Detection device for polished surface of piston rod

Abstract

The utility model relates to the technical field of polishing detection, in particular to a piston rod polishing surface detection device which comprises a supporting body, a pushing plate, a motor support and a positioning rod, the supporting body is a U-shaped supporting frame, the pushing plate is parallel to the bottom face of the supporting body and is connected with two side plates of the supporting body in a sliding mode, and the motor support is fixedly installed on one side plate of the supporting body. The positioning rod is slidably connected to the upper surface of the motor support, the other side plate of the supporting body is rotationally connected with a hook-shaped rotating body, and an infrared detector is connected to the upper portion of the supporting body. According to the utility model, whether the surface smoothness of the piston rod is qualified or not can be detected only by inserting the hook-shaped rotating body into the positioning pin at one end of the piston rod to be detected, placing the piston rod to be detected on the pushing plate and operating each motor, the operation is convenient, and the detection is rapid and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing detection, in particular to a polishing surface detection device for a piston rod. Background Art

[0002] Piston rods are mostly used in cylinders and hydraulic cylinders. They are moving parts with frequent movements and high technical requirements. The smoothness of the outer wall is an important indicator for testing whether the piston rod is qualified. Most existing tests are done by manual visual observation, which is inefficient and has low accuracy. Utility Model Content

[0003] The purpose of the present application is to provide a piston rod polishing surface detection device, aiming to solve the above-mentioned problems in the prior art.

[0004] The present application provides a piston rod polishing surface detection device, including a support body, a push plate, a motor bracket and a positioning rod. The support body is a U-shaped support frame. The push plate is parallel to the bottom surface of the support body and is slidably connected to the two side plates of the support body. The motor bracket is fixedly installed on one side plate of the support body. The positioning rod is slidably connected to the upper surface of the motor bracket. The other side plate of the support body is rotatably connected to a hook-type swivel, and an infrared detector is connected above the support body.

[0005] Furthermore, a slide groove is horizontally arranged on the inner side surfaces of the two side plates of the supporting body, and a circular through hole is arranged above the left slide groove.

[0006] Furthermore, the left and right ends of the push plate are connected to the slide grooves, and the push plate is slidably connected to the supporting body through the slide grooves.

[0007] Furthermore, the pushing plate includes a movable block, the upper surface of the movable block is a concave arc surface, and the curvature of the concave arc surface matches the diameter of the piston rod to be measured.

[0008] Furthermore, the positioning rod is fixedly connected to the slider, and the positioning rod is slidably connected to the slide rail on the upper surface of the motor bracket through the slider.

[0009] Furthermore, the infrared detector is installed on the cross frame of the N-type support frame, and both ends of the N-type support frame are fixedly connected to the support body.

[0010] The beneficial effect of the utility model is that the utility model only needs to insert the hook-shaped swivel into the positioning pin at one end of the piston rod to be tested, and place the piston rod to be tested on the pushing plate. Through the operation of each motor, whether the surface smoothness of the piston rod is qualified can be detected. The operation is convenient and the detection is fast and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a cross-sectional view of a hook-type swivel.

[0013] Figure 3 It is a schematic diagram of the working state of the utility model.

[0014] In the figure:

[0015] 1-support body; 2-push plate; 3-motor bracket; 4-positioning rod; 5-hook-type swivel; 6-infrared detector; 7-slide groove; 8-movable block; 9-slider; 10-slide rail; 11-N-type support frame; 12-piston rod to be tested. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1 The piston rod polishing surface detection device shown in the figure includes a support body 1, a push plate 2, a motor bracket 3 and a positioning rod 4. The support body 1 is a U-shaped support frame. The push plate 2 is parallel to the bottom surface of the support body 1 and is slidably connected to the two side plates of the support body 1. The motor bracket 3 is fixedly installed on one side plate of the support body 1. The positioning rod 4 is slidably connected to the upper surface of the motor bracket 3. The other side plate of the support body 1 is rotatably connected to a hook-type swivel 5. An infrared detector 6 is connected above the support body 1.

[0018] A slide groove 7 is horizontally arranged on the inner side surfaces of the two side plates of the support body 1, and a circular through hole is arranged above the left slide groove 7, through which the positioning rod 4 can pass.

[0019] The left and right ends of the push plate 2 are connected to the slide grooves 7 , and the push plate 2 is slidably connected to the support body 1 through the slide grooves 7 .

[0020] The push plate 2 includes a movable block 8, which moves up and down in the groove of the push plate 2 through the transmission of gears and chains. The upper surface of the movable block 8 is a concave arc surface, and the curvature of the concave arc surface matches the diameter of the piston rod 12 to be tested. When the piston rod 12 to be tested is placed on the push plate 2, the center of the cross section of the piston rod 12 to be tested and the center of the cross section of the positioning rod 4 are located on the same horizontal line.

[0021] The positioning rod 4 is fixedly connected to the slider 9, and the positioning rod 4 is slidably connected to the slide rail 10 on the upper surface of the motor bracket 3 through the slider 9, and the motor can drive the positioning rod 4 to move left and right above the motor bracket 3. When the slider 9 moves to the leftmost end of the slide rail 10, the rightmost end of the positioning rod 4 is flush with the inner side surface of the side plate of the supporting body 1.

[0022] The infrared detector 6 is installed on the cross frame of the N-shaped support frame 11, and both ends of the N-shaped support frame 11 are fixedly connected to the support body 1.

[0023] The diameter of the positioning rod 4 matches the inner diameter of the piston rod 12 to be tested, and the diameter of the hook-shaped swivel 5 matches the caliber of the positioning pin of the piston rod 12 to be tested.

[0024] When in use, push the movable block 8 on the push plate 2 to the highest point, then insert the hook-shaped swivel 5 into the positioning pin at one end of the piston rod 12 to be tested, and place the piston rod 12 to be tested on the movable block 8, move the push plate 2 to the bottom of the infrared detector 6 by the motor, and embed the positioning pin of the piston rod 12 to be tested into the hook-shaped swivel 5. At this time, the hook-shaped swivel 5 is coaxial with the rotating shaft of the piston rod 12 to be tested, and then move the fixed rod by the motor to insert it into the other side of the piston rod 12 to be tested. At this time, the piston rod is fixed on the polished surface detection device of the piston rod, and its state is as shown in FIG. Figure 3 (The dotted line indicates the rotating shaft). Then, after resetting the movable block 8, the push plate 2 is reset, the hook-shaped rotating body 5 is controlled to rotate, and the surface polishing degree of the piston rod 12 to be tested can be detected by the infrared detector 6.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A piston rod polishing surface detection device, characterized in that: It includes a supporting body, a pushing plate, a motor bracket and a positioning rod. The supporting body is a U-shaped supporting frame. The pushing plate is parallel to the bottom surface of the supporting body and is slidably connected to the two side plates of the supporting body. The motor bracket is fixedly installed on one side plate of the supporting body. The positioning rod is slidably connected to the upper surface of the motor bracket. The other side plate of the supporting body is rotatably connected to a hook-type swivel, and an infrared detector is connected above the supporting body.

2. A piston rod polishing surface detection device according to claim 1, characterized in that: A slide groove is horizontally arranged on the inner side surfaces of the two side plates of the supporting body, and a circular through hole is arranged above the left slide groove.

3. A piston rod polishing surface detection device according to claim 1, characterized in that: The left and right ends of the push plate are connected with the slide grooves, and the push plate is slidably connected to the supporting body through the slide grooves.

4. A piston rod polishing surface detection device according to claim 3, characterized in that: The pushing plate comprises a movable block, the upper surface of the movable block is an inner concave arc surface, and the curvature of the inner concave arc surface matches the diameter of the piston rod to be measured.

5. The polished surface detection device for piston rod according to claim 1, characterized in that: The positioning rod is fixedly connected to the sliding block, and the positioning rod is slidably connected to the sliding rail on the upper surface of the motor bracket through the sliding block.

6. The polished surface detection device for piston rod according to claim 1, characterized in that: The infrared detector is installed on the cross frame of the N-type support frame, and both ends of the N-type support frame are fixedly connected to the support body.

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