Screw helical surface diameter detection device

Abstract

The utility model provides a screw helicoid diameter detection device, and relates to the technical field of screw detection. A sliding seat is vertically arranged on the base, a swing rod is connected with the sliding seat in a sliding mode and can rotate, a detection assembly is arranged at the end, away from the sliding seat, of the swing rod, driving equipment is arranged below the detection assembly and used for containing a screw to be detected, an obliquely-arranged spring is arranged between the swing rod and the sliding seat, and the lower end of the spring is connected with the swing rod. The higher end of the spring is connected with the sliding seat above the sliding track of the swing rod, the swing rod is pushed by the elastic force of the spring to swing downwards, and the detection assembly comprises a dial indicator. According to the utility model, the operation efficiency is improved, and collision is avoided when the screw is hoisted.

Description

Technical Field

[0001] The utility model relates to the technical field of screw detection, in particular to a screw helical surface diameter detection device. Background Art

[0002] A screw is a cylinder with a spiral groove cut on the outer surface or a cone with a spiral groove cut on a conical surface. In the prior art, the diameter measurement of a large screw requires repeated hoisting of standard parts to calibrate the dial indicator. The screw being measured is also prone to hitting the magnetic base during the hoisting process, so the hoisting speed can only be reduced to avoid this situation, resulting in low measurement efficiency and inconvenient operation. Utility Model Content

[0003] The utility model aims to develop a screw helical surface diameter detection device which can improve the working efficiency and avoid collision when the screw is hoisted.

[0004] The utility model is achieved through the following technical solutions:

[0005] A screw helical surface diameter detection device, comprising:

[0006] Base;

[0007] A slide seat is vertically arranged on the base;

[0008] A swing rod is slidably connected to the slide seat and is rotatable;

[0009] A detection assembly is arranged at the end of the swing rod away from the slide seat;

[0010] A driving device, arranged below the detection assembly and used for placing the screw to be detected;

[0011] Among them, an inclined spring is provided between the rocker arm and the slide seat, the lower end of the spring is connected to the rocker arm, and the higher end of the spring is connected to the slide seat above the sliding track of the rocker arm. The spring elastic force pushes the rocker arm to swing downward, and the detection component includes a dial indicator.

[0012] Optionally, a vertically arranged support rod is provided on the top of the slide seat, and the higher end of the spring is connected to the end of the support rod.

[0013] Optionally, the slide seat is in the shape of a vertically arranged column, a vertically arranged slide groove is provided on the slide seat, and the swing rod is slidably connected to the slide groove.

[0014] Optionally, an adjustment component is provided between the rocker arm and the slide seat, and the adjustment component includes a slider, on which a sliding rod is horizontally provided that slides in a sliding groove, the sliding rod passes through the sliding groove and the part of the sliding rod located outside the sliding groove is threadedly connected to a first nut, and the rocker arm is rotatably connected to the slider.

[0015] Optionally, a rotating rod is horizontally provided on the side wall of the sliding block away from the sliding seat, the rotating rod is arranged parallel to the sliding rod, a sleeve is rotatably sleeved on the rotating rod, the end of the rotating rod extending out of the sleeve is threadedly connected with a second nut, and the rocker arm is connected to the sleeve.

[0016] Optionally, a push rod is connected to the side wall of the sleeve away from the rocker arm, and the lower end of the spring is connected to the push rod.

[0017] Optionally, the push rod and the rocker arm are in a coaxial state, and the lower end of the spring is connected to the end of the push rod away from the sleeve.

[0018] Optionally, an end block is provided at the end of the rocker arm away from the slide seat, a handle is provided on one side wall of the end block, and the detection component is provided on the other side wall of the end block.

[0019] Optionally, the dial indicator is bolted to the end block, the measuring rod of the dial indicator is arranged vertically, a support is provided on the end block on the side of the dial indicator, a vertically arranged limit screw is connected to the inner thread of the support, and the bottom end of the limit screw is higher than the bottom end of the measuring rod of the dial indicator.

[0020] Optionally, the rocker arm includes a rod portion fixedly connected to the sleeve, an end of the rod portion away from the sleeve is coaxially slidably sleeved with a barrel portion, and the barrel portion is threadedly connected to a plurality of first locking screws radially arranged thereon.

[0021] The beneficial effects of the utility model are:

[0022] The utility model does not need to use a magnetic table base, does not need to repeatedly hoist standard parts, the swing arm is located above the screw to be tested, and the slide seat and the base can be away from the screw to be tested due to the length of the swing arm, so that the screw to be tested can be prevented from colliding with components during hoisting, and the screw to be tested has ample hoisting space, which improves the convenience of operation and the working efficiency. During the detection operation, the elastic force of the spring will cause the swing arm to swing down and keep the measuring rod of the dial indicator in contact with the screw spiral, which is easy to operate and improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 for Figure 1 View from the left.

[0026] Figure numerals: 1. base; 2. slide seat; 3. slide groove; 4. support rod; 5. spring; 6. slider; 7. rotating rod; 8. sleeve; 9. rocker arm; 91. rod; 92. barrel; 10. end block; 11. handle; 12. slide rod; 13. dial indicator; 14. support; 15. limit screw; 16. driving device; 17. push rod. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, the utility model discloses a screw helical surface diameter detection device, including a base 1, a slide 2 is provided on the base 1, a rotatable pendulum 9 is slidably provided on the slide 2, the pendulum 9 can be vertically raised and lowered on the slide 2, an adjustment component is provided between the pendulum 9 and the slide 2, a support rod 4 is provided at the top of the slide 2, a detection component is also provided at the free end of the pendulum 9, a driving device 16 is provided below the detection component, a screw to be detected is horizontally placed on the driving device 16, and both ends of the screw to be detected are respectively connected to the driving device 16.

[0031] The slide seat 2 is in the shape of a vertical column, and a vertically arranged slide slot 3 is provided on the slide seat 2. The adjustment assembly includes a slider 6, and a slider 12 is horizontally provided on the slider 6 to slide in the slide slot 3. The slider 12 passes through the slide slot 3 and a first nut is threadedly connected to the portion of the slider 12 located outside the slide slot 3. When the first nut is loosened, the slider 12 can be vertically raised and lowered in the slide slot 3. When the first nut is tightened, the first nut and the slider 6 clamp the slide seat 2 to fix the position of the slider 6.

[0032] A rotating rod 7 is horizontally provided on the side wall of the slider 6 away from the sliding seat 2. The rotating rod 7 is arranged parallel to the sliding rod 12. A sleeve 8 is rotatably sleeved on the rotating rod 7. The end of the rotating rod 7 extending out of the sleeve 8 is threadedly connected with a second nut. The tightness of the second nut is adjusted to clamp the sleeve 8, thereby achieving the purpose of adjusting the rotating friction pair of the sleeve 8.

[0033] The swing rod 9 is connected to the sleeve 8, and the swing rod 9 is perpendicular to the rotating rod 7. The swing rod 9 is a telescopic rod, which can be adjusted in length, and includes a rod portion 91 fixedly connected to the sleeve 8, and a barrel portion 92 is coaxially slidably sleeved at the end of the rod portion 91 away from the sleeve 8, and the barrel portion 92 is threadedly connected with three first locking screws arranged along its radial direction. Loosening the first locking screw, the barrel portion 92 can slide outside the rod portion 91, and rotating the first locking screw can make it closely contact with the rod portion 91 to fix the position of the rod portion 91 in the barrel portion 92.

[0034] An end block 10 is provided at the end of the barrel 92 away from the rod 91, a handle 11 is provided on one side wall of the end block 10, and a detection assembly is provided on the other side wall of the end block 10. The detection assembly includes a dial gauge 13 bolted to the end block 10, a measuring rod of the dial gauge 13 is arranged vertically, a support 14 is provided on the end block 10 at the side of the dial gauge 13, a vertically arranged limit screw 15 is internally threadedly connected to the support 14, and the bottom end of the limit screw 15 is higher than the bottom end of the measuring rod of the dial gauge 13.

[0035] A push rod 17 is provided on the side wall of the sleeve 8 away from the swing rod 9, and the push rod 17 is coaxial with the swing rod 9. A lower hook is provided at the end of the push rod 17 away from the sleeve 8, and an upper hook is provided at the top of the support rod 4. A spring 5 is connected between the upper hook and the lower hook. The elastic force of the spring 5 pulls the lower hook in the upper hook direction, and the push rod 17 swings up, and the sleeve 8 and the swing rod 9 swing downward accordingly.

[0036] When testing the screw diameter, the screw to be tested is placed horizontally on the driving device 16, and the driving device 16 can drive the screw to rotate. The tester holds the handle 11 and adjusts the position of the swing rod 9 through the handle 11 so that the measuring rod of the dial gauge 13 is on the spiral of the screw to be tested, thereby testing the screw diameter. During this process, the elastic force of the spring 5 pulls the push rod 17, and the push rod 17 drives the swing rod 9 to swing down, so that the measuring rod of the dial gauge 13 remains in contact with the screw spiral. The setting of the limit screw 15 prevents the measuring rod of the dial gauge 13 from being pressed down too much, resulting in inaccurate test results.

[0037] The utility model does not need to use a magnetic table base, and does not need to repeatedly hoist standard parts. The pendulum rod 9 is located above the screw to be tested, and the slide seat 2 and the base 1 can be away from the screw to be tested due to the length of the pendulum rod 9, thereby preventing the screw to be tested from colliding with components during hoisting. The screw to be tested has ample hoisting space, and the convenience of operation is improved, and the working efficiency is improved. During the detection operation, the elastic force of the spring 5 will cause the pendulum rod 9 to swing down and keep the measuring rod of the dial indicator 13 in contact with the screw spiral, which is easy to operate and improves the working efficiency.

[0038] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A screw helical surface diameter detection device, characterized in that: include: Base; A slide seat is vertically arranged on the base; A swing rod is slidably connected to the slide seat and is rotatable; A detection assembly is arranged at the end of the swing rod away from the slide seat; A driving device, arranged below the detection assembly and used for placing the screw to be detected; Among them, an inclined spring is provided between the rocker arm and the slide seat, the lower end of the spring is connected to the rocker arm, and the higher end of the spring is connected to the slide seat above the sliding track of the rocker arm. The spring elastic force pushes the rocker arm to swing downward, and the detection component includes a dial indicator.

2. The screw helical surface diameter detection device according to claim 1, characterized in that: A vertically arranged support rod is provided on the top of the slide seat, and the higher end of the spring is connected to the end of the support rod.

3. The screw helical surface diameter detection device according to claim 1, characterized in that: The slide seat is in the shape of a vertically arranged column, a vertically arranged slide groove is provided on the slide seat, and the swing rod is slidably connected to the slide groove.

4. The screw helical surface diameter detection device according to claim 3, characterized in that: An adjustment component is provided between the rocker arm and the slide seat, and the adjustment component includes a slider, on which a sliding rod is horizontally provided to slide in a sliding groove, the sliding rod passes through the sliding groove and a portion of the sliding rod outside the sliding groove is threadedly connected to a first nut, and the rocker arm is rotatably connected to the slider.

5. The screw helical surface diameter detection device according to claim 4, characterized in that: A rotating rod is horizontally arranged on the side wall of the sliding block away from the sliding seat. The rotating rod is arranged parallel to the sliding rod. A sleeve is rotatably sleeved on the rotating rod. The end of the rotating rod extending out of the sleeve is threadedly connected with a second nut. The swing rod is connected to the sleeve.

6. The screw helical surface diameter detection device according to claim 5, characterized in that: A push rod is connected to the side wall of the sleeve away from the swing rod, and the lower end of the spring is connected to the push rod.

7. The screw helical surface diameter detection device according to claim 6, characterized in that: The push rod is in a coaxial state with the swing rod, and the lower end of the spring is connected to the end of the push rod away from the sleeve.

8. The screw helical surface diameter detection device according to claim 1, characterized in that: An end block is provided at the end of the swing rod away from the slide seat, a handle is provided on one side wall of the end block, and the detection component is provided on the other side wall of the end block.

9. The screw helical surface diameter detection device according to claim 8, characterized in that: The dial indicator is bolted to the end block, the measuring rod of the dial indicator is arranged vertically, a support is provided on the end block on the side of the dial indicator, a vertically arranged limit screw is connected to the inner thread of the support, and the bottom end of the limit screw is higher than the bottom end of the measuring rod of the dial indicator.

10. The screw helical surface diameter detection device according to claim 5, characterized in that: The swing rod comprises a rod portion fixedly connected to the sleeve, an end of the rod portion away from the sleeve is coaxially slidably sleeved with a barrel portion, and the barrel portion is threadedly connected with a plurality of first locking screws arranged radially thereof.

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