an optical encoder
An optical encoder and grating technology, applied in the field of encoders, can solve problems such as unstable high and low frequency signals, high production costs, and unstable performance, and achieve the effects of reduced production costs, simplified assembly process, and simple structure
Active Publication Date: 2017-07-11
COMAX ELECTRONICS HUL ZHOU
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Problems solved by technology
[0003] The traditional optical encoder usually includes a transmitting grating and two receiving gratings. The light source is received through the light guide column, and then the receiving and blocking of the light source is controlled by the stopper, thus forming unstable high and low frequency signals.
Moreover, the structure of this product is complicated, the assembly is cumbersome, the production cost is high, and the performance is unstable
Method used
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Embodiment Construction
[0021] Hereinafter, the present invention will be further described in detail with reference to the examples and drawings, but the implementation of the present invention is not limited thereto.
[0022] Such as figure 1 As shown, it is an overall structure diagram of an optical encoder 10 according to an embodiment of the present invention. Please refer to figure 2 , Which is figure 1 A cross-sectional view and an exploded structural view of the optical encoder 10 shown.
[0023] The optical encoder 10 includes: a housing 100, a rotor 200, a block 300, a bracket 400, a silicone handle 500, a pot shrapnel 600, a through-beam grating 700 and a PCBA 800, among which the block 300, the bracket 400, the silicone handle 500, and the pot shrapnel 600. The opposite beam grating 700 and the PCBA 800 are contained in the housing 100. In this embodiment, the rotor 200 is a zinc composite rotor, and the support 400 is a zinc composite support.
[0024] The opposite beam grating 700 is welded...
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The invention discloses an optical encoder, which comprises: a shell, a rotor, a stopper, a bracket, a silicone handle, a pot shrapnel, a through-beam grating and a PCBA. The through-beam grating is electrically connected to the PCBA, and the through-beam grating has a transmitting grating and a receiving grating; the rotor passes through the housing and is connected to the stopper, and the stopper has multiple baffles, and a communication channel is formed between the multiple baffles. The light hole, multiple baffles shuttle between the transmitting grating and the receiving grating in turn; the bracket is set on the PCBA, the stopper is rotated and installed on the bracket, the silicone handle is fixed on the bracket, and the silicone handle touches the PCBA through the pot bullet. The rotor passes through the stop block and the bracket and abuts against the silicone handle. The optical encoder drives the stopper to rotate through the rotor to realize the reception and shielding of the grating light source, thereby outputting stable high and low frequency signals. The light source is directly received by the through-beam grating, the error caused by the transmission of the light source through the light guide column is reduced, the performance is more stable, the structure is simpler, the assembly process is simplified, and the product cost is reduced.
Description
Technical field [0001] The invention relates to an encoder, in particular to an optical encoder. Background technique [0002] Optical encoder is a kind of sensor that converts the mechanical geometric displacement on the output shaft into pulse or digital quantity through photoelectric conversion. It is a relatively widely used sensor, mainly used in vertical machining centers, horizontal machining centers, and gantry machining. Center and other CNC equipment. [0003] A traditional optical encoder usually includes a transmitting grating and two receiving gratings. The light guide is used to receive the light source, and then the stopper is used to control the receiving and blocking of the light source, thereby forming unstable high and low frequency signals. In addition, this product has a complex structure, cumbersome assembly, high production cost, and unstable performance. Summary of the invention [0004] The purpose of the present invention is to overcome the deficiencies i...
Claims
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IPC IPC(8): G01D5/38
Inventor 胡俊廷
Owner COMAX ELECTRONICS HUL ZHOU