Encoder angle error detection equipment

Abstract

The utility model discloses encoder angle error detection equipment which comprises a lower machine base, a first air cylinder and a lifting plate are arranged on the upper side of the lower machine base through an upper support, a lower support is rotationally arranged on the lower side of the lifting plate through a motor, and two positioning rods and two detection shaft clamping pieces are arranged on the lower side of the lower support in an opposite sliding mode through lead screws. A fixed clamping plate and a movable clamping plate are further arranged in the middle of the upper side of the lower machine base, and the movable clamping plate is arranged on one side of the lower end of the upper support through a second air cylinder. The second air cylinder drives the movable clamping plate to move close to one side of the fixed clamping plate, the two sides of the outer portion of the encoder shell placed in the middle of the lower machine base can be clamped and fixed, the clamping and fixing stability is high, dismounting and mounting are convenient and fast, and the detection precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to an encoder angle error detection device. Background Art

[0002] A photoelectric encoder is a sensor that converts the mechanical geometric displacement on the output shaft into pulses or digital quantities through photoelectric conversion. It is the most widely used sensor. A general photoelectric encoder is mainly composed of a grating disk and a photoelectric detection device. After production, the photoelectric encoder needs to be error detected, which requires an angle error detection device.

[0003] The prior art discloses a device and method for detecting the graduation error of a photoelectric shaft angle encoder with application number 202222373841.X. The utility model connects the photoelectric shaft angle encoder and a numerical control servo angle device together through a parallel support mechanism and a coupling, and makes the operating axes of the photoelectric shaft angle encoder and the numerical control servo angle device coaxial through a horizontal adjustment mechanism. The photoelectric shaft angle encoder therefore generates an angle signal. The utility model realizes accurate measurement of the graduation error of the photoelectric shaft angle encoder, and improves the scientificity, accuracy and efficiency of detection. However, the photoelectric shaft angle encoder and the numerical control servo angle device are connected together through a coupling, and the disassembly and assembly operations are time-consuming and labor-intensive, which affects the efficiency of continuous detection. Utility Model Content

[0004] The utility model aims to provide an encoder angle error detection device to solve the problem that the prior art uses a coupling to connect the photoelectric shaft angle encoder and the numerical control servo angle device, and the disassembly and assembly operation is time-consuming and labor-intensive, which affects the efficiency of continuous detection.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an encoder angle error detection device, comprising a lower machine base, a first cylinder is provided on the upper side of the lower machine base through an upper bracket, a lifting plate is provided at the lower end of the first cylinder, and a motor is fixedly provided at the middle part of the lower side of the lifting plate, a lower support is rotatably provided at the lower end of the motor, two positioning rods are provided on the lower side of the lower support for sliding toward each other through a lead screw, and detection shaft clamps are provided at the lower ends of the two positioning rods, a fixed clamp and a movable clamp are also provided in the middle part of the upper side of the lower machine base, and the movable clamp is arranged on one side of the lower end of the upper bracket through a second cylinder.

[0006] Furthermore, the fixed splint and the movable splint are both configured as arc-shaped plates, and the inner walls of the arc-shaped grooves of the fixed splint and the movable splint are provided with a protective layer.

[0007] Furthermore, the fixed clamping plate and the movable clamping plate are arranged on the same horizontal plane, and the inner diameters of the fixed clamping plate and the movable clamping plate are larger than the outer diameter of the encoder housing.

[0008] Furthermore, guide rods are provided on the upper sides of both ends of the lifting plate, and the guide rods slide through the top wall of the upper bracket, and a PLC control cabinet is provided on the outer side of the upper bracket.

[0009] Furthermore, the lead screw includes a lead screw rotatably arranged in an internal limiting groove on the lower side of the lower support, two opposite sets of external threads are arranged on the outer side of the lead screw, and one end of the two sets of positioning rods are threadedly connected to the two sets of external threads by sliding.

[0010] Furthermore, the detection shaft clamp at the lower end of the lower support is configured as an arc-shaped clamp, and the arc-shaped groove wall in the detection shaft clamp is provided with anti-slip ribs.

[0011] Furthermore, the anti-skid ribs are semicircular rubber ribs, and a plurality of anti-skid ribs are provided at equal angles.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a fixed clamping plate and a movable clamping plate in the middle part of the upper side of the lower machine base, and the movable clamping plate is arranged on one side of the lower end of the upper bracket through a second cylinder, the fixed clamping plate and the movable clamping plate are both arranged as arc-shaped plates, and the inner walls of the arc-shaped grooves of the fixed clamping plate and the movable clamping plate are provided with a protective layer, so that the movable clamping plate is driven by the second cylinder to move close to one side of the fixed clamping plate, so that the two sides of the outside of the encoder housing placed in the middle part of the lower machine base can be clamped and fixed, and the clamping and fixing has high stability, and the disassembly and assembly are convenient and quick, which is conducive to improving the detection accuracy.

[0014] The utility model also has two positioning rods on the lower side of the lower support that slide toward each other through a lead screw, and detection shaft clamps are provided at the lower ends of the two positioning rods, so that the two positioning rods and the two detection shaft clamps are driven by the lead screw to move toward each other and adjust, and the detection shaft on the upper part of the encoder can be clamped and fixed, so that the motor and the detection shaft can be quickly connected and fixed, which is convenient for improving the efficiency of continuous detection, and then the detection shaft can be driven by the motor to rotate horizontally for detection processing, and the clamping and fixing has high stability, and disassembly and assembly are convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the first cylinder and the motor of the utility model;

[0018] Figure 3 This is a schematic diagram of the lower base structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure between the lead screw and the positioning rod of the utility model.

[0020] In the figure: 1. lower machine base; 2. upper bracket; 3. fixed splint; 4. movable splint; 5. second cylinder; 6. first cylinder; 7. lifting plate; 8. motor; 9. lower support; 10. lead screw; 11. positioning rod; 12. detection shaft clamp; 13. PLC control cabinet; 14. guide rod; 15. anti-slip ribs; 16. protective layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiment of the utility model, an encoder angle error detection device includes a lower machine base 1, a first cylinder 6 is provided on the upper side of the lower machine base 1 through an upper bracket 2, a lifting plate 7 is provided at the lower end of the first cylinder 6, and a motor 8 is fixedly provided at the middle part of the lower side of the lifting plate 7, a lower support 9 is rotatably provided at the lower end of the motor 8, and two positioning rods 11 are provided on the lower side of the lower support 9 to slide toward each other through a lead screw 10, the lead screw 10 includes a lead screw rotatably arranged in an internal limiting slide groove at the lower side of the lower support 9, two opposite groups of external threads are provided on the outer side of the lead screw, and one end of the two groups of positioning rods 11 are threadedly connected with the two groups of external threads by sliding, and a detection shaft clamp 12 is provided at the lower end of the two positioning rods 11, so that the two positioning rods 11 and the two detection shaft clamps 12 are driven by the lead screw 10 to move toward each other for adjustment, so that the detection shaft on the upper part of the encoder can be clamped and fixed, and the motor 8 and the detection shaft can be quickly docked and fixed, and then it is convenient to drive the detection shaft to rotate horizontally and detect the processing by the motor, and the clamping and fixing has high stability, and the disassembly and assembly are convenient and quick.

[0023] like Figure 1 and Figure 3As shown, in order to facilitate clamping and fixing the two sides of the outside of the encoder housing, a fixed clamp plate 3 and a movable clamp plate 4 are also provided in the middle of the upper side of the lower base 1, and the movable clamp plate 4 is arranged on one side of the lower end of the upper bracket 2 through the second cylinder 5. The fixed clamp plate 3 and the movable clamp plate 4 are both arranged as arc plates, and the inner walls of the arc grooves of the fixed clamp plate 3 and the movable clamp plate 4 are provided with a protective layer 16. The fixed clamp plate 3 and the movable clamp plate 4 are arranged on the same horizontal plane, and the inner diameters of the fixed clamp plate 3 and the movable clamp plate 4 are larger than the outer diameter of the encoder housing, so that the movable clamp plate 4 is driven by the second cylinder 5 to move close to the side of the fixed clamp plate 3, so that the two sides of the outside of the encoder housing placed in the middle of the lower base 1 can be clamped and fixed, and the clamping and fixing has high stability, and the disassembly and assembly are convenient and quick, which is conducive to improving the detection accuracy.

[0024] like Figure 1 and Figure 2 As shown, in order to improve the stability of the lifting and lowering adjustment of the positioning rod 11, guide rods 14 are provided on the upper sides of both ends of the lifting plate 7, and the guide rods 14 slide through the top wall of the upper bracket 2 to provide sliding guidance for the lifting plate 7 and the positioning rod 11 during the lifting and lowering adjustment, which is beneficial to improving the stability of the lifting and lowering adjustment of the positioning rod 11. A PLC control cabinet 13 is provided on the outside of the upper bracket 2 to facilitate overall control.

[0025] like Figure 2 and Figure 4 As shown, in order to improve the stability of the detection shaft clamp 12 clamped and fixed on the outside of the detection shaft, the detection shaft clamp 12 at the lower end of the lower support 9 is configured as an arc-shaped clamp, and the arc-shaped groove wall in the detection shaft clamp 12 is provided with anti-slip ribs 15, and the anti-slip ribs 15 are semicircular rubber ribs, and multiple anti-slip ribs 15 are provided at equal angles, which increases the roughness of the arc-shaped groove in the detection shaft clamp 12, thereby facilitating improving the stability of the detection shaft clamp 12 clamped and fixed on the outside of the detection shaft.

[0026] The working principle and use process of the utility model are as follows: when in use, the encoder to be detected is placed on the middle part of the lower machine base 1. A fixed clamp 3 and a movable clamp 4 are also provided on the middle part of the upper side of the lower machine base 1, so that the two sides of the outer casing of the encoder can be clamped and fixed. Then, the lower support 9 and the detection shaft clamp 12 are driven downward by the first cylinder 6. The cover is arranged on the upper part of the encoder. Then, the two positioning rods 11 and the two detection shaft clamps 12 are driven to move toward each other and adjusted by the lead screw 10. The detection shaft on the upper part of the encoder can be clamped and fixed, and the motor 8 used for detection can be quickly docked and fixed with the detection shaft. Then, it is convenient to drive the detection shaft to rotate horizontally through the motor 8 for detection processing. Moreover, the stability of the clamping and fixing is relatively high, and the disassembly and assembly are convenient and quick, which is conducive to improving the detection accuracy.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An encoder angle error detection device, comprising a lower base (1), characterized in that: A first cylinder (6) is provided on the upper side of the lower machine base (1) through the upper bracket (2); a lifting plate (7) is provided at the lower end of the first cylinder (6); and a motor (8) is fixedly provided at the middle of the lower side of the lifting plate (7); a lower support (9) is rotatably provided at the lower end of the motor (8); two positioning rods (11) are provided on the lower side of the lower support (9) for sliding toward each other through a lead screw (10); and detection shaft clamps (12) are provided at the lower ends of the two positioning rods (11); a fixed clamping plate (3) and a movable clamping plate (4) are also provided at the middle of the upper side of the lower machine base (1); and the movable clamping plate (4) is provided on one side of the lower end of the upper bracket (2) through the second cylinder (5).

2. An encoder angle error detection device according to claim 1, characterized in that: The fixed clamping plate (3) and the movable clamping plate (4) are both configured as arc-shaped plates, and the inner walls of the arc-shaped grooves of the fixed clamping plate (3) and the movable clamping plate (4) are provided with a protective layer (16).

3. An encoder angle error detection device according to claim 2, characterized in that: The fixed clamping plate (3) and the movable clamping plate (4) are arranged on the same horizontal plane, and the inner diameters of the fixed clamping plate (3) and the movable clamping plate (4) are larger than the outer diameter of the encoder housing.

4. The encoder angle error detection device according to claim 1, characterized in that: Guide rods (14) are provided on the upper sides of both ends of the lifting plate (7), and the guide rods (14) are slidably arranged to penetrate the top wall of the upper bracket (2).

5. The encoder angle error detection device according to claim 1, characterized in that: The lead screw (10) comprises a lead screw rotatably arranged in an internal limiting sliding groove on the lower side of the lower support (9), two opposite sets of external threads are arranged on the outer side of the lead screw, and one end of the two sets of positioning rods (11) are threadedly connected to the two sets of external threads by sliding.

6. The encoder angle error detection device according to claim 5, characterized in that: The detection shaft clamp (12) at the lower end of the lower support (9) is configured as an arc-shaped clamp, and an arc-shaped groove wall inside the detection shaft clamp (12) is provided with anti-slip convex ribs (15).

7. An encoder angle error detection device according to claim 6, characterized in that: The anti-skid convex ribs (15) are semi-circular rubber ribs, and a plurality of anti-skid convex ribs (15) are provided at equal angles.

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