Elastic force detection mechanism for detecting part with torsional spring

Abstract

The utility model discloses an elastic force detection mechanism for detecting a part with a torsion spring, and relates to the technical field of elastic force detection mechanisms. The device comprises a base capable of moving up and down, through holes are formed in the four corners of the base in a penetrating mode, stand columns are arranged in the through holes in a sliding mode, and a telescopic mechanism is fixedly connected between every two adjacent stand columns. A mounting groove is formed in the upper portion of the base. The torsion spring component testing device is provided with a telescopic structure, a pushing mechanism and a supporting structure, and accurate testing of torsion spring components is achieved. The telescopic mechanism enables the device to adjust the position of the base in the testing process, so that the pushing mechanism can push the torsion spring part to complete the folding action, and the testing consistency and repeatability are ensured. And meanwhile, the supporting structure can enable the equipment to keep stationary when the equipment is not used. Through cooperative work of the structures, the equipment can execute continuous and controllable reciprocating actions, so that the performance of the torsion spring part is accurately evaluated.

Description

Technical Field

[0001] The utility model belongs to the field of elastic force detection mechanisms, in particular to an elastic force detection mechanism for detecting parts with torsion springs. Background Art

[0002] The Chinese patent with publication number CN213543986U discloses a torsion spring assembly detection mechanism suitable for a door locking safety device, including a base, a clamping tool, a torsion test function unit and a force measuring assembly. The clamping tool is used to clamp the door safety device placed therein. The torsion test function unit includes a driving arm and a power unit. The driving arm runs in the front-to-back direction and performs circumferential deflection under the driving force of the power unit to drive the swing plate to rotate a predetermined angle. The force measuring assembly includes a mounting plate, a front force transmission rod and a front pressure sensor. The mounting plate is fixed on the base, and a front socket extends downward from its upper plane. The front force transmission rod and the front pressure sensor are inserted into the front socket in sequence and touch each other. When the swing plate rotates to a predetermined angle, the swing arm touches the front force transmission rod under the joint action of the torsional moment of the first torsion spring and the second torsion spring. The front pressure sensor is used to sense the top pressure exerted on the front force transmission rod.

[0003] Although the above technology discloses a detection device for torsion spring parts, the mechanical structure is too complicated due to the excessive use of mechanical structures, and the complex mechanical structure increases the skill requirements of the operator, making the operation process more cumbersome and error-prone. In addition, the debugging and configuration time of the complex structure is long, which affects the overall work efficiency.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an elastic force detection mechanism for detecting parts with torsion springs, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A spring force detection mechanism for detecting a part with a torsion spring, comprising: a base that can be moved up and down, with through holes penetrated at the four corners of the base, columns are slidably arranged inside the through holes, and a telescopic mechanism is fixedly connected between two adjacent columns; a mounting groove is provided on the top of the base, two detachable mounting plates are arranged inside the mounting groove, through grooves are penetrated on opposite sides of the mounting plates, a pushing mechanism is slidably connected in the vertical direction of the through groove, and a sensor for sensing the return of the torsion spring part is fixedly connected to the bottom of the mounting groove; two clamping plates for clamping the torsion spring part are slidably connected to the top of the base, and a supporting structure that abuts against the pushing mechanism is fixedly connected below the clamping plates close to the telescopic mechanism.

[0008] Optionally, two sliding grooves are provided on the top of the base, the interior of the sliding groove is slidably connected to a slide plate fixedly connected to the top of the clamping plate, the interior of the sliding groove is rotatably connected to a screw rod threadedly matched with the slide plate, the opposite ends of the two screw rods are fixedly connected, and the thread directions of the two screw rods are opposite.

[0009] Optionally, the telescopic mechanism includes a support plate located between two columns, an L-shaped plate is fixedly connected to the top of the support plate, a telescopic cylinder is fixedly connected to the top of the L-shaped plate close to the base, and the telescopic end of the telescopic cylinder faces above the base.

[0010] Optionally, a servo motor is fixedly connected to the lower part of the L-shaped plate close to the base, and the output end of the servo motor penetrates into the slide groove and is fixedly connected to the screw rod.

[0011] Optionally, the support structure includes a support rod located below the slide plate on one side close to the L-shaped plate, and the support rod is attached to the top of the support plate.

[0012] Optionally, guide grooves corresponding to the rectangular grooves and slot holes corresponding to the sensors are respectively formed through opposite sides of the rectangular plate.

[0013] Optionally, the pushing mechanism includes a connecting plate, two pushing rods are fixedly connected to the top of the connecting plate, extension rods are fixedly connected to the center positions below the two rectangular grooves, connecting grooves are penetrated on opposite sides of the pushing rods, and a first spring is fixedly connected between the bottom of the inner wall of the connecting groove and the bottom of the extension rods.

[0014] Optionally, the cross section of the column is in an I-shape, and a second spring fixedly connected to the bottom of the base is sleeved around the outer wall of the column.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] The utility model is equipped with a telescopic structure, a pushing mechanism and a supporting structure, which realizes accurate testing of torsion spring parts. The telescopic mechanism enables the device to adjust the position of the base during the test so that the pushing mechanism can push the torsion spring parts to complete the folding action, ensuring the consistency and repeatability of the test. At the same time, the supporting structure can keep the device stationary when not in use. The coordinated work of these structures enables the device to perform continuous and controllable reciprocating motion, thereby accurately evaluating the performance of the torsion spring parts, and the operation is simple and convenient, the structure is simple, and the detection efficiency of the torsion spring parts is improved.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] In the figure:

[0020] Figure 1 It is a schematic diagram of the upper structure of the elastic force detection mechanism;

[0021] Figure 2 It is a schematic diagram of the structure below the elastic force detection mechanism;

[0022] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the elastic force testing machine;

[0023] Figure 4 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Base; 2. Through hole; 3. Column; 4. Mounting slot; 5. Mounting plate; 6. Through slot; 7. Sensor; 8. Clamping plate; 9. Slide slot; 10. Slide plate; 11. Screw; 12. Support plate; 13. L-shaped plate; 14. Telescopic cylinder; 15. Servo motor; 16. Support rod; 17. Slot hole; 18. Connecting plate; 19. Push rod; 20. Extension rod; 21. First spring; 22. Second spring.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The utility model will now be further described in detail with reference to the accompanying drawings.

[0028] See also Figure 1-4 As shown, in this embodiment, a spring force detection mechanism for detecting a torsion spring part is provided, comprising a base 1 that can move up and down, the four corners of the base 1 are penetrated with through holes 2, the inside of the through holes 2 is slid with a column 3, and a telescopic mechanism is fixedly connected between two adjacent columns 3; a mounting slot 4 is provided above the base 1, and two detachable mounting plates 5 are arranged inside the mounting slot 4, and the mounting plates 5 are fixed inside the mounting slot 4 by bolts, and a through slot 6 is penetrated on the opposite side of the mounting plate 5, and a push mechanism is slidably connected in the vertical direction of the through slot 6, and a sensor 7 for sensing the return of the torsion spring part is fixedly connected to the bottom of the mounting slot 4; through the vertical sliding push mechanism, the operator can easily adjust the position of the torsion spring part, thereby improving the efficiency and convenience of the test. By sliding the column 3 in the through hole 2, the stable support and height adjustment of the base 1 can be achieved, ensuring the accuracy and repeatability during the test.

[0029] Two clamping plates 8 for clamping torsion spring parts are slidably connected to the upper part of the base 1, and a support structure that abuts against the pushing mechanism is fixedly connected to the lower part of the clamping plate 8 near the telescopic mechanism. The support structure is used to support the base 1 when no elastic force detection is performed to prevent the base 1 from sinking due to the weight of the parts, thereby improving the stability of the device in an idle state.

[0030] See also Figure 3 As shown, in this embodiment, two slide grooves 9 are provided on the top of the base 1, and a slide plate 10 fixedly connected to the top of the clamping plate 8 is slidably connected inside the slide groove 9, and a screw rod 11 threadedly matched with the slide plate 10 is rotatably connected inside the slide groove 9, and the opposite ends of the two screw rods 11 are fixedly connected, and the thread directions of the two screw rods 11 are opposite. By configuring the two screw rods 11, the relative movement of the two clamping plates 8 can be synchronously controlled, thereby ensuring the alignment accuracy of the clamping plates 8 during the entire test process. This synchronization mechanism prevents instability caused by position mismatch and ensures stability and accuracy when clamping the torsion spring parts.

[0031] See also Figure 1As shown, in this embodiment, the telescopic mechanism includes a support plate 12 located between two columns 3, an L-shaped plate 13 is fixedly connected to the upper part of the support plate 12, and a telescopic cylinder 14 is fixedly connected to the upper part of the L-shaped plate 13 close to the base 1, and the telescopic end of the telescopic cylinder 14 faces the upper part of the base 1. Placing the support plate 12 between the two columns 3 increases the stability of the entire structure. The use of the support plate 12 optimizes the space and reduces the structural complexity by concentrating the support points, thereby increasing the overall durability of the device.

[0032] See also Figure 3 As shown, in this embodiment, a servo motor 15 is fixedly connected to the lower part of the L-shaped plate 13 near the base 1, and the output end of the servo motor 15 is inserted into the slide groove 9 and fixedly connected between the screw rod 11. The servo motor 15 is fixed to one side of the L-shaped plate 13 by bolts.

[0033] See also Figure 2 As shown, in this embodiment, the support structure includes a support rod 16 located below the slide plate 10 near the side of the L-shaped plate 13, and the support rod 16 is attached to the top of the support plate 12. The arrangement of the support rod 16 reduces the occurrence of the base 1 sliding up and down randomly.

[0034] See also Figure 1 As shown, in this embodiment, guide grooves corresponding to the rectangular grooves and slot holes 17 corresponding to the sensors 7 are respectively formed through the opposite sides of the rectangular plate.

[0035] See also Figure 2 , 4 As shown, in this embodiment, the pushing mechanism includes a connecting plate 18, two pushing rods 19 are fixedly connected to the top of the connecting plate 18, and the center positions below the two rectangular grooves are fixedly connected to extension rods 20, and the opposite sides of the pushing rods 19 are penetrated by connecting grooves, and the bottom of the inner wall of the connecting groove and the bottom of the extension rods 20 are fixedly connected to the first spring 21. The provision of the extension rods 20 reduces the occurrence of the subsequent push rod 19 being suspended in the air, thereby improving the stability during subsequent use.

[0036] See also Figure 2 As shown, in this embodiment, the cross section of the column 3 is an "I" shape, and the outer wall of the column 3 is sleeved with a second spring 22 fixedly connected to the bottom of the base 1. The second spring 22 is provided to reduce the situation that the base 1 cannot rebound after being pressed down.

[0037] Working principle: Place the torsion spring hinge on top of the mounting plate 5 and prepare for testing. Turn on the servo motor 15 so that the screw 11 fixedly connected to the motor output end starts to rotate. The screw 11 drives the two clamping plates 8 to slide along the preset track until the hinge is tightly clamped. At this time, the support rod 16 under the clamping plate 8 cancels the contact with the support plate 12. Reduce the occurrence of the subsequent base 1 being unable to descend, and then turn on the telescopic cylinder 14 to push the base 1 downward and apply pressure to the hinge. When the base 1 moves downward, the second spring 22 located below it is first compressed. At the same time, the extension rod 20 slides to the bottom of the connecting groove, and the push rod 19 slides out of the rectangular groove. As the push rod 19 slides out, the side plates of the torsion spring hinge begin to shrink. During this process, the angle of the hinge is adjusted according to the scale on the clamping plate 8 until the specified position required for the test is reached.

[0038] After reaching the designated position, the cylinder is restarted to cancel the downward pressure on the base 1. After the pressure is canceled, the first spring 21 and the second spring 22 are elastically deformed at the same time, pushing the base 1 to move upward. As the base 1 moves upward, the torsion spring drives the side plate to move above the mounting plate 5. After the side plate contacts the mounting plate 5, the sensor 7 captures this position to verify the elastic force of the torsion spring and whether the side plate is correctly returned to its original position. The torsion spring hinge tested in this application is the hinge with publication number CN106763131A in the prior art.

[0039] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An elastic force detection mechanism for detecting parts with torsion springs, characterized in that: include: A base (1) that can move up and down, wherein four corners of the base (1) are penetrated by through holes (2), columns (3) are slidably arranged inside the through holes (2), and a telescopic mechanism is fixedly connected between two adjacent columns (3); a mounting groove (4) is arranged above the base (1), two detachable mounting plates (5) are arranged inside the mounting groove (4), through grooves (6) are penetrated on opposite sides of the mounting plates (5), a pushing mechanism is slidably connected in the vertical direction of the through groove (6), and a sensor (7) for sensing the return of the torsion spring part is fixedly connected to the bottom of the mounting groove (4); two clamping plates (8) for clamping the torsion spring part are slidably connected above the base (1), and a supporting structure that is in abutment with the pushing mechanism is fixedly connected below the clamping plate (8) close to the telescopic mechanism.

2. The elastic force detection mechanism for detecting parts with torsion springs according to claim 1, characterized in that: Two slide grooves (9) are provided on the top of the base (1), and a slide plate (10) fixedly connected to the top of the clamping plate (8) is slidably connected inside the slide groove (9), and a screw rod (11) threadedly matched with the slide plate (10) is rotatably connected inside the slide groove (9), and the opposite ends of the two screw rods (11) are fixedly connected, and the thread directions of the two screw rods (11) are opposite.

3. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 2, characterized in that: The telescopic mechanism comprises a support plate (12) located between two upright posts (3); an L-shaped plate (13) is fixedly connected above the support plate (12); a telescopic cylinder (14) is fixedly connected above a side of the L-shaped plate (13) close to the base (1); and a telescopic end of the telescopic cylinder (14) faces above the base (1).

4. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 3, characterized in that: A servo motor (15) is fixedly connected to the lower part of the L-shaped plate (13) close to the base (1), and the output end of the servo motor (15) penetrates into the slide groove (9) and is fixedly connected to the screw rod (11).

5. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 4, characterized in that: The support structure comprises a support rod (16) located below the slide plate (10) on one side close to the L-shaped plate (13), and the support rod (16) is attached to the top of the support plate (12).

6. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 5, characterized in that: It also comprises a rectangular groove, and the opposite sides of the mounting plate (5) are respectively penetrated by guide grooves corresponding to the rectangular groove and slot holes (17) corresponding to the sensor (7).

7. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 6, characterized in that: The pushing mechanism comprises a connecting plate (18), two pushing rods (19) are fixedly connected above the connecting plate (18), extension rods (20) are fixedly connected at the center positions below the two rectangular grooves, connecting grooves are penetrated through the opposite sides of the pushing rods (19), and a first spring (21) is fixedly connected between the bottom of the inner wall of the connecting groove and the bottom of the extension rods (20).

8. The elastic force detection mechanism for detecting a part with a torsion spring according to claim 1, characterized in that: The cross section of the column (3) is in the shape of an I-shaped letter "I". The outer wall of the column (3) is sleeved with a second spring (22) fixedly connected to the bottom of the base (1).

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