Measuring device for straightness and roundness of roller

Abstract

The utility model provides a device for measuring straightness and roundness of a roller, which belongs to the technical field of measuring equipment and comprises a base, a measuring frame and two movable seats. The measuring frame is slidably arranged on the base; the measuring frame is provided with a displacement distance measuring sensor, and the measuring end of the displacement distance measuring sensor faces the peripheral wall of the roller to be measured. The two movable seats are arranged on the base; each movable seat is provided with a clamping mechanism, and the clamping mechanisms on the two movable seats are respectively used for clamping the two ends of a roller to be tested. When the clamping mechanism on the movable seat clamps the to-be-tested roller, the clamping mechanism can drive the to-be-tested roller to rotate. The clamping mechanism drives the to-be-measured roller to rotate, and the displacement distance measuring sensor can measure the circumferential distance of the to-be-measured roller, so that the roundness of the to-be-measured roller is detected; compared with a visual inspection and touch mode in the prior art, the detection mode can reduce the measurement error and improve the detection precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring equipment, and particularly relates to a measuring device for the straightness and roundness of a roller. Background Art

[0002] A coating roller, also known as a coating steel roller or a glue coating roller, is a key component in a coating machine. Its main function is to evenly coat a specific liquid or paste-like substance, such as glue, paint, ink, etc., on the surface of a substrate.

[0003] In order to ensure uniform coating of the coating roller, the surface of the coating roller needs to be kept flat. After long-term use, the coating roller will be worn, and it is usually detected by visual inspection or touch, and the detection results are prone to errors. Summary of the Utility Model

[0004] An embodiment of the utility model provides a measuring device for the straightness and roundness of a roller, aiming to solve the technical problem that the existing detection method is prone to measurement errors.

[0005] To achieve the above object, the technical solution adopted by the utility model is:

[0006] A measuring device for the straightness and roundness of a roller is provided, including:

[0007] A base;

[0008] A measuring frame, slidably arranged on the base; the sliding direction of the measuring frame is parallel to the axis of the roller to be measured; a displacement ranging sensor is provided on the measuring frame, and the measuring end of the displacement ranging sensor faces the outer peripheral wall of the roller to be measured;

[0009] Two movable seats, both arranged on the base; the two movable seats can slide relatively or slide away from each other; a clamping mechanism is provided on each movable seat, and the clamping mechanisms on the two movable seats are respectively used for clamping both ends of the roller to be measured;

[0010] Wherein, when the clamping mechanism on the movable seat clamps the roller to be measured, the clamping mechanism can drive the roller to be measured to rotate.

[0011] In a possible implementation manner, the clamping mechanism includes:

[0012] A clamping sleeve, rotatably arranged on the movable seat; a cavity for the end portion of the roller to be measured to be inserted and matched is provided on the clamping sleeve;

[0013] A plurality of connecting plates, located in the cavity and arranged at intervals along the circumferential direction of the clamping sleeve; each connecting plate is slidably matched with the clamping sleeve in the radial direction, and the connecting plate can clamp the roller to be measured in the cavity;

[0014] A tightening structure is provided on the clamping sleeve; the tightening end of the tightening structure can tighten the connecting plate.

[0015] A rotation driving member is provided on the movable seat; the driving end of the rotation driving member is connected to the clamping sleeve, and the driving end of the rotation driving member is coaxially arranged with the roller to be measured.

[0016] In a possible implementation manner, the tightening structure includes:

[0017] A plurality of screw rods, corresponding to the connecting plates one by one; one end of the screw rod is connected to the connecting plate, and the other end of the screw rod extends out of the clamping sleeve.

[0018] A plurality of connecting rings, corresponding to the screw rods one by one; each connecting ring is rotatably arranged on the outer peripheral wall of the clamping sleeve, and the position of the connecting ring is relatively fixed with respect to the clamping sleeve; wherein, the connecting ring has an internal thread that is in threaded cooperation with the screw rod.

[0019] In a possible implementation manner, a gear is provided on the outer peripheral wall of each connecting ring, and an adjusting gear ring that meshes with the gear is rotatably provided on the clamping sleeve, and the position of the adjusting gear ring is relatively fixed with respect to the clamping sleeve.

[0020] In a possible implementation manner, a limiting tooth block is provided on the outer peripheral wall of the clamping sleeve, and the limiting tooth block is slidably engaged with the clamping sleeve in the radial direction; the limiting tooth block can mesh with the adjusting gear ring.

[0021] Wherein, when the connecting plate clamps the roller to be measured, the limiting tooth block meshes with the adjusting gear ring; so that the adjusting gear ring rotates synchronously with the clamping sleeve.

[0022] In a possible implementation manner, a fixing rod is provided on the outer peripheral wall of the clamping sleeve, and the limiting tooth block is slidably engaged with the fixing rod; an elastic member is provided on the fixing rod, and both ends of the elastic member are respectively connected to the fixing rod and the limiting tooth block.

[0023] Wherein, the limiting tooth block meshes with the adjusting gear ring under the elastic force of the elastic member.

[0024] In a possible implementation manner, a plurality of guiding sliding grooves are provided on the inner bottom wall of the clamping sleeve, and the plurality of guiding sliding grooves correspond to the screw rods one by one; a guiding sliding block is slidably engaged in the guiding sliding groove, and the guiding sliding block is connected to the connecting plate.

[0025] In a possible implementation manner, a rubber clamping block is connected to the clamping side of each connecting plate.

[0026] In a possible implementation, an adjusting screw rod is rotatably provided on the base, and an adjusting screw hole that is in threaded cooperation with the adjusting screw rod is provided on the measuring frame; a first guiding structure for guiding the measuring frame is further provided on the base.

[0027] In a possible implementation, a clamping screw rod is rotatably provided on the base, and two threads with opposite helix directions are provided on the clamping screw rod. Threaded holes that are in threaded cooperation with the corresponding threaded sections on the clamping screw rod are respectively provided on the two movable seats; a second guiding structure for guiding the two movable seats is provided on the base.

[0028] Compared with the prior art, a measuring device for the straightness and roundness of a roller provided by the present utility model clamps the roller to be measured on two movable seats when detecting the roller to be measured, and then slides the measuring frame on the base, so that the measuring frame can drive the displacement distance measuring sensor to slide along the axis direction of the roller to be measured, and the distance between the outer peripheral wall of the roller to be measured and the displacement distance measuring sensor can be detected. According to the detection data of the displacement distance measuring sensor, it can be judged whether the roller to be measured is flat; by driving the roller to be measured to rotate through the clamping mechanism, the displacement distance measuring sensor can measure the circumferential distance of the roller to be measured, so as to detect the roundness of the roller to be measured; compared with the prior art in which the measurement is carried out by visual inspection and touch, the detection method of the present application can reduce the measurement error and improve the detection accuracy. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of a measuring device for the straightness and roundness of a roller proposed by the present utility model;

[0030] Figure 2 is a schematic side view structural diagram of a measuring device for the straightness and roundness of a roller proposed by the present utility model;

[0031] Figure 3 is a schematic partial structural diagram of a measuring device for the straightness and roundness of a roller proposed by the present utility model;

[0032] Figure 4 is a schematic cross-sectional structural diagram of a movable seat part of a measuring device for the straightness and roundness of a roller proposed by the present utility model.

[0033] Description of reference numerals: 100, base; 101, displacement ranging sensor; 200, measuring frame; 201, adjusting lead screw; 202, adjusting motor; 203, limiting sliding groove; 204, adjusting screw hole; 300, connecting seat; 301, clamping lead screw; 302, clamping motor; 303, movable seat; 304, rotating motor; 305, clamping sleeve; 306, measuring roller; 307, T-shaped sliding groove; 308, T-shaped sliding block; 309, threaded hole; 400, connecting block; 401, connecting ring; 402, screw; 403, connecting plate; 404, rubber clamping block; 405, fixed rod; 406, limiting tooth block; 407, adjusting tooth ring; 408, threaded hole; 409, guiding sliding groove; 410, guiding sliding block; 411, annular groove; 412, limiting ring; 413, spring. Detailed implementation manners

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] Please refer to Figures 1 to 4 simultaneously, and a measuring device for the straightness and roundness of a roller provided by the present utility model will be described. The measuring device for the straightness and roundness of a roller includes a base 100, a measuring frame 200 and two movable seats 303; the measuring frame 200 is slidably arranged on the base 100; the sliding direction of the measuring frame 200 is parallel to the axis of the roller to be measured; the measuring frame 200 is provided with a displacement ranging sensor 101, and the measuring end of the displacement ranging sensor 101 faces the outer peripheral wall of the roller to be measured; the two movable seats 303 are both arranged on the base 100; the two movable seats 303 can slide relatively or slide away from each other; a clamping mechanism is arranged on each movable seat 303, and the clamping mechanisms on the two movable seats 303 are respectively used for clamping the two ends of the roller to be measured; wherein, when the clamping mechanism on the movable seat 303 clamps the roller to be measured, the clamping mechanism can drive the roller to be measured to rotate.

[0036] A measuring device for the straightness and roundness of a roller provided by the present utility model, compared with the prior art, when detecting a roller to be measured, the roller to be measured is clamped on two movable seats 303, and then the measuring frame 200 slides on the base 100, which can drive the displacement distance measuring sensor 101 to slide along the axis direction of the roller to be measured, and can detect the distance between the outer peripheral wall of the roller to be measured and the displacement distance measuring sensor 101. According to the detection data of the displacement distance measuring sensor 101, it can be judged whether the roller to be measured is flat; by driving the roller to be measured to rotate through the clamping mechanism, the displacement distance measuring sensor 101 can measure the circumferential distance of the roller to be measured, so as to detect the roundness of the roller to be measured; compared with the prior art by visual inspection and touch, the detection method of the present application can reduce the measurement error and improve the detection accuracy.

[0037] It should be noted that the displacement distance measuring sensor 101 can be a laser displacement distance measuring sensor, and the detection principle of the laser displacement distance measuring sensor is the prior art, which will not be elaborated here.

[0038] In some embodiments, such as Figures 1 to 4 shown, the clamping mechanism includes a clamping sleeve 305, a plurality of connecting plates 403, a tightening structure and a rotation driving member; the clamping sleeve 305 is rotatably arranged on the movable seat 303; the clamping sleeve 305 has a cavity for the end portion of the roller to be measured to be inserted and matched; a plurality of connecting plates 403 are located in the cavity and are arranged at intervals along the circumferential direction of the clamping sleeve 305; each connecting plate 403 is slidably matched with the clamping sleeve 305 in the radial direction, and the connecting plate 403 can clamp the roller to be measured in the cavity; the tightening structure is arranged on the clamping sleeve 305; the tightening end of the tightening structure can tighten the connecting plate 403; the rotation driving member is arranged on the movable seat 303; the driving end of the rotation driving member is connected to the clamping sleeve 305, and the driving end of the rotation driving member is coaxially arranged with the roller to be measured.

[0039] Exemplarily, the rotation driving member and the clamping sleeve 305 are respectively located on both sides of the movable seat 303. The rotation driving member includes a rotating motor 304. The housing of the rotating motor 304 is fixed on the movable seat 303, and the output shaft of the rotating motor 304 passes through the movable seat 303 and is connected to the clamping sleeve 305.

[0040] When it is necessary to clamp the roller to be measured, one end of the roller to be measured is inserted into the cavity, and the tightening structure provides a tightening force to the connecting plate 403, which can make the connecting plate 403 tighten the outer peripheral wall of the end portion of the roller to be measured; in this embodiment, three connecting plates 403 are taken as an example for illustration, and the number of the connecting plates 403 is not limited to three.

[0041] In some embodiments, such as Figures 1 to 4As shown in the figure, the tightening structure includes a plurality of screw rods 402 and a plurality of connecting rings 401; the plurality of screw rods 402 correspond to the connecting plate 403 one by one; one end of the screw rod 402 is connected to the connecting plate 403, and the other end of the screw rod 402 extends out of the clamping sleeve 305; the plurality of connecting rings 401 correspond to the screw rods 402 one by one; each connecting ring 401 is rotatably arranged on the outer peripheral wall of the clamping sleeve 305, and the position of the connecting ring 401 and the clamping sleeve 305 is relatively fixed; wherein, the connecting ring 401 has an internal thread that is threadedly engaged with the screw rod 402.

[0042] Exemplarily, a connecting block 400 is fixedly arranged on the outer peripheral wall of the clamping sleeve 305 at the position of the connecting ring 401. The connecting block 400 has a through hole for the screw rod 402 to pass through. A connecting sleeve is also fixedly arranged on the connecting block 400. A positioning sleeve is fixedly arranged at the other end of the connecting sleeve. The diameter of the positioning sleeve is larger than the diameter of the connecting sleeve; the connecting ring 401 has a slot that is inserted and matched with the connecting sleeve and a positioning groove that is rotatably matched with the positioning sleeve. The top wall and the bottom wall of the positioning groove are respectively in contact with both sides of the positioning sleeve; through the above settings, the connecting block 400 and the connecting ring 401 can be rotatably connected, and the positions of the connecting ring 401 and the connecting block 400 are relatively fixed.

[0043] It should be noted that by rotating the connecting ring 401, the screw rod 402 can slide along its own axis direction, and finally the connecting plate 403 can be tightened against the outer peripheral wall of the end of the roller to be measured.

[0044] In some embodiments, as Figures 1 to 4 shown in the figure, a gear is arranged on the outer peripheral wall of each connecting ring 401, and an adjusting gear ring 407 that meshes with the gear is rotatably arranged on the clamping sleeve 305. The position of the adjusting gear ring 407 and the clamping sleeve 305 is relatively fixed.

[0045] Exemplarily, an annular groove 411 is formed on the inner peripheral wall of the adjusting gear ring 407, and a limiting ring 412 that is rotatably matched with the annular groove 411 is formed on the outer peripheral wall of the clamping sleeve 305; through the above settings, the adjusting gear ring 407 and the clamping sleeve 305 can be axially limited, so that the positions of the adjusting gear ring 407 and the clamping sleeve 305 are relatively fixed.

[0046] It should be noted that by rotating the adjusting gear ring 407, the adjusting gear ring 407 can drive all the gears to rotate, and further enable the plurality of connecting plates 403 to simultaneously clamp the outer peripheral wall of the roller to be measured; in this embodiment, the way of rotating the adjusting gear ring 407 is manual rotation.

[0047] In some embodiments, as Figures 1 to 4As shown, a limit tooth block 406 is provided on the outer peripheral wall of the clamping sleeve 305. The limit tooth block 406 is slidably engaged with the clamping sleeve 305 in the radial direction; the limit tooth block 406 can be engaged with the adjusting tooth ring 407; wherein, when the connecting plate 403 clamps the roller to be measured, the limit tooth block 406 is engaged with the adjusting tooth ring 407; so that the adjusting tooth ring 407 rotates synchronously with the clamping sleeve 305; a fixing rod 405 is provided on the outer peripheral wall of the clamping sleeve 305, and the limit tooth block 406 is slidably engaged with the fixing rod 405; an elastic member is provided on the fixing rod 405, and both ends of the elastic member are respectively connected to the fixing rod 405 and the limit tooth block 406; wherein, the limit tooth block 406 is engaged with the adjusting tooth ring 407 under the elastic force of the elastic member.

[0048] It should be noted that when it is necessary to clamp the roller to be measured, the operator slides the limit tooth block 406 outwards. At this time, the limit tooth block 406 can be separated from the adjusting tooth ring 407. Then, keeping the state where the limit tooth block 406 and the adjusting tooth ring 407 are separated, when the operator rotates the adjusting tooth ring 407, several gears can be rotated simultaneously, and finally several connecting plates 403 clamp the outer peripheral wall of the roller to be measured simultaneously.

[0049] Exemplarily, the elastic member includes a spring 413. The spring 413 is sleeved on the fixing rod 405, and both ends of the spring 413 are fixedly connected to the fixing rod 405 and the limit tooth block 406 respectively. When the connecting plate 403 clamps the roller to be measured, the spring 413 provides an elastic force to the limit tooth block 406, which can keep the limit tooth block 406 engaged with the adjusting tooth ring 407. Therefore, during the process of driving the clamping sleeve 305 to rotate by the rotating motor 304, the adjusting tooth ring 407 can rotate synchronously with the clamping sleeve 305, avoiding the relative movement between the gear and the adjusting tooth ring 407.

[0050] In some embodiments, as Figures 1 to 4 shown, the inner bottom wall of the clamping sleeve 305 has several guiding sliding grooves 409, and several guiding sliding grooves 409 correspond to the screw rods 402 one by one; a guiding slider 410 is slidably engaged in the guiding sliding groove 409, and the guiding slider 410 is connected to the connecting plate 403.

[0051] It should be noted that by the sliding engagement of the guiding slider 410 and the guiding sliding groove 409, the sliding direction of the connecting plate 403 can be limited, thereby improving the stability of the connecting plate 403 during sliding.

[0052] In some embodiments, as Figures 1 to 4 shown, a rubber clamping block 404 is connected to the clamping side of each connecting plate 403.

[0053] It should be noted that by providing the rubber clamping block 404 on the clamping side of the connecting plate 403, on the one hand, it can play a buffering role, and on the other hand, it can reduce the situation of scratching the roller to be measured.

[0054] In some embodiments, as Figures 1 to 4 shown, an adjusting lead screw 201 is rotatably provided on the base 100, and an adjusting screw hole 204 that is in threaded cooperation with the adjusting lead screw 201 is provided on the measuring frame 200; a first guiding structure for guiding the measuring frame 200 is further provided on the base 100.

[0055] It should be noted that the first guiding structure includes a limiting sliding groove 203 provided on the base 100, the adjusting lead screw 201 is rotatably arranged in the limiting sliding groove 203, and one end of the measuring frame 200 is located in the limiting sliding groove 203; the bottom wall of the limiting sliding groove 203 is in contact with the bottom of the measuring frame 200, and the opposite side walls of the limiting sliding groove 203 are in contact with the two side walls of the measuring frame 200; through the above arrangement, during the process of the measuring frame 200 sliding in the limiting sliding groove 203, the situation that the measuring frame 200 rotates can be avoided, and the stability is improved.

[0056] Exemplarily, an adjusting motor 202 is further fixedly provided on the base 100, an output shaft of the adjusting motor 202 is located in the limiting sliding groove 203 and is connected to one end of the adjusting lead screw 201. After starting the adjusting motor 202, the adjusting motor 202 can drive the adjusting lead screw 201 to rotate.

[0057] In some embodiments, as Figures 1 to 4 shown, a clamping lead screw 301 is rotatably provided on the base 100, two threaded sections with opposite helix directions are provided on the clamping lead screw 301, and threaded holes 309 that are in threaded cooperation with the corresponding threaded sections on the clamping lead screw 301 are respectively provided on two movable seats 303; a second guiding structure for guiding the two movable seats 303 is provided on the base 100.

[0058] Exemplarily, a T-shaped sliding groove 307 is further provided on the base 100, a T-shaped slider 308 is fixedly provided at the bottom of each movable seat 303, and the T-shaped slider 308 is in sliding cooperation with the T-shaped sliding groove 307; connection seats 300 are respectively provided at positions close to both ends of the clamping lead screw 301, the connection seats 300 are fixed on the base 100, and the clamping lead screw 301 is rotatably connected to the connection seats 300. A clamping motor 302 is connected to one of the connection seats 300, and an output shaft of the clamping motor 302 is connected to one end of the clamping lead screw 301. By starting the clamping motor 302, the clamping lead screw 301 can be driven to rotate, so that the two movable seats 303 slide relatively or away from each other; through the above arrangement of the present application, rollers to be measured with different lengths can be clamped.

[0059] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for measuring roller straightness and roundness, characterized in that: include: Base; A measuring frame is slidably arranged on the base; the sliding direction of the measuring frame is parallel to the axis of the roller to be measured; the measuring frame is provided with a displacement ranging sensor, and the measuring end of the displacement ranging sensor faces the outer peripheral wall of the roller to be measured; Two movable seats are both arranged on the base; the two movable seats can slide relative to each other or slide away from each other; each movable seat is provided with a clamping mechanism, and the clamping mechanisms on the two movable seats are respectively used to clamp the two ends of the roller to be tested; Wherein, when the clamping mechanism on the movable seat clamps the roller to be measured, the clamping mechanism can drive the roller to be measured to rotate.

2. A device for measuring roller straightness and roundness according to claim 1, characterized in that: The clamping mechanism comprises: A clamping sleeve is rotatably arranged on the movable seat; the clamping sleeve has a cavity for inserting and fitting the end of the roller to be tested; A plurality of connecting plates are located in the cavity and are arranged at intervals along the circumference of the clamping sleeve; each of the connecting plates is slidably matched with the clamping sleeve in the radial direction, and the connecting plates can clamp the roller to be tested in the cavity; A tightening structure is arranged on the clamping sleeve; the tightening end of the tightening structure can tighten the connecting plate; A rotary driving member is arranged on the movable seat; a driving end of the rotary driving member is connected to the clamping sleeve, and the driving end of the rotary driving member is coaxially arranged with the roller to be measured.

3. A device for measuring roller straightness and roundness as claimed in claim 2, characterized in that: The tightening structure comprises: A plurality of screw rods corresponding to the connection plates one by one; one end of the screw rod is connected to the connection plate, and the other end of the screw rod extends out of the clamping sleeve; A plurality of connecting rings are corresponding to the screw rods one by one; each of the connecting rings is rotatably arranged on the outer peripheral wall of the clamping sleeve, and the positions of the connecting rings and the clamping sleeve are relatively fixed; wherein the connecting rings have internal threads that match the threads of the screw rods.

4. A device for measuring roller straightness and roundness as claimed in claim 3, characterized in that: The outer peripheral wall of each connecting ring is provided with a gear, and the clamping sleeve is rotatably provided with an adjusting toothed ring meshing with the gear, and the positions of the adjusting toothed ring and the clamping sleeve are relatively fixed.

5. A device for measuring roller straightness and roundness as claimed in claim 4, characterized in that: A limit tooth block is provided on the outer peripheral wall of the clamping sleeve, and the limit tooth block is slidably matched with the clamping sleeve in the radial direction; the limit tooth block can mesh with the adjusting gear ring; Wherein, when the connecting plate clamps the roller to be measured, the limiting tooth block is meshed with the adjusting tooth ring, so that the adjusting tooth ring and the clamping sleeve rotate synchronously.

6. A device for measuring roller straightness and roundness as claimed in claim 5, characterized in that: The outer peripheral wall of the clamping sleeve is provided with a fixing rod, and the limiting tooth block is slidably matched with the fixing rod; the fixing rod is provided with an elastic member, and the two ends of the elastic member are respectively connected to the fixing rod and the limiting tooth block; Wherein, the limiting tooth block is meshed with the adjusting tooth ring under the elastic force of the elastic member.

7. A device for measuring roller straightness and roundness according to any one of claims 2 to 6, characterized in that: The inner bottom wall of the clamping sleeve is provided with a plurality of guide slots, and the plurality of guide slots correspond to the screw rods one by one; a guide slide block is slidably matched in the guide slot, and the guide slide block is connected to the connecting plate.

8. A device for measuring roller straightness and roundness according to any one of claims 2 to 6, characterized in that: The clamping side of each connecting plate is connected with a rubber clamping block.

9. A device for measuring roller straightness and roundness according to any one of claims 1 to 6, characterized in that: An adjusting screw rod is rotatably arranged on the base, and an adjusting screw hole which is threadably matched with the adjusting screw rod is provided on the measuring frame; and a first guiding structure for guiding the measuring frame is also provided on the base.

10. A device for measuring roller straightness and roundness according to any one of claims 1 to 6, characterized in that: A clamping screw is rotatably provided on the base, and the clamping screw has two sections of threads with opposite rotation directions. The two movable seats respectively have thread holes that match the threads of the corresponding thread sections on the clamping screw; the base has a second guide structure for guiding the two movable seats.

Images