Compact mounting encoder for automated equipment

Abstract

The utility model adopts a kind of compact installation encoder for automation equipment, including encoder body, signal cable, mounting flange, the inner retracted ramp formed on encoder body away from mounting flange, wire outlet is opened on inner retracted ramp, signal cable is led out after passing wire outlet and is distributed along the direction of inner retracted ramp, so that it can be wound arrangement in the rear of encoder, and wire outlet side is equipped with lateral fixed position, lateral fixed position is adapted to top piece, and top piece extends to wire outlet by passing through lateral fixed position, forms the top touch limit of signal cable in wire outlet, so that encoder can determine the reliable limit of signal cable by jack, avoid the occurrence of inside and outside pull generation, by the smooth transition design of slope, it can reduce the friction and stress impact of cable root, also make encoder unnecessary complex sealing component, reduce production cost, can be adapted to the barrel-shaped fixed position scene of numerical control machine tool, industrial robot, filling machine and other automation equipment, and the adaptability is wider.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, and in particular to a compact mounting encoder for automated equipment. Background Technology

[0002] An encoder is a precision sensing device that converts physical quantities such as angle and displacement into electrical signals. Its core function is to provide accurate position and speed feedback for automated equipment, and it is a key component for achieving closed-loop control in equipment such as CNC machine tools, industrial robots, and filling machines. In these types of automated equipment, many encoders need to be embedded in barrel-shaped fixed positions (such as the barrel-shaped end caps of machine tool servo motors, the barrel-shaped protective chambers of robot joints, and the barrel-shaped protective shells of sorting line rollers) to ensure installation stability and component protection.

[0003] To achieve dustproof, wear-resistant, and neat cable routing, existing encoders are generally equipped with cable sheaths made of plastic or PUR material. Some solutions also use cable clamps and other components to assist in securing the cable. However, in installation scenarios with barrel-shaped mounting positions, this sheathed design has unavoidable drawbacks: 1. The sheath itself has a certain thickness, and its size is poorly adapted to the barrel-shaped mounting position, making it impossible for the encoder to be easily inserted into the mounting position. The sheath needs to be cut separately for assembly, which not only delays the construction progress but also damages the protective structure of the sheath; 2. Even if it is forced into place, the sheath is easily squeezed between the encoder body and the barrel-shaped mounting position, forming a "sandwich," causing encoder misalignment and shaft offset, affecting signal transmission accuracy. Furthermore, the vibration of the equipment during operation will exacerbate sheath wear, and may even cause the sheath to fall off or break, resulting in the encoder losing its protection. Ultimately, this leads to equipment positioning deviation and operational failure, seriously affecting the stability and accuracy of automated production.

[0004] The encoder cable exit structure without a sheath on the market mostly relies on complex sealing components such as O-rings and metal rings to achieve protection and fixation. The structure is cumbersome and occupies additional installation space, making it impossible to achieve compact installation. It is difficult to adapt to the narrow space requirements of barrel-shaped fixing positions, and it cannot balance installation adaptability and cable protection effect. Summary of the Invention

[0005] In view of the above shortcomings, this utility model provides an encoder with a simple structure that can not only reliably fix the cable, but also be adapted to compact installation in automated equipment.

[0006] To achieve the above objectives, this utility model employs a compact mounting encoder for automated equipment, comprising an encoder body, a signal cable extending from the encoder body, and a mounting flange disposed at one end of the encoder body. The encoder body has an inwardly recessed ramp at the end away from the mounting flange, and an outlet for the signal cable is provided on the inwardly recessed ramp. The signal cable is led out through the outlet of the encoder body and distributed along the direction of the inwardly recessed ramp, forming an outwardly led signal cable that can be wound and arranged behind the encoder. The encoder body has a lateral fixing position on one side of the cable outlet. A top member is adapted to the lateral fixing position. The top member cooperates with the lateral fixing position and extends through the lateral fixing position into the cable outlet, forming a limit stop for the signal cable in the cable outlet.

[0007] The present invention is further configured such that a silicone layer is provided between the signal cable extending from the outlet and the outlet, and sealant is injected between the signal cable and the silicone layer, and between the silicone layer and the outlet. The top member passes through the side wall of the outlet, touches the silicone layer and squeezes the signal cable, forcing the signal cable to be limited.

[0008] The present invention is further configured such that the encoder body also includes an outer shell distributed on the outside, a mounting flange is provided on the outer shell, and the outer shell and the mounting flange respectively form mating surfaces, the mating surfaces are interference fit, and sealant is injected between the two mating surfaces.

[0009] The present invention is further configured such that a through hole is provided on the mounting flange, and the encoder body also includes an output shaft distributed inside the housing and extending to the outside through the through hole. A rubber cap bearing is fitted on the output shaft at a position relative to the through hole. The inner ring of the rubber cap bearing is tightly connected to the output shaft, and the outer ring of the rubber cap bearing is tightly connected to the wall of the through hole.

[0010] The present invention is further configured such that the mounting flange has multiple sets of indexed circular holes, each set of indexed circular holes has 3 or 4 holes, and the holes of each set of indexed circular holes are evenly distributed on each indexed circular hole.

[0011] The present invention is further configured such that the encoder body also includes an encoder control structure distributed within the housing, the encoder control structure being a mechatronic control structure, and the outer diameter of the housing is adapted to be φ36mm by the encoder control structure controlled by the mechatronics.

[0012] The present invention is further configured such that the outlet is distributed on the slope surface of the inward-sloping ramp or on the slope terminal of the inward-sloping ramp.

[0013] The present invention is further configured such that there are two sets of indexing holes, and the diameters of the two sets of indexing holes are φ28mm and φ30mm respectively. The φ30mm indexing hole includes two sets of hole distributions with 3 hole positions and 4 hole positions, and the φ28mm indexing hole includes a distribution with 3 hole positions.

[0014] The present invention is further configured such that the lateral fixing position is a screw hole, and the top part is a set screw that is threadedly engaged with the screw hole.

[0015] The present invention is further configured such that the outer shell of the encoder body is integrally formed of aluminum alloy.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By forming an inward-sloping end away from the mounting flange on the encoder used in automated equipment (such as the barrel-shaped end cap of a machine tool servo motor, the barrel-shaped protective chamber of a robot joint, and the barrel-shaped protective shell of a sorting line roller), and the exit port for the signal cable on the encoder is opened on the inward-sloping end, in a preferred design, the exit port is distributed on the ramp surface of the inward-sloping end or on the end of the inward-sloping end. Thus, when the signal cable is led out to the outside through the exit port involved on the inward-sloping end, the signal cable can be distributed along the direction of the inward-sloping end, that is, the signal cable can be wound and arranged behind the encoder, and the encoder body synchronously... A lateral fixing position is provided on one side of the cable outlet, and a top component is adapted to the lateral fixing position. The top component can extend through the lateral fixing position into the cable outlet. This allows the signal cable to be pressed against and limited inside the cable outlet. Consequently, the encoder involved can be installed without a sheath and without additional fixing components. The radial / axial dimensions of the encoder can be precisely matched with the barrel-shaped fixing position, allowing for direct embedding without cutting or adjustment. This solves the installation jamming problem caused by excessively thick sheaths in traditional systems, improving installation efficiency by more than 50%. The absence of a sheath avoids the risk of "layering" and, together with the precise positioning of the mounting flange, ensures the coaxiality of the encoder and motor shaft (error ≤ 0.1mm), avoiding signal transmission deviation and improving the positioning accuracy of the equipment. Furthermore, this invention can reliably limit the signal cable by using the set screw, preventing the signal cable from being pulled inwards or outwards. The smooth transition design of the corresponding ramp can reduce friction and stress impact at the cable root. As a result, the encoder can be fixed by the set screw and the ramp wiring design, eliminating the need for complex sealing components and reducing production costs. At the same time, it is suitable for barrel-shaped fixing scenarios of various automated equipment such as CNC machine tools, industrial robots, and filling machines, making it more adaptable. Attached Figure Description

[0017] Figure 1This is a first-view perspective perspective view of the encoder of this utility model embodiment; Figure 2 yes Figure 1 Enlarged schematic diagram; Figure 3 This is a second-view perspective perspective view of the encoder of this utility model embodiment; Figure 4 yes Figure 3 Enlarged schematic diagram; Figure 5 This is a three-dimensional schematic diagram of the signal cable being led out of the outer casing according to an embodiment of the present invention; Figure 6 yes Figure 5 An enlarged schematic diagram. Detailed Implementation

[0018] like Figure 1-6 As shown, a specific embodiment of this utility model is a compact mounting encoder for automated equipment, including an encoder body, a signal cable 4 led out from the encoder body, and a mounting flange 1 disposed at one end of the encoder body. An inward slope 21 is formed at the end of the encoder body away from the mounting flange 1. An outlet 23 for the signal cable 4 is opened on the inward slope 21. After the signal cable 4 is led out through the outlet 23 of the encoder body, it is distributed along the direction of the inward slope 21, so that the outward signal cable 4 can be wound and arranged behind the encoder. The encoder body has a lateral fixing position 22 on one side of the outlet 23. A top member is adapted on the lateral fixing position 22. The top member cooperates with the lateral fixing position 22 and extends through the lateral fixing position 22 into the outlet 23, forming a signal cable 4 that touches the limit position inside the outlet 23.

[0019] By forming an inward-recessed ramp 21 on the encoder, which is used in automated equipment (such as barrel-shaped end caps for machine tool servo motors, barrel-shaped protective chambers for robot joints, and barrel-shaped protective shells for sorting line rollers), the exit port 23 for the signal cable 4 on the encoder is formed on the inward-recessed ramp 21. In a preferred design, the exit port 23 is distributed on the ramp surface of the inward-recessed ramp 21 or on the ramp end of the inward-recessed ramp 21. Thus, when the signal cable 4 is led out to the outside through the exit port 23 involved on the inward-recessed ramp 21, the signal cable 4 can be distributed along the direction of the inward-recessed ramp 21, that is, the outward-leading signal cable 4 can be wound and arranged behind the encoder. The encoder body synchronously has an exit port 23. A lateral fixing position 22 is provided on one side, and a top member is adapted on the lateral fixing position 22. The top member can extend through the lateral fixing position 22 into the outlet 23. This allows the signal cable 4 to be pressed and limited within the outlet 23. Consequently, the encoder involved can be installed without a sheath and without additional fixing components. The radial / axial dimensions of the encoder can be precisely matched with the barrel-shaped fixing position, allowing for direct embedding without cutting or adjustment. This solves the installation jamming problem caused by excessively thick sheaths in traditional methods, improving installation efficiency by more than 50%. The absence of a sheath avoids the risk of "layering" and, together with the precise positioning of the mounting flange 1, ensures the coaxiality of the encoder and motor shaft (error ≤ 0.1mm), avoiding signal transmission deviation and improving the positioning accuracy of the equipment. Furthermore, this invention can reliably limit the signal cable 4 by using the set screw, preventing the signal cable 4 from being pulled inwards or outwards. The smooth transition design of the corresponding ramp reduces friction and stress impact at the cable root. This allows the encoder to be fixed by the set screw and the ramp wiring design, eliminating the need for complex sealing components, reducing production costs, and making it suitable for barrel-shaped fixing scenarios in various automated equipment such as CNC machine tools, industrial robots, and filling machines, thus broadening its applicability. In the preferred design scheme for the lateral fixing position 22 and the top component, the lateral fixing position 22 is a screw hole, and the top component is a set screw that has a threaded engagement with the screw hole.

[0020] like Figure 1-3 As shown in Figure 5, a silicone layer is provided between the signal cable 4 extending out of the outlet 23 and the outlet 23. Sealant is injected between the signal cable 4 and the silicone layer, and between the silicone layer and the outlet 23. The top piece passes through the side wall of the outlet 23, touches the silicone layer, and squeezes the signal cable 4, forcing the signal cable 4 to be limited. This design ensures reliable protection of the signal cable 4 during its lead-out stage in the process of eliminating the sheath and requiring no additional fixing components in the encoder involved.

[0021] like Figure 3-4As shown, the encoder body also includes an outer shell 2 distributed on the outside. A mounting flange 1 is covered on the outer shell 2. The outer shell 2 and the mounting flange 1 respectively form mating surfaces 20. The mating surfaces 20 are interference fit, and the design of injecting sealant between the two mating surfaces 20 makes the encoder's protection level higher than the existing method of intermittent fit between the outer shell 2 and the mounting flange 1, which is then screwed in. In the preferred embodiment of the encoder body, the outer shell 2 is preferably a one-piece aluminum alloy design structure.

[0022] like Figure 3-4 As shown, the mounting flange 1 has a through hole 11. The encoder body also includes an output shaft 3 distributed inside the housing 2 and extending to the outside through the through hole 11. A rubber cover bearing 5 is fitted on the output shaft 3 at a position relative to the through hole 11. The inner ring of the rubber cover bearing 5 is tightly connected to the output shaft 3, and the outer ring of the rubber cover bearing 5 is tightly connected to the hole wall of the through hole 11. This design allows the position of the encoder bearing to be protected. Simultaneously, by providing protection for the signal cable 4 lead-out stage of the encoder and improving the protection level between the housing 2 and the mounting flange 1, the protection level of the encoder can reach IP65, while the protection level of existing encoders of the same type is generally IP54 or lower.

[0023] like Figure 3-4 As shown, the mounting flange 1 has multiple sets of indexing circular holes. Each set of indexing circular holes has 3 or 4 holes 10. The holes 10 of each set of indexing circular holes are evenly distributed on each indexing circular hole, which allows the encoder to be adapted to the installation of each spring bracket. That is, the spring bracket is generally installed on the mounting flange 1 in a triangular, quadrangular, or horizontal or vertical line distribution, which also ensures that the installation adaptability of this utility model is greatly improved.

[0024] like Figure 1-6As shown, the encoder body also includes an encoder control structure distributed within the housing 2. The encoder control structure is a mechatronic control structure. Through the mechatronic control structure, the outer diameter of the housing 2 is designed to be φ36mm. Existing encoders used in automated equipment (such as barrel-shaped end caps of machine tool servo motors, barrel-shaped protective chambers of robot joints, and barrel-shaped protective shells of sorting line rollers) mostly have photoelectric control structures inside. However, due to structural limitations, the size of the housing 2 of photoelectric encoders is generally φ38 or φ40. By adopting a mechatronic control structure for the internal control of the encoder, the size of the housing 2 of the encoder involved in this invention can be made up to φ36, thereby further improving the adaptability of the encoder involved in this invention.

[0025] like Figure 3-4 As shown, there are two sets of indexing holes, with diameters of φ28mm and φ30mm respectively. The φ30mm indexing hole has two sets of hole distributions: 3 hole positions 10 and 4 hole positions 10. The φ28mm indexing hole has a distribution of 3 hole positions 10. In this design, the 28mm or φ30mm indexing circle diameter is a widely used indexing circle size for spring clip brackets on the market. This allows the encoder to meet the installation requirements of most installation environments on the market, further ensuring the adaptability of this utility model.

Claims

1. A compact mounting encoder for automated equipment, comprising an encoder body, a signal cable extending from the encoder body, and a mounting flange disposed at one end of the encoder body, characterized in that: The encoder body has an inward-recessed ramp at the end away from the mounting flange. The inward-recessed ramp has an outlet for the signal cable. The signal cable is led out through the outlet of the encoder body and distributed along the direction of the inward-recessed ramp, so that the outward-leading signal cable can be wound and arranged behind the encoder. The encoder body has a lateral fixing position on one side of the cable outlet. A top member is adapted to the lateral fixing position. The top member cooperates with the lateral fixing position and extends through the lateral fixing position into the cable outlet, forming a limit stop for the signal cable in the cable outlet.

2. The compact mounting encoder for automated equipment according to claim 1, characterized in that: A silicone layer is provided between the signal cable extending from the outlet and the outlet, and sealant is injected between the signal cable and the silicone layer, and between the silicone layer and the outlet. The top member passes through the side wall of the outlet, touches the silicone layer and squeezes the signal cable, forcing the signal cable to be limited.

3. The compact mounting encoder for automated equipment according to claim 2, characterized in that: The encoder body also includes an outer shell distributed on the outside, a mounting flange covering the outer shell, and mating surfaces formed between the outer shell and the mounting flange. The mating surfaces are interference fit, and sealant is injected between the two mating surfaces.

4. The compact mounting encoder for automated equipment according to claim 3, characterized in that: The mounting flange has a through hole, and the encoder body also includes an output shaft distributed inside the housing and extending to the outside through the through hole. A rubber cap bearing is fitted on the output shaft at a position relative to the through hole. The inner ring of the rubber cap bearing is tightly connected to the output shaft, and the outer ring of the rubber cap bearing is tightly connected to the wall of the through hole.

5. The compact mounting encoder for automated equipment according to claim 1, 2, or 3, characterized in that: The mounting flange has multiple sets of indexed circular holes, each set of indexed circular holes has 3 or 4 holes, and the holes of each set of indexed circular holes are evenly distributed on each indexed circular hole.

6. The compact mounting encoder for automated equipment according to claim 1 or 2, characterized in that: The encoder body also includes an encoder control structure distributed within the housing. The encoder control structure is a mechatronic optical control structure. Through the mechatronic optical control structure, the outer diameter of the housing is adapted to be φ36mm.

7. The compact mounting encoder for automated equipment according to claim 1, 2 or 3, characterized in that: The outlets are located on the ramp surface of the inward-sloping slope or at the end of the inward-sloping slope.

8. The compact mounting encoder for automated equipment according to claim 5, characterized in that: The number of indexing holes is two sets, and the diameters of the two sets of indexing holes are φ28mm and φ30mm respectively. The φ30mm indexing hole has two sets of hole distributions, with 3 hole positions and 4 hole positions, while the φ28mm indexing hole has a distribution of 3 hole positions.

9. The compact mounting encoder for automated equipment according to claim 1 or 2, characterized in that: The lateral fixing position is a screw hole, and the top part is a set screw that is threaded into the screw hole.

10. The compact mounting encoder for automated equipment according to claim 3 or 4, characterized in that: The encoder body housing is made of a single piece of aluminum alloy.

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