Finger pressing force detection equipment

Abstract

The utility model discloses finger pressing force detection equipment, which is characterized by comprising a base, a clamp and a lifting seat are respectively arranged on the base, the lifting seat can lift up and down relative to the base, the clamp is positioned above the lifting seat, the clamp is provided with a clamping cavity with an opening on one side, a metal sheet pressing finger is clamped in the clamping cavity, and the metal sheet pressing finger is positioned above the lifting seat. The metal sheet pressing finger partially protrudes out of the upper portion of the lifting base through the opening of the clamping cavity, a pressure sensor is arranged on the lifting base and corresponds to the position under the metal sheet pressing finger, and an air cylinder capable of driving the lifting base to move up and down relative to the base is arranged on the base. Through the cooperative design of cylinder driving, the lifting seat, the modular clamp and the pressure sensor, the problems of low precision, poor efficiency and the like in traditional finger pressing detection are solved, and the detection efficiency and reliability are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of finger pressure detection equipment. BACKGROUND

[0002] In the field of electronic equipment, industrial fixture and precision manufacturing, the force detection of metal sheet finger (such as spring sheet, contact point etc.) is the key link to ensure product performance. For example, the trigger force of keyboard key, the contact pressure of battery contact point, the clamping force of industrial fixture etc. all need to be accurately controlled. Traditional detection methods mostly rely on artificial feel test or simple mechanical device, which has the following problems: insufficient accuracy: artificial test is highly subjective, easily affected by operator experience, difficult to quantify pressure value, leading to poor product quality consistency. Low efficiency: manual adjustment of finger position or replacement of detection tool is time-consuming and labor-intensive, which cannot meet the needs of mass production. Dynamic test is missing: existing equipment mostly targets static pressure detection, which is difficult to simulate the dynamic scene of repeated pressing in actual use, and cannot evaluate the fatigue life of finger. Therefore, a finger force detection equipment is urgently needed. UTILITY MODEL CONTENT

[0003] The utility model aims at at least in a certain extent solve one of the problems existing in prior art related, and for this purpose, the utility model provides a kind of finger force detection equipment.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of finger force detection equipment, including base, the base is respectively provided with clamp and lifting seat, the lifting seat can be up and down relative to base and move, the clamp is located above lifting seat, the clamp has the clamping cavity of one side opening, the clamping cavity is clamped with metal sheet finger, the metal sheet finger is partially protruding above lifting seat via clamping cavity opening, pressure sensor is located corresponding below metal sheet finger on lifting seat, the base is provided with cylinder that can drive lifting seat and move up and down relative to base.

[0006] In an embodiment, the clamp includes clamping table and clamping plate respectively provided on the base, the clamping cavity is formed between clamping table and clamping plate, and the clamping plate is fixed on the clamping table by screwing.

[0007] In an embodiment, a plurality of positioning grooves capable of positioning and placing pressure sensor are arranged on the lifting seat along the same axis at intervals, and a wire hole is penetrated on one side of the positioning groove.

[0008] In one embodiment, the lifting seat comprises a first connecting plate and a second connecting plate arranged in a top-bottom manner, the second connecting plate is connected with the driving shaft of the air cylinder, the positioning groove is formed on the first connecting plate, and an active gap is left between the first connecting plate and the second connecting plate for the movement of the first connecting plate relative to the second connecting plate; wherein one end of the first connecting plate is hinged with the second connecting plate, the other end of the first connecting plate is hinged with a movable seat, the first connecting plate is provided with an adjusting structure connected with the movable seat, and the relative distance between the first connecting plate and the movable seat is adjusted through the adjusting structure.

[0009] In one embodiment, the adjusting structure comprises a guide shaft and a screw rod arranged in a vertical interval on the second connecting plate respectively, the screw rod is rotatably arranged on the second connecting plate through a bearing, the movable seat is movably sleeved on the guide shaft through a linear bearing, and the movable seat is threadedly connected with the screw rod, and a knob is arranged at one end of the screw rod.

[0010] In one embodiment, the second connecting plate is provided with a locking member capable of locking the rotation of the screw rod relative to the second connecting plate.

[0011] In one embodiment, the locking member comprises a spring and a clamping block, the knob is recessed on one side with a clamping groove coaxially arranged with the screw rod, the clamping groove is uniformly distributed with a plurality of tooth grooves along the circumferential side wall, the second connecting plate is protruded on one side with a protruding ring coaxially arranged with the screw rod, the protruding ring is arranged in a non-circular shape in cross section, the clamping block is sleeved on the protruding ring and can move up and down along the axial direction of the protruding ring, the clamping block is uniformly distributed with a plurality of protruding teeth capable of cooperating with the tooth grooves along the circumference, and the spring is sleeved on the protruding ring and abuts between the clamping block and the second connecting plate, so that the protruding teeth and the tooth grooves are kept in engagement state through the spring.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a mutual coordination design of air cylinder driving, lifting seat, modular fixture and pressure sensor, solves the problems of low precision and poor efficiency in traditional pressure finger detection, and significantly improves the detection efficiency and reliability. ACCURATE DRAWINGS

[0014] Figure 1 It is one of the perspective views of the pressure finger force detection equipment in the utility model;

[0015] Figure 2 It is one of the sectional views of the pressure finger force detection equipment in the utility model;

[0016] Figure 3 It is the second perspective view of the pressure finger force detection equipment in the utility model;

[0017] Figure 4It is the cross section view two of the finger pressing force detection equipment in the utility model;

[0018] Figure 5 It is the cross section view two of the finger pressing force detection equipment in the utility model; Figure 4 The A place amplification schematic view of the utility model. Specific embodiments

[0019] The following specific implementation content provides for the implementation of the utility model various different embodiments or examples. Of course, these are only examples and are not intended to be limiting. In addition, repeated labels may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model, and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0020] As Figures 1 to 5 shown in a kind of finger pressing force detection equipment, including base 1, the base 1 is separately provided with clamp 2 and lifting seat 3, the lifting seat 3 can be up and down relative to base 1 active, the clamp 2 is located above lifting seat 3, the clamp 2 has a one-side opening clamping cavity 4, the clamping cavity 4 is clamped with metal sheet finger press 5, the metal sheet finger press 5 is partially extruded above lifting seat 3 via clamping cavity 4 opening, the lifting seat 3 is correspondingly located below metal sheet finger press 5 and is equipped with pressure sensor 6, the base 1 is equipped with cylinder 7 that can drive lifting seat 3 to move up and down relative to base 1.

[0021] The utility model discloses through the mutual coordination design of cylinder drive, lifting seat, modularization clamp and pressure sensor, solve the problem such as low precision, poor efficiency in traditional finger detection, significantly improve the detection efficiency and reliability.

[0022] Specifically, the metal sheet finger press is clamped in the clamping cavity in the clamp, and the test end of the metal sheet finger press is extended to the outside of the clamp and located directly above the pressure sensor, and then the lifting seat is driven upward by the cylinder to make the pressure sensor position and press on the test end of the metal sheet finger press. The lifting stroke of the lifting seat is accurately controlled by the cylinder, the pressure sensor is combined to collect the force data of the finger in real time, dynamic pressure detection (such as press-release cycle test) is realized, and the quantitative pressure curve can be output, which overcomes the subjective error of manual test.

[0023] And integrated sensor signal and cylinder air pressure regulating module, can dynamically correct pressure value, ensure that the test process is stable and reliable.

[0024] Further, the clamp 2 comprises a clamping table 21 and a clamping plate 22 arranged on the base 1 respectively, the clamping cavity 4 is formed between the clamping table 21 and the clamping plate 22, and the clamping plate 22 is fixed on the clamping table 21 by screwing. Further, the metal sheet pressing finger can be fixed and clamped in the clamping cavity by screwing, and the test end of the metal sheet pressing finger can protrude outside the clamp and be in a suspended state, and when the pressure sensor moves upward with the lifting seat, the pressure sensor can directly press on the test end of the metal sheet pressing finger for stress testing.

[0025] Further, the lifting seat 3 is provided with a plurality of positioning grooves 23 capable of positioning and placing the pressure sensor 6 along the same axis, and a wire passing hole 24 is formed on one side of the positioning groove 23. Further, the pressure sensor is positioned and placed in the positioning groove, and the wire can be combed and led out through the wire passing hole; and a plurality of pressure sensors can simultaneously test a plurality of test ends of the metal sheet pressing finger, supporting multi-point pressure detection.

[0026] Further, the lifting seat 3 comprises a first connecting plate 31 and a second connecting plate 32 arranged in an up-down manner, the second connecting plate 32 is connected with the driving shaft of the air cylinder 7, the positioning groove 23 is formed on the first connecting plate 31, and an active gap is left between the first connecting plate 31 and the second connecting plate 32 for the movement of the first connecting plate 31 relative to the second connecting plate 32; wherein one end of the first connecting plate 31 is hinged with the second connecting plate 32, the other end of the first connecting plate 31 is hinged with a movable seat 33, and the first connecting plate 31 is provided with an adjusting structure 8 connected with the movable seat 33, and the relative distance between the first connecting plate 31 and the movable seat 33 is adjusted by the adjusting structure 8.

[0027] Specifically, one end of the first connecting plate is rotatably connected with the second connecting plate, so that the rotation of the first connecting plate can make the plurality of pressure sensors positioned thereon be as much as possible on the same horizontal plane, effectively avoiding the inclination and unevenness of the surface of the first connecting plate due to machining errors, which can cause a large difference in the horizontal height of the plurality of pressure sensors relative to the first connecting plate, resulting in deviation of the detection data, and the rotation adjustment between the first connecting plate and the second connecting plate can be realized by the cooperation of the movable seat and the adjusting structure.

[0028] Further, the adjusting structure 8 comprises guide shafts 81 and screw rods 82 arranged vertically and spaced apart on the second connecting plate 32, the screw rods 82 are rotatably arranged on the second connecting plate 32 through bearings, the movable seat 33 is movably sleeved on the guide shaft 81 through a linear bearing, and the movable seat 33 is threadedly connected with the screw rod 82, and a knob 83 is arranged at one end of the screw rod 82. Further, the user can rotate the knob to make the screw rod rotate, and then drive the movable seat to move up and down relative to the second connecting plate.

[0029] Further, the second connecting plate 32 is provided with a locking member 9 capable of locking the rotation of the screw rod 82. Further, the locking member 9 comprises a spring 91 and a clamping block 92, the knob 83 is recessed on one side and provided with a clamping groove 93 coaxial with the screw rod 82, the clamping groove 93 is uniformly distributed along the circumferential side wall and provided with a plurality of tooth grooves 94, the second connecting plate 32 is protruded on one side and provided with a protruding ring 95 coaxial with the screw rod 82, the protruding ring 95 is provided with a non-integer circular cross-section, the clamping block 92 is fitted on the protruding ring 95 and can move up and down along the axial direction of the protruding ring 95, the clamping block 92 is uniformly distributed along the circumference and provided with a plurality of protruding teeth 96 capable of cooperating with the tooth grooves 94, and the spring 91 is sleeved on the protruding ring 95 and abuts between the clamping block 92 and the second connecting plate 32, so that the protruding teeth 96 and the tooth grooves 94 are kept in engagement state through the spring 91.

[0030] Specifically, the clamping block is fitted on the outer side of the protruding ring, because the cross-section of the protruding ring is non-integer circular, so that the clamping block can only displace along the axial direction of the protruding ring and cannot rotate relative to the protruding ring, and then the protruding teeth in the clamping block and the tooth grooves in the knob cooperate through the spring, so that the protruding teeth are kept in engagement in the tooth grooves under the action of the spring in the initial state, at this time, the knob is in a locked state relative to the second connecting plate, thereby effectively avoiding the friction of the knob caused by accidental touch or preventing displacement caused by vibration during the test from causing rotation of the plurality of pressure sensors, and ensuring the stability of the data, when it is necessary to rotate the knob, the user pushes the clamping block to make the protruding teeth in the clamping block disengage from the tooth grooves, at this time the knob restores the rotatable state, thereby realizing the adjustment displacement driving of the movable seat.

[0031] The basic principle and main characteristics of the present application and the advantages of the present application are shown and described in combination with the drawings, and those skilled in the art should understand that the present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principle of the present application, without departing from the spirit and scope of the present application, the present application will have various changes and improvements, these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A finger pressure detection device, characterized by: The utility model provides a metal sheet pressure finger testing device, including base (1), the base (1) is provided with clamp (2) and lifting seat (3) respectively, lifting seat (3) can be up and down lifting activity relative to base (1), clamp (2) is located above lifting seat (3), clamp (2) has one side opening's clamping cavity (4), the metal sheet pressure finger (5) is clamped in clamping cavity (4), the metal sheet pressure finger (5) is partially through clamping cavity (4) opening and protrudes above lifting seat (3), lifting seat (3) is provided with pressure sensor (6) correspondingly below the metal sheet pressure finger (5), base (1) is provided with the air cylinder (7) of driving lifting seat (3) relative to base (1) moves up and down.

2. The finger pressure detection device according to claim 1, wherein: The clamp (2) includes a clamping table (21) and a clamping plate (22) provided on the base (1), respectively, the clamping cavity (4) is formed between the clamping table (21) and the clamping plate (22), and the clamping plate (22) is fixed on the clamping table (21) by screwing.

3. The finger pressure detection device according to claim 1, wherein: The lifting seat (3) is provided with a plurality of positioning grooves (23) capable of positioning the pressure sensor (6) along the same axis and spaced apart, and a wire passing hole (24) penetrates one side of the positioning groove (23).

4. The finger pressure detecting apparatus according to claim 3, wherein: The lifting seat (3) includes a first connecting plate (31) and a second connecting plate (32) arranged in a top-down manner, the second connecting plate (32) is connected with the drive shaft of the air cylinder (7), the positioning groove (23) is formed on the first connecting plate (31), and a movement gap is left between the first connecting plate (31) and the second connecting plate (32) for the movement of the first connecting plate (31) relative to the second connecting plate (32); wherein one end of the first connecting plate (31) is hinged to the second connecting plate (32), the other end of the first connecting plate (31) is hinged to a movable seat (33), and the first connecting plate (31) is provided with an adjusting structure (8) connected with the movable seat (33), and the relative distance between the first connecting plate (31) and the movable seat (33) is adjusted through the adjusting structure (8).

5. The finger pressure detecting apparatus according to claim 4, wherein: The adjusting structure (8) includes guide shafts (81) and screw rods (82) vertically and spaced apart on the second connecting plate (32), respectively, the screw rod (82) is rotatably arranged on the second connecting plate (32) through a bearing, the movable seat (33) is movably sleeved on the guide shaft (81) through a linear bearing, and the movable seat (33) is threadedly connected with the screw rod (82), and a knob (83) is arranged at one end of the screw rod (82).

6. The finger pressure detecting apparatus according to claim 5, wherein: The second connecting plate (32) is provided with a locking member (9) capable of locking the rotation of the screw rod (82) relative thereto.

7. The finger pressure detection device according to claim 6, wherein: The locking member (9) comprises a spring (91) and a clamping block (92), one side of the knob (83) is concave and has a clamping groove (93) coaxially arranged with the screw rod (82), the clamping groove (93) is uniformly arranged with a plurality of tooth grooves (94) along the circumferential side wall, one side of the second connecting plate (32) is convex and has a convex ring (95) coaxially arranged with the screw rod (82), the cross section of the convex ring (95) is non-circular, the clamping block (92) is fitted on the convex ring (95) and can move up and down along the axial direction of the convex ring (95), the clamping block (92) is uniformly arranged with a plurality of convex teeth (96) which can cooperate with the tooth grooves (94) along the circumference, and the spring (91) is sleeved on the convex ring (95) and abuts between the clamping block (92) and the second connecting plate (32), so that the convex teeth (96) and the tooth grooves (94) are kept in engagement state through the spring (91).

Images