Rotary positioning device of laser lamp

Abstract

The utility model discloses a rotary positioning device of a laser lamp, which relates to the technical field of rotary positioning devices and comprises a round seat and a round iron disc, the round seat is positioned at the top of the round iron disc, the inner wall of the round seat is rotatably connected with a rotating rod through a bearing, and a power connection seat is fixedly connected between the bottom end of the rotating rod and the top end of the round iron disc. The outer wall of the power connection seat is fixedly connected with a spiral guide piece, and the bottom end of the round seat is fixedly connected with a connection cylindrical frame. According to the utility model, the extrusion contact mechanism can assist the spiral guide sheet and the resistance wire coil to always keep contact through a plurality of contact rollers and a first spring, so that the resistance value is not easy to influence, and the precision is kept; through the limiting and fixing mechanism, under the limiting and fixing of magnetic attraction and contact friction, positioning and braking of the round iron disc are reinforced through a limiting insertion block and a limiting tooth block, looseness is not prone to occurring, and the stability of the round iron disc is guaranteed; the tungsten carbide coating can enhance the wear resistance of the friction pad, reduce the wear rate of the friction pad and ensure the friction coefficient of the friction pad.

Description

Technical Field

[0001] This utility model belongs to the technical field of rotational positioning devices, and in particular relates to a rotational positioning device for a laser lamp. Background Technology

[0002] In a laser light, the function of the rotating positioning device is to precisely control the direction and angle of the laser light so that it can accurately point to the predetermined position.

[0003] For example, CN213237431U discloses a rotation positioning device for a laser light, including a laser light positioning mechanism. The laser light positioning mechanism includes a tension sensor electrically connected via an external power supply. The laser light positioning mechanism also includes a braking body, a position signal collecting body, and a correction body. The position signal collecting body is fixedly installed via the braking body. The outer end of the correction body is fixedly installed via the braking body, and the upper inner end of the correction body is slidably installed via the braking body. The braking body includes an iron disc, a magnet, an electromagnet, and a fixed base. The iron disc and the magnet are attracted and matched. The lower end of the magnet is slidably inserted into the inner end of the electromagnet, and the lower end of the electromagnet is fixedly connected to the upper end of the fixed base. This utility model can accurately position and brake, better meeting usage needs.

[0004] The above-mentioned patent has the following defects in use:

[0005] When the spiral guide plate contacts the resistance wire and rotates under the drive of the shaft, long-term use can easily lead to wear, creating tiny gaps, causing resistance drift and decreased accuracy. Furthermore, the iron disc and magnet are mainly fixed by magnetic attraction, with a leather pad used to increase friction between them. However, in actual use, the magnet's magnetism is easily weakened by external environmental factors such as temperature or time. Simultaneously, the iron disc and leather pad are often affected by vibration, causing loosening and slight displacement between them. Re-engaging not only disrupts the tightness of the contact but also accelerates the wear of the leather pad, leading to a gradual decrease in the coefficient of friction and affecting the stability of its positioning and braking. Therefore, this invention proposes a rotating positioning device for a laser lamp. Utility Model Content

[0006] This invention provides a rotation positioning device for a laser lamp. Through a pressing contact mechanism, multiple contact rollers and a first spring help maintain constant contact between the spiral guide plate and the resistance wire coil, minimizing impact on the resistance value and preserving its accuracy. A limiting and fixing mechanism, under the limiting and fixing effect of magnetic attraction and contact friction, utilizes limiting blocks and limiting tooth blocks to reinforce the positioning and braking of the round iron disc, preventing loosening and ensuring stability. A tungsten carbide coating enhances the wear resistance of the friction pad, reduces its wear rate, and ensures its friction coefficient. In summary, this invention solves the problems in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model discloses a rotating positioning device for a laser lamp, comprising:

[0009] A circular base and a circular iron disc are provided. The circular base is located on top of the circular iron disc, and a rotating rod is rotatably connected to the inner wall of the circular base via a bearing. A power base is fixedly connected between the bottom end of the rotating rod and the top end of the circular iron disc, and a spiral guide plate is fixedly connected to the outer wall of the power base. A connecting cylindrical frame is fixedly connected to the bottom end of the circular base, and a resistance wire coil is sleeved on the outer wall of the connecting cylindrical frame.

[0010] A compression contact mechanism is provided on the outside of the spiral guide plate, and the compression contact mechanism is used to keep the spiral guide plate and the resistance wire coil in contact;

[0011] A limiting and fixing mechanism is provided at the bottom of the round base, and the limiting and fixing mechanism is used for the rotation and positioning of the round iron disc;

[0012] The extrusion contact mechanism includes multiple connecting plates, one side of which is fixedly connected to the outer wall of the spiral guide plate. A pair of fixing rods are fixedly connected to the inner bottom end of each connecting plate, and a first spring is sleeved on the outer wall of each pair of fixing rods. A double-hole sleeve plate is sleeved between the outer walls of the pair of fixing rods. A contact roller is fixedly connected to the top of the double-hole sleeve plate, and the outer wall of the contact roller is in contact with the outer wall of the resistance wire coil.

[0013] Furthermore, one end of the first spring is fixedly connected to the inner bottom end of the connecting plate, and the other end of the first spring is fixedly connected to the bottom end of the double-hole sleeve plate.

[0014] Furthermore, an absolute rotary encoder is fixedly connected to the top of the rotating rod.

[0015] Furthermore, the limiting and fixing mechanism includes multiple cylinders, the top ends of which are fixedly connected to the bottom end of the circular base. A piston plate is slidably connected inside each cylinder, and a movable rod is fixedly connected to the bottom end of the piston plate. A second spring is sleeved on the outer wall of the movable rod, and the two ends of the second spring are fixedly connected to the bottom end of the piston plate and the inner bottom end of the cylinder, respectively. A circular hole is drilled at the inner bottom end of the cylinder, and the bottom end of the movable rod passes through the circular hole and extends to its bottom where a magnet is fixedly connected. A connecting rod is fixedly connected to the top end of the magnet, and a limiting insert is fixedly connected to the bottom end of the connecting rod. Multiple evenly distributed limiting teeth are fixedly connected to the outer wall of the circular iron plate, and the limiting insert engages with the limiting teeth.

[0016] Furthermore, a friction pad is fixedly connected to the bottom end of the magnet block, and the bottom end of the friction pad is in contact with the top end of the round iron disc. The surface of the friction pad is coated with tungsten carbide.

[0017] Furthermore, an electromagnet is fitted onto the outer wall of the cylinder, and the electromagnet attracts the opposite side of the circular iron disc.

[0018] Furthermore, a sealing ring is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring is in close contact with the outer wall of the movable rod.

[0019] The present invention has the following advantages over the prior art:

[0020] 1. This technical solution, through the set extrusion contact mechanism, can drive multiple contact rollers to replace the spiral guide plate and maintain contact with the resistance wire coil during rotation, so as to assist the spiral guide plate in maintaining contact with the resistance wire coil, achieving accurate detection of angle or position. Furthermore, the elastic action of the first spring can assist the contact rollers in position adjustment, ensuring that the contact rollers and the resistance wire coil maintain tight contact, making it less likely to produce gaps, avoiding affecting the resistance value, and maintaining its accuracy.

[0021] 2. This technical solution, through the setting of a limiting and fixing mechanism, can strengthen the positioning and braking of the round iron disc by using the magnetic attraction and fixing of the magnet block and the friction pad to enhance the friction force, and by using the engagement of the limiting plug block with multiple limiting tooth blocks at different positions. This makes it less prone to loosening and ensures its stability. Moreover, the tungsten carbide coating can enhance the wear resistance of the friction pad, reduce its wear rate, and ensure its friction coefficient.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a laser lamp rotation positioning device according to the present invention;

[0025] Figure 2 This is a partial three-dimensional structural diagram of a laser lamp rotation positioning device according to the present invention;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 This is a partial cross-sectional structural diagram of a rotating positioning device for a laser lamp according to the present invention;

[0028] Figure 5 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Round base; 2. Round iron disc; 3. Rotating rod; 4. Electrical base; 5. Spiral guide plate; 6. Connecting cylindrical frame; 7. Resistance wire coil; 8. Pressing contact mechanism; 801. Connecting plate; 802. Fixing rod; 803. First spring; 804. Double-hole sleeve plate; 805. Contact roller; 9. Absolute rotary encoder; 10. Limiting and fixing mechanism; 1001. Cylinder; 1002. Piston plate; 1003. Movable rod; 1004. Second spring; 1005. Magnet block; 1006. Friction pad; 1007. Electromagnet; 1008. Limiting tooth block; 1009. Limiting insert block; 10010. Connecting rod; 11. Sealing ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0034] Please see Figures 1-5 As shown, the present invention provides a rotating positioning device for a laser lamp, comprising:

[0035] A circular base 1 and a circular iron plate 2 are provided. The circular base 1 is located on top of the circular iron plate 2. A rotating rod 3 is rotatably connected to the inner wall of the circular base 1 through a bearing. A power base 4 is fixedly connected between the bottom end of the rotating rod 3 and the top end of the circular iron plate 2. A spiral guide plate 5 is fixedly connected to the outer wall of the power base 4. A connecting cylindrical frame 6 is fixedly connected to the bottom end of the circular base 1. A resistance wire coil 7 is sleeved on the outer wall of the connecting cylindrical frame 6.

[0036] The extrusion contact mechanism 8 is located on the outside of the spiral guide plate 5 and is used to keep the spiral guide plate 5 and the resistance wire coil 7 in contact.

[0037] The limiting and fixing mechanism 10 is located at the bottom of the round base 1 and is used for the rotation positioning of the round iron plate 2.

[0038] The extrusion contact mechanism 8 includes multiple connecting plates 801. One side of each connecting plate 801 is fixedly connected to the outer wall of the spiral guide plate 5. A pair of fixing rods 802 are fixedly connected to the inner bottom end of the connecting plate 801. A first spring 803 is sleeved on the outer wall of each pair of fixing rods 802. A double-hole sleeve plate 804 is sleeved between the outer walls of the pair of fixing rods 802. A contact roller 805 is fixedly connected to the top of the double-hole sleeve plate 804. The outer wall of the contact roller 805 is in contact with the outer wall of the resistance wire coil 7.

[0039] In the specific implementation process, the rotating rod 3 is driven to rotate by external force, which in turn drives the contact base 4 to rotate. The contact base 4 drives the spiral guide plate 5 to rotate, and the spiral guide plate 5 drives multiple connecting plates 801 to rotate synchronously. A pair of fixed rods 802 and a double-hole sleeve plate 804 drive the contact rollers 805 to rotate, so that the multiple contact rollers 805 maintain contact with the resistance wire coil 7 in relay during rotation. Under the relay contact of the multiple contact rollers 805, the position of the contact point with the resistance wire coil 7 changes. Furthermore, the contact rollers 805 are gold-plated copper alloy rollers. The connecting plates 801 and fixed rods 802... The surfaces of the first spring 803 and the double-hole sleeve 804 are also provided with corresponding conductive layers, which have good conductivity. This causes the spiral guide plate 5 to maintain contact with the resistance coil 7 through the conductive contact roller 805, so as to detect the resistance change based on the change in the contact point position of the resistance coil 7, and to determine the rotation amplitude of the terminal block 4. Moreover, the first spring 803 can drive the contact roller 805 and the double-hole sleeve 804 to adjust their positions along the fixed rod 802, so as to maintain a tight contact between the contact roller 805 and the resistance coil 7, making it less likely to produce gaps, avoiding affecting the resistance value, and maintaining its accuracy.

[0040] One end of the first spring 803 is fixedly connected to the inner bottom end of the connecting plate 801, and the other end of the first spring 803 is fixedly connected to the bottom end of the double-hole sleeve plate 804.

[0041] The elastic action of the first spring 803 can drive the double-hole sleeve 804 to move along the fixed rod 802, so as to adjust the position of the contact roller 805 and make the multiple contact rollers 805 keep in close contact when they contact the resistance wire coil 7, so that gaps are not easily formed.

[0042] An absolute rotary encoder 9 is fixedly connected to the top of the rotating rod 3.

[0043] By setting the absolute rotary encoder 9, the rotation angle and position of the rotating rod 3 can be accurately measured and position feedback information can be provided. This allows for appropriate correction based on the position feedback information after a deviation occurs between the resistance signal of the resistance coil 7 and the actual rotation amplitude of the electrical connector 4, thereby reducing errors. Specific Implementation Example 2:

[0045] Please see Figure 1 , Figure 4 and Figure 5As shown, in a preferred embodiment, the limiting and fixing mechanism 10 includes a plurality of cylinders 1001, the top ends of which are fixedly connected to the bottom end of the circular base 1. A piston plate 1002 is slidably connected inside the cylinder 1001, and a movable rod 1003 is fixedly connected to the bottom end of the piston plate 1002. A second spring 1004 is sleeved on the outer wall of the movable rod 1003, and the two ends of the second spring 1004 are respectively connected to the bottom end of the piston plate 1002 and the cylinder 1001. The inner bottom end is fixedly connected. A round hole is drilled at the inner bottom end of the cylinder 1001, and the bottom end of the movable rod 1003 passes through the round hole and extends to the bottom of which a magnet block 1005 is fixedly connected. A connecting rod 10010 is fixedly connected to the top of the magnet block 1005, and a limiting insert block 1009 is fixedly connected to the bottom end of the connecting rod 10010. A plurality of evenly distributed limiting teeth blocks 1008 are fixedly connected to the outer wall of the round iron plate 2, and the limiting insert block 1009 engages with the limiting teeth block 1008.

[0046] In the specific implementation process, when the round iron disc 2 and the rotating rod 3 are in motion, the electromagnet 1007 is energized to attract the magnet block 1005 away from the round iron disc 2 and bring it closer to it. At the same time, the limiting plug 1009 also separates from the pair of limiting teeth 1008 in the initial position. After the round iron disc 2 and the rotating rod 3 rotate to a suitable angle, the electromagnet 1007 is de-energized, canceling the attraction of the magnet block 1005. Under the elastic action of the second spring 1004, the magnet block 1005 moves towards the round iron disc 2 along with the piston plate 1002 and the movable rod 1003, and attracts the round iron disc 2, thus attracting and fixing the round iron disc 2. At the same time, the connecting rod 10010 also moves synchronously with the magnet block 1005, and drives the limiting plug 1009 to engage with the pair of limiting teeth 1008 at this time for limiting and fixing. After multiple limiting and fixing, the positioning and braking of the round iron disc 2 is more firm and stable, and it is not easy to loosen, thus ensuring its stability.

[0047] Among them, the bottom end of the magnet block 1005 is fixedly connected to the friction pad 1006, and the bottom end of the friction pad 1006 is in contact with the top end of the round iron disk 2. The surface of the friction pad 1006 is coated with tungsten carbide.

[0048] By having the bottom of the friction pad 1006 contact the top of the round iron disk 2, the friction between the magnet block 1005 and the round iron disk 2 can be increased, thus providing auxiliary reinforcement for positioning and braking. At the same time, the tungsten carbide coating can enhance the wear resistance of the friction pad 1006, reduce its wear rate, and ensure its coefficient of friction.

[0049] An electromagnet 1007 is fitted onto the outer wall of the cylinder 1001, and the electromagnet 1007 attracts the opposite side of the circular iron disk 2.

[0050] By setting up the electromagnet 1007, when the round iron disk 2 and the rotating rod 3 are energized, magnetism is generated, attracting the magnet block 1005 to approach it and separating it from the round iron disk 2. At the same time, the limiting plug 1009 is also driven to separate from the pair of limiting tooth blocks 1008 in the initial position, canceling the positioning brake on the round iron disk 2, so that the round iron disk 2 can rotate.

[0051] A sealing ring 11 is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring 11 is in close contact with the outer wall of the movable rod 1003.

[0052] By setting the sealing ring 11, the gap between the round hole and the movable rod 1003 can be sealed, reducing the entry of dust.

[0053] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0054] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0055] The working principle of this utility model is as follows:

[0056] In use, the electromagnet 1007 is first energized to generate magnetism, attracting the magnet block 1005 to approach it and separating it from the circular iron disk 2. Simultaneously, the limiting insert 1009 also separates from the pair of limiting teeth 1008 in their initial position, canceling the positioning brake on the circular iron disk 2. Then, the rotating rod 3 drives the contact base 4 and the circular iron disk 2 to rotate. The contact base 4 drives the spiral guide plate 5 to rotate, which in turn drives multiple connecting plates 801 to rotate synchronously. This rotation, through a pair of fixed rods 802 and a double-hole sleeve plate 804, drives the contact roller 80... 5. Rotation causes multiple contact rollers 805 to maintain contact with the resistance coil 7 in relay during rotation. During this contact process, the elasticity of the first spring 803 drives the double-hole sleeve 804 to move along the fixed rod 802, adjusting the position of the contact rollers 805. This ensures that the multiple contact rollers 805 maintain tight contact with the resistance coil 7 in relay, causing the spiral guide plate 5 to maintain contact with the resistance coil 7 through the conductive contact rollers 805. Furthermore, the relay contact of the multiple contact rollers 805 ensures that it maintains contact with the resistance coil 7. The contact point position changes, and the change in resistance is detected by the change in the contact point position of the resistance coil 7, thereby determining the rotation amplitude of the electrical base 4. At the same time, the absolute rotary encoder 9 also measures the rotation angle of the rotating rod 3 and provides position feedback information. Thus, when there is a deviation between the resistance signal of the resistance coil 7 and the actual rotation amplitude of the electrical base 4, the position feedback information is used for appropriate correction. Then, after the circular iron plate 2 and the rotating rod 3 have rotated to the appropriate angle, the electromagnet 1007 is de-energized, canceling the attraction on the magnet block 1005, so that the magnet... Under the elastic action of the second spring 1004, block 1005 moves towards the round iron disk 2 along with piston plate 1002 and movable rod 1003 until the bottom end of friction pad 1006 contacts the top end of round iron disk 2, causing magnet block 1005 to attract round iron disk 2, thereby attracting and fixing round iron disk 2. At the same time, connecting rod 10010 also moves synchronously with magnet block 1005, and drives limit insert 1009 to engage between the corresponding pair of limit teeth 1008 for limiting and fixing, causing round iron disk 2 to perform positioning and braking.

[0057] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotational positioning device for a laser light, characterized by, include: A circular seat (1) and a circular iron plate (2) are provided. The circular seat (1) is located on the top of the circular iron plate (2). A rotating rod (3) is rotatably connected to the inner wall of the circular seat (1) through a bearing. A power connector (4) is fixedly connected between the bottom end of the rotating rod (3) and the top end of the circular iron plate (2). A spiral guide plate (5) is fixedly connected to the outer wall of the power connector (4). A connecting cylindrical frame (6) is fixedly connected to the bottom end of the circular seat (1). A resistance wire coil (7) is sleeved on the outer wall of the connecting cylindrical frame (6). The extrusion contact mechanism (8) is disposed on the outside of the spiral guide plate (5) and is used to keep the spiral guide plate (5) and the resistance wire coil (7) in contact. A limiting and fixing mechanism (10) is provided at the bottom of the round base (1) and is used for the rotation positioning of the round iron plate (2). The extrusion contact mechanism (8) includes multiple connecting plates (801), one side of which is fixedly connected to the outer wall of the spiral guide plate (5). A pair of fixing rods (802) are fixedly connected to the inner bottom end of the connecting plate (801), and a first spring (803) is respectively sleeved on the outer wall of the pair of fixing rods (802). A double-hole sleeve plate (804) is sleeved between the outer walls of the pair of fixing rods (802). A contact roller (805) is fixedly connected to the top of the double-hole sleeve plate (804), and the outer wall of the contact roller (805) is in contact with the outer wall of the resistance wire coil (7).

2. A rotational positioning device for a laser lamp as defined in claim 1, wherein One end of the first spring (803) is fixedly connected to the inner bottom end of the connecting plate (801), and the other end of the first spring (803) is fixedly connected to the bottom end of the double-hole sleeve plate (804).

3. A rotational positioning device for a laser lamp as defined in claim 1, wherein An absolute rotary encoder (9) is fixedly connected to the top of the rotating rod (3).

4. A rotational positioning device for a laser lamp as defined in claim 1, wherein The limiting and fixing mechanism (10) includes multiple cylinders (1001), the top ends of which are fixedly connected to the bottom end of the circular seat (1). A piston plate (1002) is slidably connected inside the cylinder (1001), and a movable rod (1003) is fixedly connected to the bottom end of the piston plate (1002). A second spring (1004) is sleeved on the outer wall of the movable rod (1003), and the two ends of the second spring (1004) are fixed to the bottom end of the piston plate (1002) and the bottom end of the inner cylinder (1001), respectively. The cylinder (1001) has a circular hole at its bottom, and the bottom end of the movable rod (1003) passes through the circular hole and extends to its bottom where a magnet block (1005) is fixedly connected. The top end of the magnet block (1005) is fixedly connected to a connecting rod (10010), and the bottom end of the connecting rod (10010) is fixedly connected to a limiting plug (1009). The outer wall of the circular iron disc (2) is fixedly connected to multiple evenly distributed limiting teeth (1008), and the limiting plug (1009) engages with the limiting teeth (1008).

5. A rotational positioning device for a laser lamp as defined in claim 4, wherein The bottom end of the magnet block (1005) is fixedly connected to a friction pad (1006), and the bottom end of the friction pad (1006) is in contact with the top end of the round iron plate (2). The surface of the friction pad (1006) is coated with tungsten carbide.

6. A rotational positioning device for a laser lamp as defined in claim 4, wherein An electromagnet (1007) is fitted onto the outer wall of the cylinder (1001), and the electromagnet (1007) attracts the opposite side of the circular iron disc (2).

7. A rotational positioning device for a laser lamp as defined in claim 4, wherein A sealing ring (11) is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring (11) is in close contact with the outer wall of the movable rod (1003).

Images