invention

[0004] The object of the present invention is to provide a device for quickly detecting the shape and position tolerance of a welded shaft seat type cylinder barrel, so as to solve the problems in the current market raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a welded shaft seat type cylinder shape tolerance rapid detection device, comprising: platform; A support block, the support block is mounted on the platform and is used to support the cylinder; A positioning device for fixing the cylinder shaft seat; Detection pins, two of which pass through the pin holes of the shaft seat into the cylinder barrel to measure the coaxiality of the two shaft seats; and A verticality measuring mechanism is installed on the platform at the outer circle of the cylinder barrel and is used to measure the verticality of the shaft seat pin shaft hole and the inner hole of the cylinder barrel.

[0006] Preferably, the positioning device consists of a wear-resistant sleeve positioning plate symmetrically arranged on the platform, positioning sleeves symmetrically fixed on both sides of the wear-resistant sleeve positioning plate, and a wear-resistant sleeve interference fit with the positioning sleeve, wherein the inner hole of the wear-resistant sleeve is the same as the pin shaft hole of the tested shaft seat.

[0007] Preferably, the diameter of the detection pin is the same as the inner diameter of the wear-resistant sleeve, and the two groups of detection pins are passed through the wear-resistant sleeve to fix the shaft seat of the test cylinder.

[0008] Preferably, a support frame is also installed at the bottom of the platform.

[0009] Preferably, the verticality measuring mechanism includes a detection limit plate and a vernier caliper fixed on the platform, wherein the side of the detection limit plate facing away from the cylinder is in a perpendicular relationship to the axis of the positioning device, and the end of the main scale of the vernier caliper is horizontally attached to the side of the detection limit plate facing away from the cylinder, and the depth difference is measured by attaching the vernier caliper depth gauge to the frame opening at the end of the cylinder close to the shaft seat and the frame opening at the other end of the cylinder.

[0010] Preferably, the vernier caliper and the detection limit plate are movably connected.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The invention has a simple design structure and is convenient and quick to install and disassemble during use. The detection can be completed by one person, with high efficiency and low cost. The invention has strong detection versatility and can realize form and position tolerance detection of different cylinder diameters and different shaft seat apertures by replacing the support block, the wear-resistant bushing and the detection pin shaft, and has a wide range of applications. The invention has good maintainability and the wear-resistant bushing adopts a movable connection and can be quickly replaced after being worn out after long-term use, so maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the main structure of a welded shaft seat type cylinder shape and position tolerance rapid detection device of the present invention; Figure 2 This is a schematic diagram of the top view of a welded shaft seat type cylinder shape and position tolerance rapid detection device of the present invention; Figure 3 It is a schematic diagram of the perpendicularity of the pin shaft hole of the shaft seat relative to the inner hole of the cylinder barrel of the present invention.

[0014] In the figure: 01, platform; 02, support frame; 03, wear-resistant sleeve positioning plate; 04, wear-resistant sleeve; 05, detection pin; 06, positioning sleeve; 07, detection limit plate; 08, support block; 09, vernier caliper. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 3 A device for quickly detecting the form and position tolerance of a welded shaft seat type cylinder barrel comprises: a platform 01, a support block 08 installed on the platform 01 for supporting the cylinder barrel, a positioning device for fixing the cylinder barrel shaft seat, a detection pin shaft 05 and a verticality measuring mechanism that penetrates from the shaft seat pin shaft hole into the cylinder barrel for measuring the coaxiality of the two shaft seats; the verticality measuring mechanism is installed on the outer circle of the cylinder barrel on the platform 01, and is used to measure the verticality of the shaft seat pin shaft hole and the cylinder barrel inner hole.

[0017] like Figure 2 As shown, as further explanation: the positioning device is composed of a wear-resistant sleeve positioning plate 03 symmetrically arranged on the platform 01, positioning sleeves 06 symmetrically fixed on both sides of the wear-resistant sleeve positioning plate 03, and a wear-resistant sleeve 04 interference fit with the positioning sleeve 06, wherein the inner hole of the wear-resistant sleeve 04 is the same as the pin shaft hole of the tested shaft seat.

[0018] It should be noted that the diameter of the detection pin shaft 05 is the same as the inner diameter of the wear-resistant sleeve 04 , and the shaft seat of the test cylinder is fixed by passing two sets of detection pin shafts 05 through the wear-resistant sleeve 04 .

[0019] like Figure 1 As shown, as a further improvement: a support frame 02 is also installed at the bottom of the platform 01.

[0020] As a further explanation: the verticality measuring mechanism includes a detection limit plate 07 and a vernier caliper 09 fixed on the platform 01, wherein the side of the detection limit plate 07 facing away from the cylinder is in a vertical relationship with the axis of the positioning device, and the main scale end of the vernier caliper 09 is horizontally attached to the side of the detection limit plate 07 facing away from the cylinder, and the depth difference is measured by attaching the vernier caliper 09 depth scale to the end frame opening of the cylinder near the shaft seat and the other end frame opening of the cylinder. The vernier caliper 09 and the detection limit plate 07 are movably connected.

[0021] In the specific implementation, the cylinder is supported by a set of support blocks 08 and is horizontally located on the platform 01. The two shaft seats are coaxial with the inner holes of the two wear-resistant sleeves 04, and the two sets of detection pins 05 are respectively passed through the two wear-resistant sleeves 04, and then pushed inward until they pass through the pin holes of the shaft seats. Since the two wear-resistant sleeves 04 are in a symmetrical mirror relationship, they are coaxial. The operator can determine the coaxial relationship between the pin holes of the shaft seats by detecting whether the two detection pins 05 are coaxial.

[0022] like Figure 2 As shown, then stick the end of the main scale of the vernier caliper 09 horizontally on the right side plane of the detection limit plate 07, stick the depth gauge of the vernier caliper 09 on the outer circle of the frame opening at the end of the cylinder close to the shaft seat, and then repeat the above steps for the outer circle of the frame opening at the other end of the cylinder to obtain two depth values; like Figure 3 As shown in the figure, according to the trigonometric function, it can be calculated that the perpendicularity of the shaft seat pin hole relative to the cylinder inner hole is sin[arctan[(L2-L1) / 100]·L. When the difference between L2 and L1 is less than 2mm, tanα=(L2-L1) / 100=sinα, that is, the perpendicularity of the shaft seat pin hole relative to the cylinder inner hole is (L2-L1) / 100·L.

[0023] For the coaxiality and verticality detection of the pin holes of the shaft seats with different cylinder diameters and different apertures, the above-mentioned form and position tolerances can be quickly detected by replacing the support block 08, the wear-resistant sleeve 04 and the corresponding detection pin 05.

[0024] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A welded shaft seat type cylinder shape tolerance rapid detection device, characterized in that: include: Platform (01); A support block (08), the support block (08) being mounted on the platform (01) and used for supporting the cylinder barrel; A positioning device for fixing the cylinder shaft seat; Detection pins (05), two detection pins (05) pass through the pin holes of the shaft seat into the cylinder barrel for measuring the coaxiality of the two shaft seats; and A verticality measuring mechanism is installed on the outer circle of the cylinder on the platform (01) and is used to measure the verticality of the shaft seat pin hole and the inner hole of the cylinder.

2. The welded shaft seat type cylinder shape tolerance rapid detection device according to claim 1 is characterized in that: The positioning device comprises a wear-resistant sleeve positioning plate (03) symmetrically arranged on the platform (01), positioning sleeves (06) symmetrically fixed on both sides of the wear-resistant sleeve positioning plate (03), and a wear-resistant sleeve (04) interference-fitted with the positioning sleeve (06), wherein the inner hole of the wear-resistant sleeve (04) is the same as the pin hole of the tested shaft seat.

3. The welded shaft seat type cylinder shape tolerance rapid detection device according to claim 2 is characterized in that: The diameter of the detection pin shaft (05) is the same as the inner hole diameter of the wear-resistant shaft sleeve (04), and the shaft seat of the test cylinder is fixed by passing two groups of the detection pin shafts (05) through the wear-resistant shaft sleeve (04).

4. The welded shaft seat type cylinder shape tolerance rapid detection device according to claim 3 is characterized in that: A support frame (02) is also installed at the bottom of the platform (01).

5. The device for rapid detection of shape and position tolerance of a welded shaft seat type cylinder according to any one of claims 1 to 4, characterized in that: The verticality measuring mechanism comprises a detection limit plate (07) and a vernier caliper (09) fixed on the platform (01), wherein a side of the detection limit plate (07) facing away from the cylinder barrel is in a perpendicular relationship to the axis of the positioning device, and a main scale end of the vernier caliper (09) is horizontally attached to a side of the detection limit plate (07) facing away from the cylinder barrel, and a depth gauge of the vernier caliper (09) is attached to a frame opening at an end of the cylinder barrel near the shaft seat and a frame opening at the other end of the cylinder barrel to measure a depth difference.

6. The welded shaft seat type cylinder shape tolerance rapid detection device according to claim 1 is characterized in that: The vernier caliper (09) and the detection limit plate (07) are movably connected.

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