Cylindrical helical spring outer diameter testing fixture

Abstract

The utility model discloses a cylindrical helical spring outer diameter testing fixture, which comprises a fixed plate, the top of the fixed plate is fixedly connected with a fixed seat, and one side of the fixed seat is provided with a movable seat in sliding connection with the fixed plate. An output shaft of a second motor rotates to drive a two-way screw to rotate so as to enable a connecting block to move, an output shaft of a first motor rotates to drive a movable seat to move towards a fixed seat, an arc-shaped plate enters the movable seat through a through groove, the movable seat pushes a spiral spring to be compressed, and a limiting block is rotated to enable a movable sleeve to move so as to adjust the position of a movable column. The limiting block is pressed to enable the movable column to move, the spring deforms, when the measuring head makes contact with the outer surface of the spiral spring, reading can be conducted through the scale marks, the outer diameter of the spiral spring can be measured, the axis of the spiral spring and the fixed column are located on the same straight line through the arc-shaped plate, the detection precision is improved, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of cylindrical helical spring outer diameter detection, in particular to a cylindrical helical spring outer diameter detection tool. Background Art

[0002] The maximum outer diameter of a spring is an important parameter for judging the dimensional accuracy of the spring and evaluating the performance of the spring. In order to ensure the pass rate of the spring, each manufacturer needs to test the maximum outer diameter of the spring. The method for measuring the outer diameter of a spring is to compress the spring along its axis until it can no longer be compressed, and then measure the diameter of the spring at the farthest point outside. This diameter is the maximum outer diameter of the spring.

[0003] The present application is an improvement on the prior art. In the prior art, an operator generally uses a depth gauge to measure the maximum outer diameter of a spring. However, since it is difficult to keep the arm stable when operating the depth gauge by hand, the measurement result is inaccurate. In addition, the depth gauge measurement method is relatively complicated and time-consuming. When a large number of springs need to be measured, the operator's workload will increase and the work efficiency will be low. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a cylindrical helical spring outer diameter measuring tool.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have the support of the bolt, and the bolt has a round shank to move up and down, and the bolt has a round shank to move up and down, and the bolt has a round shank to move up and down, and a spring is placed on the bolt to stop the bolt.

[0007] As a further solution of the utility model: a screw is rotatably connected inside the fixed plate, a movable block is threadedly connected to the outer wall of the screw, and the movable block is slidably connected to the fixed plate, the movable block is fixedly connected to the movable seat, a first motor is fixedly connected to one side of the fixed plate, and the output shaft of the first motor is fixedly connected to the screw.

[0008] As a further solution of the utility model: a second motor is fixedly connected to a side of the movable seat away from the movable seat, an output shaft of the second motor is fixedly connected to a bidirectional screw, a symmetrically distributed slide groove is provided on a side of the fixed seat close to the movable seat, a slider is slidably connected to the inner wall of the slide groove, and the slider is fixedly connected to the arc plate, a through groove is provided in the movable seat, and the through groove is adapted to the arc plate.

[0009] As a further solution of the utility model: a limiting block is rotatably connected inside the transverse plate, and the limiting block is threadedly connected to the movable sleeve.

[0010] As a further solution of the utility model: one end of the movable column extending out of the top of the movable sleeve is fixedly connected to a limiting block, the bottom of the limiting block is fixedly connected to a spring sleeved with the movable column, and the other end of the spring abuts against the movable sleeve, and the end of the measuring head close to the movable sleeve is fixedly connected to a symmetrically distributed protective pad.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a cylindrical coil spring is sleeved on the outer surface of the arc plate, the second motor is started, the output shaft of the second motor rotates to drive the bidirectional screw to rotate, thereby moving the connecting block, the two groups of connecting blocks move to move the arc plate and thereby make the arc plate abut against the inner side of the coil spring, the first motor is started, the output shaft of the first motor rotates to drive the screw to rotate and thereby drive the movable block to move, so that the movable seat moves toward the fixed seat, the arc plate enters the movable seat through the through groove, the movable seat pushes the coil spring to compress until it can no longer be compressed, the limit block is rotated to move the movable sleeve and thereby adjust the position of the movable column, the limit block is pressed to move the movable column, the spring is deformed, and when the measuring head contacts the outer surface of the coil spring, the reading can be made through the scale line, so that the outer diameter of the coil spring can be measured, and the axis of the coil spring and the fixed column are located on the same straight line through the arc plate, thereby improving the detection accuracy and the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a cylindrical helical spring outer diameter inspection tool proposed by the utility model;

[0014] Figure 2 A top view of a horizontal plate of a cylindrical helical spring outer diameter inspection fixture proposed by the utility model;

[0015] Figure 3 For the utility model Figure 1 A is an enlarged structural diagram of FIG.

[0016] Legend:

[0017] Fixed plate 1, fixed seat 2, movable seat 3, screw rod 4, movable block 5, first motor 6, through slot 7, fixed column 8, bidirectional screw rod 9, connecting block 10, connecting rod 11, arc plate 12, slider 13, slide slot 14, second motor 15, movable sleeve 16, cross plate 17, stud 18, limit block 19, spring 20, movable column 21, protective pad 22, scale line 23, measuring head 24. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does 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 cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Reference Figure 1-3The utility model provides a cylindrical helical spring outer diameter gauge, comprising a fixed plate 1, a fixed seat 2 is fixedly connected to the top of the fixed plate 1, a movable seat 3 slidably connected to the fixed plate 1 is provided on one side of the fixed seat 2, a fixed column 8 is fixedly connected to the side of the fixed seat 2 close to the movable seat 3, a symmetrically distributed connecting block 10 is slidably connected in the fixed column 8, a bidirectional screw 9 is rotatably connected to the inner wall of the fixed column 8, and the two sides of the bidirectional screw 9 are respectively threadedly connected to the two connecting blocks 10, symmetrically distributed connecting rods 11 are hinged on both sides of the connecting block 10, and an arc plate 12 is hinged on the other end of the connecting rod 11, a transverse plate 17 is fixedly connected to the top of the movable seat 3, a movable sleeve 16 is slidably connected in the transverse plate 17, a movable column 21 is slidably connected to the inner wall of the movable sleeve 16, and a measuring head 24 is fixedly connected to one end of the movable column 21 extending out of the bottom of the movable sleeve 16, and a scale line 23 is provided on the front side of the movable column 21.

[0021] A screw rod 4 is rotatably connected inside the fixed plate 1, a movable block 5 is threadedly connected to the outer wall of the screw rod 4, and the movable block 5 is slidably connected to the fixed plate 1, the movable block 5 is fixedly connected to the movable seat 3, a first motor 6 is fixedly connected to one side of the fixed plate 1, and the output shaft of the first motor 6 is fixedly connected to the screw rod 4.

[0022] A second motor 15 is fixedly connected to the side of the movable seat 3 away from the movable seat 3, and the output shaft of the second motor 15 is fixedly connected to the bidirectional screw 9. A symmetrically distributed slide groove 14 is provided on the side of the fixed seat 2 close to the movable seat 3. A slider 13 is slidably connected to the inner wall of the slide groove 14, and the slider 13 is fixedly connected to the arc plate 12. A through groove 7 is provided in the movable seat 3, and the through groove 7 is adapted to the arc plate 12.

[0023] The limit block 19 is rotatably connected inside the transverse plate 17 , and the limit block 19 is threadedly connected to the movable sleeve 16 .

[0024] One end of the movable column 21 extending out from the top of the movable sleeve 16 is fixedly connected to the limiting block 19, and the bottom of the limiting block 19 is fixedly connected to a spring 20 which is sleeved with the movable column 21, and the other end of the spring 20 abuts against the movable sleeve 16, and one end of the measuring head 24 close to the movable sleeve 16 is fixedly connected to a symmetrically distributed protective pad 22.

[0025] Working principle:

[0026] In the present application, when in use, the cylindrical coil spring is sleeved on the outer surface of the arc plate 12, and the second motor 15 is started. The output shaft of the second motor 15 rotates to drive the bidirectional screw 9 to rotate, thereby moving the connecting block 10. The two groups of connecting blocks 10 move to move the arc plate 12, thereby making the arc plate 12 abut against the inner side of the coil spring. The first motor 6 is started, and the output shaft of the first motor 6 rotates to drive the screw 4 to rotate, thereby driving the movable block 5 to move, so that the movable seat 3 moves toward the fixed seat 2, and the arc plate 12 enters the movable seat 3 through the through groove 7. The movable seat 3 pushes the coil spring to compress until it cannot be compressed. The limit block 19 is rotated to move the movable sleeve 16 and then adjust the position of the movable column 21. The limit block 19 is pressed to move the movable column 21, and the spring 20 is deformed. When the measuring head 24 contacts the outer surface of the coil spring, the reading can be made through the scale line 23, so that the outer diameter of the coil spring can be measured. The axis of the coil spring and the fixed column 8 are located on the same straight line through the arc plate 12, thereby improving the detection accuracy and the detection efficiency.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical helical spring outer diameter gauge, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is fixedly connected to a fixed seat (2), one side of the fixed seat (2) is provided with a movable seat (3) slidably connected to the fixed plate (1), a fixed column (8) is fixedly connected to the side of the fixed seat (2) close to the movable seat (3), the fixed column (8) is slidably connected to symmetrically distributed connecting blocks (10), the inner wall of the fixed column (8) is rotatably connected to a bidirectional screw (9), the two sides of the bidirectional screw (9) are respectively threadedly connected to two connecting blocks (10), and the connecting blocks (10) are connected to the fixing plate (1) and the fixing plate (1) are connected to the fixing plate (1). The movable seat (10) is hinged on both sides with symmetrically distributed connecting rods (11), and the other end of the connecting rod (11) is hinged with an arc plate (12), the top of the movable seat (3) is fixedly connected with a horizontal plate (17), a movable sleeve (16) is slidably connected inside the horizontal plate (17), a movable column (21) is slidably connected to the inner wall of the movable sleeve (16), one end of the movable column (21) extending out of the bottom of the movable sleeve (16) is fixedly connected with a measuring head (24), and a scale mark (23) is provided on the front side of the movable column (21).

2. The cylindrical helical spring outer diameter gauge according to claim 1, characterized in that: A screw rod (4) is rotatably connected inside the fixed plate (1), a movable block (5) is threadedly connected to the outer wall of the screw rod (4), and the movable block (5) is slidably connected to the fixed plate (1), the movable block (5) is fixedly connected to the movable seat (3), and a first motor (6) is fixedly connected to one side of the fixed plate (1), and an output shaft of the first motor (6) is fixedly connected to the screw rod (4).

3. The cylindrical helical spring outer diameter gauge according to claim 1, characterized in that: A second motor (15) is fixedly connected to a side of the movable seat (3) away from the movable seat (3); an output shaft of the second motor (15) is fixedly connected to a bidirectional screw (9); a side of the fixed seat (2) close to the movable seat (3) is provided with symmetrically distributed slide grooves (14); a slider (13) is slidably connected to the inner wall of the slide groove (14); and the slider (13) is fixedly connected to the arc plate (12); a through groove (7) is provided in the movable seat (3), and the through groove (7) is adapted to the arc plate (12).

4. The cylindrical helical spring outer diameter gauge according to claim 1, characterized in that: A limit block (19) is rotatably connected inside the transverse plate (17), and the limit block (19) is threadedly connected to the movable sleeve (16).

5. The cylindrical helical spring outer diameter gauge according to claim 1, characterized in that: One end of the movable column (21) extending out of the top of the movable sleeve (16) is fixedly connected to a limit block (19), the bottom of the limit block (19) is fixedly connected to a spring (20) sleeved with the movable column (21), and the other end of the spring (20) is in contact with the movable sleeve (16), and one end of the measuring head (24) close to the movable sleeve (16) is fixedly connected to a symmetrically distributed protective pad (22).

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