Encoder calibration device

Abstract

The utility model provides an encoder calibration device, and belongs to the technical field of encoders. Comprising a positioning assembly and a lifting assembly, the lifting assembly comprises a fixed end, a damping spring and a threaded rod, the inner wall of the fixed end is fixedly connected with the bottom end of the damping spring, the top end of the damping spring is fixedly connected with the bottom end of the threaded rod, and the positioning assembly comprises a threaded ring, a positioning plate, a connecting piece, a connecting ring and a limiting piece. The threaded rod is sleeved with the threaded ring, the outer wall of the threaded sleeve is connected with one ends of a plurality of limiting pieces, the other ends of the limiting pieces are connected with the connecting ring, the two sides of the connecting ring are connected with a plurality of connecting pieces, the connecting pieces are all connected with the positioning plate, and the encoder is placed on the workbench. The encoder enables the damping spring at the bottom of the threaded rod to be compressed under the action of gravity, so that the threaded ring arranged on the threaded rod in a sleeving mode rotates upwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to encoder technical field, especially a kind of encoder calibration device. BACKGROUND

[0002] Encoder, mainly refers to a kind of signal that can be received by people and is converted into the signal that can be received by people, while with the increasing demand of people for encoder, so that encoder gradually evolves into multiple different kinds and can be adapted to multiple different equipment.

[0003] In prior art, mechanical position of encoder is often manually calibrated after internal signal calibration, so that it can be connected to the device for signal conversion.

[0004] Since encoder is often manually calibrated, its mechanical calibration precision is low, and it is not convenient to adjust the fine angle of encoder, and encoder is easily affected by external environment during calibration process. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to provide an encoder calibration device, which ensures accurate rotation and avoids damage from external environment during calibration process.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] An encoder calibration device includes a positioning assembly and a lifting assembly, the lifting assembly includes a fixed end, a shock-absorbing spring and a threaded rod, the inner wall of the fixed end is fixedly connected with the bottom end of the shock-absorbing spring, and the top end of the shock-absorbing spring is fixedly connected with the bottom end of the threaded rod.

[0008] The positioning assembly includes a threaded ring, a positioning plate, a connecting piece, a connecting ring and a limiting piece, the threaded ring is sleeved on the threaded rod, the outer wall of the threaded ring is connected with one end of the limiting piece, the other end of the limiting piece is connected with the connecting ring, the connecting ring is connected with the connecting piece on both sides, and the connecting piece is connected with the positioning plate.

[0009] Preferably, the top end of the threaded rod is fixedly connected with the bottom end of the supporting plate, the supporting plate is provided with a plurality of through openings, and the positioning plate can pass through the through opening.

[0010] Preferably, the top end of the supporting plate is provided with a rotating shaft, the top end of the rotating shaft is provided with a first gear, and the first gear is a transmission gear.

[0011] Preferably, the first gear is meshed with a second gear on one side, and the second gear is a driving gear.

[0012] Preferably: the top end of the second gear is provided with a connecting rod, the top end of the connecting rod penetrates through the top end of the box and extends out, and the top end of the connecting rod is provided with a rotating knob.

[0013] Preferably: the top end of the first gear is provided with a workbench, and the workbench is fixedly connected with the first gear.

[0014] Preferably: a notch is formed in the top end of the box, and the opening direction of the notch is upward.

[0015] Preferably: the bottom wall of the box is fixedly connected with the bottom end of the fixed end.

[0016] Compared with the prior art, the encoder calibration device has the following beneficial effects:

[0017] 1. The encoder is placed on the workbench, and the encoder is compressed under the action of gravity to make the damping spring at the bottom of the threaded rod, so that the threaded ring sleeved on the threaded rod rotates upward, and then the entire positioning assembly moves upward together, and the positioning plate can pass through the through hole and extend out; different sizes of encoders have different weights, and the length of the positioning plate extending out is proportional to the weight of the encoder, the positioning plate can protect and position the encoder, and ensure that the position of the encoder is accurate and stable during calibration; the protection structure is simple in design and convenient to operate, and does not need complex installation and adjustment steps, thereby reducing the use threshold.

[0018] 2. The rotating knob controls the connecting rod to drive the second gear to rotate, the second gear drives the first gear to rotate after rotating, and the transmission ratio between the second gear and the first gear is 1:3, that is, the second gear rotates three circles, and the first gear rotates one circle, so that the rotation accuracy is ensured, and the first gear is also prevented from being affected or damaged by the external environment during calibration, thereby improving the safety of operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of an encoder calibration device.

[0020] Figure 2 It is a three-dimensional structure schematic view of the inside of the box of an encoder calibration device.

[0021] Figure 3 It is a three-dimensional structure schematic view of a telescopic rod of an encoder calibration device.

[0022] Figure 4 It is a three-dimensional structure schematic view of a rotating rod of an encoder calibration device. Figure 3 It is a structure schematic view of a positioning device.

[0023] Figure 5 It is a three-dimensional structure schematic view of a rotating rod of an encoder calibration device.

[0024] [Reference signs]

[0025] 1, box; 2, workbench; 3, support plate; 4, through hole; 5, positioning assembly; 51, threaded ring; 52, positioning plate; 53, connecting piece; 54, connecting ring; 55, limiting piece; 6, first gear; 7, second gear; 8, connecting rod; 9, lifting assembly; 91, fixed end; 92, shock spring; 93, threaded rod; 10, rotating shaft; 11, rotating knob; 12, notch. DETAILED DESCRIPTION

[0026] The encoder calibration device provided by the utility model will be described in detail below in combination with the drawings and specific embodiments. Meanwhile, it is pointed out here that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and some skilled persons in the art can also use other alternative ways to implement them; moreover, the drawings are only used to describe the embodiments more specifically, and are not intended to specifically limit the utility model.

[0027] Referring to Figures 1-5 An encoder calibration device comprises a positioning assembly 5 and a lifting assembly 9. The lifting assembly 9 comprises a fixed end 91, a shock spring 92 and a threaded rod 93. The inner wall of the fixed end 91 is fixedly connected with the bottom end of the shock spring 92, and the top end of the shock spring 92 is fixedly connected with the bottom end of the threaded rod 93.

[0028] The positioning assembly 5 comprises a threaded ring 51, a positioning plate 52, connecting pieces 53, a connecting ring 54 and limiting pieces 55. The threaded ring 51 is sleeved on the threaded rod 93. The outer wall of the threaded ring 51 is connected with one end of the limiting pieces 55. The other end of the limiting pieces 55 is connected with the connecting ring 54. The connecting ring 54 is connected with the connecting pieces 53 on both sides. The connecting pieces 53 are connected with the positioning plate 52.

[0029] During calibration, the encoder is placed on the workbench 2. Under the action of gravity, the shock spring 92 at the bottom of the threaded rod 93 is compressed, and the threaded ring 51 sleeved on the threaded rod 93 is rotated upward, and then the entire positioning assembly 5 moves upward together.

[0030] The positioning plate 52 can pass through the through hole 4 and extend out. Different sizes of encoders have different weights. The length of the extension of the positioning plate 52 is proportional to the weight of the encoder. The positioning plate 52 can protect and position the encoder, ensuring that the position of the encoder is accurate and stable during the calibration process. The protection structure is simple in design and convenient to operate, and does not need complex installation and adjustment steps, thereby reducing the use threshold.

[0031] Subsequently, the connecting rod 8 drives the second gear 7 to rotate through the knob 11, and the second gear 7 drives the first gear 6 to rotate after rotating, the transmission ratio between the second gear 7 and the first gear 6 is 1:3, that is, the second gear 7 rotates three circles, and the first gear 6 rotates one circle, which ensures accurate rotation and avoids damage to the calibration process by external environment, improving the safety of operation.

[0032] As shown in Figure 1 , Figure 2 and Figure 5 , the top end of the threaded rod 93 is fixedly connected with the bottom end of the support plate 3, a plurality of through holes 4 are arranged on the support plate 3, and a plurality of positioning plates 52 can pass through the plurality of through holes 4. The plurality of through holes 4 are arranged in a quarter circle shape, which can ensure that the positioning plate 52 passes through the through hole 4.

[0033] The top end of the support plate 3 is provided with a rotating shaft 10, and the top end of the rotating shaft 10 is provided with a first gear 6. The first gear 6 is a transmission gear, and the transmission ratio between the second gear 7 and the first gear 6 is 1:3, that is, the second gear 7 rotates three circles, and the first gear 6 rotates one circle.

[0034] The first gear 6 is meshed with the second gear 7 on one side, and the second gear 7 is a driving gear. Meshing refers to a kind of transmission relationship between two mechanical parts, which is called meshing transmission. Gear transmission is the most typical meshing transmission and is the most widely used transmission form.

[0035] The top end of the second gear 7 is provided with a connecting rod 8, the top end of the connecting rod 8 penetrates through the top end of the box body 1 and extends out, and the top end of the connecting rod 8 is provided with a knob 11. The connecting rod 8 drives the second gear 7 to rotate through the knob 11.

[0036] The top end of the first gear 6 is provided with a workbench 2, and the workbench 2 is fixedly connected with the first gear 6. The workbench 2 can be made of high-quality and high-performance rubber material. The workbench 2 contacts the output shaft of the encoder and protects the placed encoder.

[0037] The top end of the box body 1 is provided with a slot 12, and the opening direction of the slot 12 is upward. The bottom wall of the box body 1 is fixedly connected with the bottom end of the fixed end 91. The damping spring 92 inside the fixed end 91 maintains normal height when the encoder is not placed, and at the same time, the positioning assembly 5 is located at the bottom of the threaded rod 93. With the placement of the encoder, the positioning assembly 5 moves upward under the gravity of the encoder.

[0038] The technical scheme provided by the utility model discloses that the encoder is placed on the workbench 2, the encoder makes the damping spring 92 of the bottom of the threaded rod 93 compress under the action of gravity, makes the threaded ring 51 on the threaded rod 93 rotate upwards, then the whole positioning assembly 5 moves upwards together, the positioning plate 52 can pass through the through hole 4 and extend, the encoders of different sizes have different weights;

[0039] Then the connecting rod 8 is controlled by the knob 11 to drive the second gear 7 to rotate, the second gear 7 drives the first gear 6 to rotate after rotating, the transmission ratio between the second gear 7 and the first gear 6 is 1:3, that is, the second gear 7 rotates three circles, the first gear 6 rotates one circle, ensures that the rotation is accurate, also avoids the influence or damage of external environment in the calibration process, improves the safety of operation.

[0040] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding to the utility model, the specific details have been explained in the above preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details to the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. have not been explained in detail.

[0041] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for the ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can also be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. An encoder calibration apparatus, characterized by, Including positioning assembly (5) and lifting assembly (9), the lifting assembly (9) includes fixed end (91), damping spring (92), threaded rod (93), the inner wall of the fixed end (91) is fixedly connected with the bottom end of the damping spring (92), the top end of the damping spring (92) is fixedly connected with the bottom end of the threaded rod (93); The positioning assembly (5) includes threaded ring (51), positioning plate (52), connecting piece (53), connecting ring (54) and limiting piece (55); the threaded ring (51) is sleeved on the threaded rod (93), the outer wall of the threaded ring (51) is connected with one end of a plurality of limiting pieces (55), the other end of a plurality of limiting pieces (55) is connected with the connecting ring (54), the connecting ring (54) is connected with a plurality of connecting pieces (53) on both sides, a plurality of connecting pieces (53) are connected with the positioning plate (52).

2. The encoder calibration apparatus of claim 1, wherein, The top end of the threaded rod (93) is fixedly connected with the bottom end of the support plate (3), a plurality of through openings (4) are formed in the support plate (3), and a plurality of positioning plates (52) can pass through the through openings (4).

3. The encoder calibration apparatus of claim 2, wherein, The top end of the support plate (3) is provided with a rotating shaft (10), the top end of the rotating shaft (10) is provided with a first gear (6), and the first gear (6) is a transmission gear.

4. The encoder calibration apparatus of claim 3, wherein, One side of the first gear (6) is in meshing transmission with a second gear (7), and the second gear (7) is a driving gear.

5. The encoder calibration apparatus of claim 4, wherein, The top end of the second gear (7) is provided with a connecting rod (8), the top end of the connecting rod (8) penetrates through the top end of the box body (1) and extends out, and the top end of the connecting rod (8) is provided with a rotating knob (11).

6. The encoder calibration apparatus of claim 4, wherein, The top end of the first gear (6) is provided with a workbench (2), and the workbench (2) is fixedly connected with the first gear (6).

7. The encoder calibration apparatus of claim 5, wherein, The top end of the box body (1) is provided with a slot (12), and the opening direction of the slot (12) is upward.

8. The encoder calibration apparatus of claim 7, wherein, The bottom wall of the box body (1) is fixedly connected with the bottom end of the fixed end (91).

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