Flocking spring thickness measuring caliper

Abstract

The utility model relates to the technical field of flocking thickness measurement, in particular to a flocking spring thickness measurement caliper. Comprising a gear meshed with the rack, an end face ratchet wheel with a tooth part and an elastic pressing element, the end face ratchet wheel comprises a driving wheel and a transmission wheel, the driving wheel is connected with torsion, the transmission wheel is connected with the gear, and at least one ratchet wheel can axially float to enable the tooth part to be meshed or separated. According to the caliper, vernier fine adjustment is achieved through matched transmission of the gear rack and the end face ratchet wheel, transmission can be interrupted through the axial floating ratchet wheel, the clamping head can clamp the two ends of a flocking spring with preset pressure during measurement, subjective influences of measurement personnel are avoided, measurement is accurate, errors are reduced, and the measurement accuracy is effectively improved; and a more reliable and accurate tool is provided for measuring the thickness of the flocked spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flocking thickness measurement, particularly relates to a flocking spring thickness measurement caliper. BACKGROUND

[0002] Flocking technology is a kind of process that fiber powder is vertically fixed on the object or substrate coated with adhesive, and the principle of flocking is to use the physical characteristics that same charge repels and unlike charge attracts, to make the flocking in the container with negative charge, and the object to be planted is placed in the condition of zero potential or grounding, and the container is moved close to the object to be planted to form a high-voltage electric field between the container with negative charge and the object to be planted, the flocking in the container is negative charge, and is attracted by the object to be planted in different potential, and is accelerated to the surface of the object to be planted vertically, and the object to be planted is coated with adhesive, and the flocking is vertically planted on the object to be planted.

[0003] Flocking spring is a special spring, which is obtained by flocking treatment on the basis of ordinary spring, and the ordinary spring is generally made of wire (such as steel wire, stainless steel wire and the like), and the shape can be cylindrical spiral spring, conical spiral spring, disc spring and the like, and the flocking spring is a layer of flocking attached to the surface of the spring by flocking process. In the production process of flocking spring, the thickness of flocking spring needs to be measured to ensure the consistency of the quality of flocking spring, however, in the actual measurement process, due to the elasticity of spring and the softness of flocking, when the conventional measuring tool is used to measure the same flocking spring for many times, due to the inconsistent force applied to the measured flocking spring, the measured flocking spring is prone to deformation, resulting in large deviation of measurement result, and it is difficult to determine whether the quality of flocking spring is qualified. UTILITY MODEL CONTENTS

[0004] In order to overcome the above technical problems of the prior art, the utility model provides a flocking spring thickness measurement caliper, which solves the technical problem that when the flocking spring is measured for many times, due to the inconsistent force applied to the measured flocking spring, the measured flocking spring is prone to deformation, resulting in large deviation of measurement result, and it is difficult to determine whether the quality of flocking spring is qualified.

[0005] In order to realize the above purpose, the utility model is realized by the following technical scheme:

[0006] The application discloses a flocked spring thickness measuring caliper for measuring the overall thickness of a flocked spring, which comprises a ruler body, a vernier, a pair of clamping heads, the vernier being slidably connected with the ruler body, and the pair of clamping heads being arranged on the ruler body and the vernier respectively, wherein the flocked spring thickness measuring caliper comprises a gear rack arranged on the ruler body and an adjusting assembly mounted on the vernier, the adjusting assembly comprising a gear wheel rotatably mounted on the vernier and being in meshing connection with the gear rack, and a pair of end face ratchets rotatably mounted on the vernier, the end faces between the pair of end face ratchets being provided with tooth portions, at least one of the end face ratchets being axially floating so as to make the tooth portions on both sides mesh with each other or be separated from each other, and a spring pressing element abutting against one end of the axially floating end face ratchet away from the tooth portion, and the pair of end face ratchets comprise a driving wheel and a transmission wheel, the driving wheel being used for receiving a rotating torque, and the transmission wheel being in transmission connection with the gear wheel.

[0007] Based on the above structure, the principle of the flocked spring thickness measuring caliper is as follows: firstly, the flocked spring to be measured is arranged between the pair of clamping heads, then the vernier is slid to make the pair of clamping heads clamp the two ends of the flocked spring to be measured, and then the adjusting assembly is used for fine adjustment of the pair of clamping heads, the driving wheel is rotated, the driving wheel starts to rotate after receiving the rotating torque, the tooth portions are arranged between the driving wheel and the transmission wheel in the axial direction, at least one of the end face ratchets is axially floating, in the normal rotating adjustment process, the spring pressing element makes the axially floating end face ratchet keep in a proper state, so that the tooth portions on both sides mesh with each other, at this moment, the rotation of the driving wheel drives the transmission wheel to rotate through the meshing tooth portions, the transmission wheel is in transmission connection with the gear wheel, the rotation of the transmission wheel drives the gear wheel to rotate, and the gear wheel is in meshing connection with the gear rack, so that the fine adjustment movement of the vernier on the ruler body is realized, and then the positions of the pair of clamping heads are adjusted to clamp the two ends of the flocked spring to be measured at a preset pressure, the overall thickness of the flocked spring is measured, when the pair of clamping heads reach the preset pressure, the driving wheel is continuously rotated, the meshing tooth portions are axially separated from each other due to the axially floating of at least one of the end face ratchets, so that the transmission is interrupted, and the pair of tooth portions are idling between each other, and a sound is emitted to prompt the measurer to read the data.

[0008] Further, the vernier of the flocked spring thickness measuring caliper comprises an upper cover and a base, the upper cover is detachably mounted on the base, and the ruler body is located between the upper cover and the base. As a preferred scheme of the application, the upper cover of the flocked spring thickness measuring caliper is detachably mounted on the base, the adjusting assembly is mounted on the vernier, when wear, damage or cleaning and maintenance occur in the adjusting assembly, the upper cover can be conveniently detached from the base, the adjusting assembly can be maintained, replaced or cleaned, and the service life of the flocked spring thickness measuring caliper is prolonged.

[0009] Further, the adjusting assembly of the pile spring thickness measuring caliper in the application further comprises a transmission shaft rotatably arranged between the upper cover and the base, the gear, the elastic pressing element and the transmission wheel are sequentially arranged on the transmission shaft, and the two ends of the elastic pressing element are axially in contact with the gear and the transmission wheel. As a preferred solution of the application, the transmission shaft is used for transmission between the transmission wheel and the gear, so as to ensure the stability of transmission. When the driving wheel is rotated, the driving wheel drives the transmission wheel to rotate under the cooperation of the tooth part, the transmission wheel stably transmits the torsion to the gear through the transmission shaft, the meshing movement of the gear and the rack is thus stable and accurate, so that the displacement amount of the vernier on the ruler body can be accurately controlled, the measurement accuracy is effectively improved, and the measurement error is reduced. At the same time, the transmission shaft is also used to ensure that the axial meshing or disengagement of the tooth part on the pair of end face ratchets does not occur radial displacement.

[0010] Further, the adjusting assembly of the pile spring thickness measuring caliper in the application further comprises a transmission shaft rotatably arranged between the upper cover and the base, the gear, the elastic pressing element and the transmission wheel are sequentially arranged on the transmission shaft, and the two ends of the elastic pressing element are axially in contact with the gear and the transmission wheel. As a preferred solution of the application, the transmission shaft is used for transmission between the transmission wheel and the gear, so as to ensure the stability of transmission. When the driving wheel is rotated, the driving wheel drives the transmission wheel to rotate under the cooperation of the tooth part, the transmission wheel stably transmits the torsion to the gear through the transmission shaft, the meshing movement of the gear and the rack is thus stable and accurate, so that the displacement amount of the vernier on the ruler body can be accurately controlled, the measurement accuracy is effectively improved, and the measurement error is reduced. At the same time, the transmission shaft is also used to ensure that the axial meshing or disengagement of the tooth part on the pair of end face ratchets does not occur radial displacement.

[0011] Further, the adjusting assembly of the pile spring thickness measuring caliper in the application further comprises a transmission shaft rotatably arranged between the upper cover and the base, the gear, the elastic pressing element and the transmission wheel are sequentially arranged on the transmission shaft, and the two ends of the elastic pressing element are axially in contact with the gear and the transmission wheel. As a preferred solution of the application, the transmission shaft is used for transmission between the transmission wheel and the gear, so as to ensure the stability of transmission. When the driving wheel is rotated, the driving wheel drives the transmission wheel to rotate under the cooperation of the tooth part, the transmission wheel stably transmits the torsion to the gear through the transmission shaft, the meshing movement of the gear and the rack is thus stable and accurate, so that the displacement amount of the vernier on the ruler body can be accurately controlled, the measurement accuracy is effectively improved, and the measurement error is reduced. At the same time, the transmission shaft is also used to ensure that the axial meshing or disengagement of the tooth part on the pair of end face ratchets does not occur radial displacement.

[0012] Furthermore, the flocked spring thickness measuring caliper of this application further includes: a cover plate; the base has a mounting countersunk opening adapted to the drive wheel; the drive wheel is installed in the mounting countersunk opening; the drive wheel extends radially with a limiting protrusion; the limiting protrusion abuts against the sidewall of the mounting countersunk opening in both the axial and radial directions of the drive wheel; the cover plate is located on the side of the drive wheel away from the transmission wheel; and the cover plate is detachably mounted on the base. As a preferred embodiment of this application, the flocked spring thickness measuring caliper of this application has a mounting countersunk opening for installing the drive wheel; the limiting protrusion cooperates with the sidewall of the mounting countersunk opening to limit the drive wheel axially and radially, ensuring the stability of the drive wheel during rotation and preventing displacement or wobbling; the cover plate is detachably mounted on the base, so if the drive wheel is worn or malfunctions, maintenance personnel can remove the cover plate to repair or replace the drive wheel, reducing maintenance difficulty and cost.

[0013] Furthermore, the flocked spring thickness measuring caliper of this application also includes: a screwing part, which is located at the end of the drive wheel away from the transmission wheel, and the screwing part extends axially outward from a cover plate. As a preferred embodiment of this application, the flocked spring thickness measuring caliper of this application provides convenience for the measuring personnel when measuring the flocked spring under test by screwing the screwing part, thereby improving the efficiency and convenience of the measurement operation.

[0014] Furthermore, in this application, a flocked spring thickness measuring caliper has a vernier extending radially from the gear. As a preferred embodiment of this application, the flocked spring thickness measuring caliper allows the measuring operator to adjust the gear extending the vernier to move the vernier on the caliper body, thereby improving the efficiency of the measurement operation. Simultaneously, the measuring operator can determine whether the flocked spring thickness measuring caliper requires maintenance by observing the wear condition of the exposed gear, thus improving the convenience of maintenance.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0016] This invention provides a caliper for measuring the thickness of flocked springs. Through an adjustment component mounted on the vernier, the position of the vernier can be finely adjusted by the meshing transmission of gears and racks and the engagement transmission between end face ratchet. The axially floating end face ratchet disengages the teeth on both sides to interrupt the transmission. This ensures that when measuring the overall thickness of the flocked spring, a pair of calipers are always clamped at the two ends of the flocked spring under test with a preset pressure. This eliminates the subjectivity of the measuring personnel, effectively improves the accuracy of the measurement, and reduces measurement errors. Attached Figure Description

[0017] Figure 1 This is a plan view of a flocked spring thickness measuring caliper in an embodiment of this application;

[0018] Figure 2 For Figure 1 A-A sectional view;

[0019] Figure 3 It is an exploded view of the adjusting assembly of a spring thickness measuring caliper in the embodiments of the present application.

[0020] In the figure: 1 - ruler body; 11 - rack; 2 - vernier; 21 - upper cover; 22 - base; 220 - mounting spout; 3 - clamping head; 4 - adjusting assembly; 41 - gear; 42 - end face ratchet; 420 - tooth part; 421 - driving wheel; 4211 - limiting convex; 422 - transmission wheel; 43 - elastic pressing element; 44 - transmission shaft; 5 - bearing; 6 - cover plate; 7 - screwing part. DETAILED DESCRIPTION

[0021] As Figure 1 , 2 , 3, a spring thickness measuring caliper for measuring the overall thickness of a flocking spring, comprising a ruler body 1, a vernier 2, and a pair of clamping heads 3, the vernier 2 is in sliding adjustment connection with the ruler body 1, and the pair of clamping heads 3 are respectively arranged on the ruler body 1 and the vernier 2, comprising a rack 11, the rack 11 is arranged on the ruler body 1; an adjusting assembly 4, the adjusting assembly 4 is installed on the vernier 2, the adjusting assembly 4 comprises a gear 41 rotatably installed on the vernier 2, the gear 41 is in meshing connection with the rack 11; a pair of end face ratchets 42 rotatably installed on the vernier 2, the tooth part 420 is arranged on the end face between the pair of end face ratchets 42 in the axial direction, at least one of the end face ratchets 42 can be axially floating to make the tooth parts 420 on both sides mesh with each other or disengage; an elastic pressing element 43, the elastic pressing element 43 abuts against one end of the end face ratchet 42 which is axially floating away from the tooth part 420; the pair of end face ratchets 42 comprises a driving wheel 421 and a transmission wheel 422, the driving wheel 421 is used for receiving a rotating torque, and the transmission wheel 422 is in transmission connection with the gear 41.

[0022] Based on the above structure, the principle of the one kind of flocking spring thickness measuring caliper is: first, the flocking spring (not shown) to be measured is placed between a pair of calipers 3, then the two ends of the flocking spring to be measured are clamped by the pair of calipers 3 by sliding the vernier 2, then the pair of calipers 3 is fine-tuned by adjusting the assembly 4, the driving wheel 421 is rotated, the driving wheel 421 starts to rotate after receiving the rotating torque, because the teeth 420 are arranged on the end faces between the driving wheel 421 and the transmission wheel 422 in the axial direction, and at least one end face ratchet 42 can be axially floating, in the normal rotation adjustment process, the elastic pressing element 43 keeps the axially floating end face ratchet 42 in a suitable state, so that the teeth 420 on both sides are meshed with each other, at this time, the rotation of the driving wheel 421 will drive the transmission wheel 422 to rotate through the meshed teeth 420, because the transmission wheel 422 is in transmission connection with the gear 41, the rotation of the transmission wheel 422 will drive the gear 41 to rotate, and the gear 41 is in meshing connection with the rack 11, so as to realize the fine-tuning movement of the vernier 2 on the ruler body 1, and then the position of the pair of calipers 3 is adjusted to be clamped at both ends of the flocking spring to be measured at a preset pressure, the overall thickness of the flocking spring is measured, when the pair of calipers 3 reaches the preset pressure, the driving wheel 421 is continuously rotated, because at least one end face ratchet 42 can be axially floating, the meshed teeth 420 are axially disengaged to realize transmission interruption, and the idling between the pair of teeth 420 will emit a sound to prompt the measurer to read the data. The elastic pressing element 43 adopts a spiral spring.

[0023] In the embodiment, the vernier 2 includes an upper cover 21 and a base 22, the upper cover 21 is detachably installed on the base 22, and the ruler body 1 is located between the upper cover 21 and the base 22. The upper cover 21 is detachably installed on the base 22, which facilitates the installation of the adjusting assembly 4 on the vernier 2, and when wear, damage or cleaning and maintenance occur in the adjusting assembly 4, the upper cover 21 can be easily detached from the base 22, so that the adjusting assembly 4 can be repaired, replaced or cleaned to prolong the service life of the flocking spring thickness measuring caliper. The upper cover 21 is installed on the base 22 by screws (not shown).

[0024] In the embodiment, the adjusting assembly 4 further comprises a transmission shaft 44 rotatably arranged between the upper cover 21 and the base 22, the gear 41, the elastic pressing element 43 and the transmission wheel 422 are sequentially arranged on the transmission shaft 44, and the two ends of the elastic pressing element 43 axially abut against the gear 41 and the transmission wheel 422 respectively. The transmission shaft 44 is used for transmission between the transmission wheel 422 and the gear 41, so as to ensure stability of transmission. When the driving wheel 421 is rotated, the driving wheel 421 drives the transmission wheel 422 to rotate under cooperation of the tooth portion 420, the transmission wheel 422 stably transmits the torsion to the gear 41 through the transmission shaft 44, and the meshing movement of the gear 41 and the rack 11 is thus stable and accurate, so that the displacement amount of the vernier 2 on the scale body 1 can be accurately controlled, the measurement accuracy is effectively improved, and the measurement error is reduced. Meanwhile, the transmission shaft 44 is also used for ensuring that the pair of end face ratchets 42 do not radially displace when the tooth portions 420 axially mesh or disengage. The driving wheel 421 is rotatably arranged at one end of the transmission shaft 44 away from the gear 41.

[0025] In the embodiment, the transmission shaft 44 and the driving wheel 421 are connected with a connecting structure, the connecting structure is used for realizing circumferential limiting of the driving wheel 421 relative to the transmission shaft 44, and simultaneously allowing the driving wheel 421 to axially move relative to the transmission shaft 44. At least one convex portion is arranged on the outer circumferential wall of the transmission shaft 44, and a corresponding concave portion is arranged on the driving wheel 421, the convex portion and the concave portion are matched to limit circumferential rotation of the driving wheel 421 relative to the transmission shaft 44. The cross-sectional shape of the transmission shaft 44 in the axial movement region of the driving wheel 421 on the transmission shaft 44 is a regular hexagon, and correspondingly, the driving wheel 421 is provided with a regular hexagonal mounting hole corresponding to the cross-sectional shape of the transmission shaft 44.

[0026] In the embodiment, a bearing 5 is arranged at the rotating connection between the transmission shaft 44 and the upper cover 21, the bearing 5 is sleeved on the transmission shaft 44, and the bearing 5 is arranged on the upper cover 21. The bearing 5 is used for reducing friction when the transmission shaft 44 rotates relative to the upper cover 21, so as to make the adjusting operation easy and sensitive, improve the measurement accuracy, reduce mechanical wear between the transmission shaft 44 and the upper cover 21, and prolong the service life of the tufting spring thickness measuring caliper. The rotating connection between the transmission shaft 44 and the driving wheel 421 is also provided with the bearing 5.

[0027] The embodiment further comprises a cover plate 6, the base 22 is provided with a mounting sink 220 matched with the driving wheel 421, the driving wheel 421 is installed in the mounting sink 220, the driving wheel 421 extends radially to a limit convex 4211, the limit convex 4211 is matched with the side wall of the mounting sink 220 in the axial and radial directions respectively, the cover plate 6 is arranged on the side of the driving wheel 421 away from the transmission wheel 422, and the cover plate 6 is detachably installed on the base 22. The mounting sink 220 is used for mounting the driving wheel 421, the limit convex 4211 is matched with the side wall of the mounting sink 220 and is used for limiting the driving wheel 421 in the axial and radial directions, so that the stability of the driving wheel 421 during rotation is ensured, and displacement or shaking of the driving wheel 421 is avoided; the cover plate 6 is detachably installed on the base 22, if the driving wheel 421 is worn or fails, maintenance personnel can remove the cover plate 6 to maintain or replace the driving wheel 421, and the maintenance difficulty and cost are reduced. The limit convex 4211 is arranged in the circumferential direction of the driving wheel 421, and the cover plate 6 is installed on the base 22 through screws (not shown in the figure).

[0028] The embodiment further comprises a screwing part 7, the screwing part 7 is arranged at one end of the driving wheel 421 away from the transmission wheel 422, and the screwing part 7 extends axially out of the cover plate 6. Measurement personnel can screw the screwing part 7, so that convenience is provided when a flocking spring thickness measuring caliper is used to measure a to-be-measured flocking spring, and the efficiency and convenience of measurement operation are improved.

[0029] In the embodiment, the gear 41 extends radially out of the vernier 2. Measurement personnel can adjust the gear 41 extending out of the vernier 2 to realize movement of the vernier 2 on the ruler body 1, so that the efficiency of measurement operation is improved, and the measurement personnel can judge whether the flocking spring thickness measuring caliper needs to be maintained according to the wear condition of the exposed gear 41, and the convenience of maintenance is improved.

[0030] The technical principle of the utility model is described in combination with specific embodiments, and these descriptions are only for explaining the principle of the utility model, and cannot be explained as the limitation of the protection scope of the utility model in any way. Based on the explanation herein, other specific embodiments of the utility model can be thought of by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the utility model.

Claims

1. A tufted spring caliper gauge for measuring the overall thickness of a tufted spring, comprising: The scale body (1), the cursor (2), a pair of clamping heads (3), the cursor (2) is slidably connected with the scale body (1), a pair of the clamping heads (3) are respectively arranged on the scale body (1) and the cursor (2), characterized by comprising: a rack (11), the rack (11) is arranged on the scale body (1); an adjusting assembly (4) is installed on the cursor (2), the adjusting assembly (4) comprises: a gear (41) rotatably installed on the cursor (2), the gear (41) is in meshing connection with the rack (11); a pair of end face ratchets (42) are rotatably installed on the cursor (2), the end face ratchets (42) are provided with tooth portions (420) between the axial end faces, at least one of the end face ratchets (42) can be axially floating to make the tooth portions (420) on both sides mesh with each other or be separated; a spring element (43) is arranged on the end face ratchet (42) axially floating and away from the tooth portion (420), a pair of the end face ratchets (42) comprise: a driving wheel (421) and a transmission wheel (422), the driving wheel (421) is used for receiving a rotating torque, and the transmission wheel (422) is in transmission connection with the gear (41).

2. A spring caliper for measuring the thickness of a pile according to claim 1, wherein: The cursor (2) comprises: an upper cover (21) and a base (22), the upper cover (21) is detachably installed on the base (22), and the scale body (1) is located between the upper cover (21) and the base (22).

3. A spring caliper for measuring the thickness of a pile according to claim 2, wherein: The adjusting assembly (4) further comprises: a transmission shaft (44), the transmission shaft (44) is rotatably arranged between the upper cover (21) and the base (22), the gear (41), the spring element (43) and the transmission wheel (422) are sequentially arranged on the transmission shaft (44), and the two ends of the spring element (43) are axially in contact with the gear (41) and the transmission wheel (422) respectively.

4. A spring caliper according to claim 3, wherein: A connecting structure is arranged at the connection between the transmission shaft (44) and the driving wheel (421), the connecting structure is used for achieving the circumferential limiting of the driving wheel (421) relative to the transmission shaft (44), and simultaneously allowing the driving wheel (421) to move axially relative to the transmission shaft (44).

5. A spring caliper gage according to claim 4, wherein: A bearing (5) is arranged at the rotating connection between the transmission shaft (44) and the upper cover (21), the bearing (5) is sleeved on the transmission shaft (44), and the bearing (5) is installed on the upper cover (21).

6. A spring caliper gage according to claim 2, wherein: Further comprising: A cover plate (6) is arranged on the base (22) and is provided with a mounting sink (220) matched with the driving wheel (421), the driving wheel (421) is installed in the mounting sink (220), the driving wheel (421) extends radially to form a limiting convex (4211), the limiting convex (4211) is in contact with the side wall of the mounting sink (220) in the axial and radial directions respectively, the cover plate (6) is arranged on the side of the driving wheel (421) away from the transmission wheel (422), and the cover plate (6) is detachably installed on the base (22).

7. A spring caliper gage according to claim 6, wherein: Further comprising: A screwing part (7) is arranged at the end of the driving wheel (421) away from the transmission wheel (422), and the screwing part (7) extends axially out of the cover plate (6).

8. A spring caliper gage according to claim 1 wherein: The gear (41) extends radially beyond the cursor (2).

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