A scanning galvanometer

Abstract

The present application discloses a scanning galvanometer, belonging to the technical field of laser scanning galvanometer, which comprises a shell, a placing plate is slidably arranged in the shell, a mounting seat for placing the galvanometer motor is installed on the placing plate, a slot for plugging the galvanometer motor base is provided on the mounting seat, a limiting mechanism is provided on the mounting seat, and the limiting mechanism comprises a plurality of fixed components, the fixed components comprise a fixed plate 1, a limiting block and a spring 1, the fixed plate 1 is fixedly arranged on the mounting seat, the limiting block slides on the fixed plate 1, an inclined surface is provided at one end of the limiting block close to the galvanometer motor, the limiting block slides on the inclined surface to cooperate with the galvanometer motor base, and the side of the limiting block away from the inclined surface abuts against the galvanometer motor base; the two ends of the spring 1 are respectively fixedly arranged on the limiting block and the fixed plate 1; the limiting mechanism also comprises a first driving component for driving the limiting block to move. The present application has the effect of facilitating the staff to install and disassemble the galvanometer motor, thereby reducing the working intensity of the staff.

Description

Technical Field

[0001] The present application relates to the technical field of laser scanning galvanometers, and in particular to a scanning galvanometer. Background Art

[0002] Traditional scanning technologies mostly use mechanical scanning methods, which have certain limitations in scanning speed, accuracy and reliability. With the development of laser technology and the continuous expansion of its application fields, especially in the fields of laser processing, laser medical treatment, laser display, etc., the demand for scanning speed, accuracy and stability is growing. As an advanced optical scanning device, the scanning galvanometer has gradually become the mainstream technology in the above application fields because of its advantages such as fast scanning speed, high accuracy, good reliability and small size. The scanning galvanometer is usually composed of two mutually perpendicular swing motors. The deflection angle of the motor is controlled to achieve precise positioning of the light beam in the X-axis and Y-axis directions, thereby achieving the purpose of rapid scanning.

[0003] In the prior art, a scanning galvanometer includes a shell, in which a galvanometer motor is fixedly installed by screws, and a through hole is opened in the side wall of the shell for the galvanometer motor lens to pass through; the galvanometer contains a control circuit for receiving external signals and converting them into action instructions of the driver to achieve precise control of the reflector; an interface is provided in the galvanometer to connect with the external control system to receive control signals; a heat dissipation system is provided in the shell to maintain the normal operating temperature of the equipment.

[0004] However, since most galvanometer motors are currently fixed to the inner wall of the scanning galvanometer housing by screws, the entire process is rather cumbersome, making it inconvenient for workers to install the galvanometer motor and perform subsequent disassembly and maintenance, which increases the workload of the workers. Summary of the invention

[0005] In order to facilitate the staff to install and disassemble the galvanometer motor, thereby reducing the staff's workload, the present application provides a scanning galvanometer.

[0006] The scanning galvanometer provided in this application adopts the following technical solution:

[0007] A scanning galvanometer comprises a shell, a placing plate is slidably arranged inside the shell, a mounting seat for placing a galvanometer motor is mounted on the placing plate, a slot is provided on the mounting seat for plugging in a galvanometer motor base, and a limiting mechanism is provided on the mounting seat for limiting the galvanometer motor.

[0008] By adopting the above technical solution, when the staff needs to install the galvanometer motor in the shell of the scanning galvanometer, the galvanometer motor is first placed on the mounting seat in the shell. During this period, the galvanometer motor can be limited by the limiting mechanism, and then the placing plate is driven to drive the mounting seat to move toward the through hole on the side wall of the shell, until the mounting seat drives the lens on the galvanometer motor to pass through the shell, thereby completing the installation of the galvanometer motor; when the staff needs to disassemble and repair the galvanometer motor, the placing plate can be driven to move in the direction away from the through hole on the shell until the lens on the galvanometer motor is completely moved into the shell, and then the limiting effect of the limiting mechanism on the galvanometer motor is released, and finally the galvanometer motor can be removed for repair or replacement. The whole process facilitates the installation and disassembly of the galvanometer motor, thereby reducing the workload of the staff.

[0009] Preferably, the limiting mechanism includes multiple groups of fixing components, the fixing components include a fixing plate 1, a limiting block and a spring 1, the fixing plate 1 is fixedly arranged on the mounting seat, the limiting block slides on the fixing plate 1, an end of the limiting block close to the galvanometer motor is provided with an inclined surface, the limiting block slides on the inclined surface to cooperate with the galvanometer motor base, and the side of the limiting block facing away from the inclined surface abuts against the base of the galvanometer motor; the two ends of the spring 1 are respectively fixedly arranged on the limiting block and the fixing plate 1; the limiting mechanism also includes a first driving component for driving the limiting block to move.

[0010] By adopting the above technical solution, when it is necessary to install the galvanometer motor, the staff first moves the galvanometer motor and places it above the mounting base. During this period, the base of the galvanometer motor can push the limit block to move through the inclined surface on the limit block, and the spring 1 is stretched. Then, when the base of the galvanometer motor is inserted into the slot and away from the limit block, the elastic force of the spring 1 can push the limit block to move to the upper position of the galvanometer motor and abut against the base on the galvanometer motor, thereby reducing the possibility of separation of the galvanometer motor and the mounting base; when the staff needs to disassemble the galvanometer motor, the first drive component can be used to drive the limit block to move in the direction away from the base on the galvanometer motor, thereby reducing the difficulty of separating the galvanometer motor from the mounting base.

[0011] Preferably, a buffer plate is slidably disposed in the mounting seat, and a second spring is also disposed in the mounting seat, with two ends of the second spring respectively fixed to the buffer plate and the inner wall of the mounting seat, and the buffer plate abuts against the base of the galvanometer motor.

[0012] By adopting the above technical solution, during the process of plugging the galvanometer motor into the slot on the mounting base, the base of the galvanometer motor can push the buffer plate to compress the spring 2 to move. Afterwards, when the galvanometer motor is working, the galvanometer motor may vibrate. At this time, the set spring 2 can push the buffer plate to buffer the galvanometer motor, thereby reducing the possibility of damage to the galvanometer motor.

[0013] Preferably, a plurality of heat sinks are rotatably arranged on the mounting seat, the heat sinks are in contact with the side walls of the galvanometer motor, and a second driving assembly for driving the heat sinks to rotate is provided on the mounting seat.

[0014] By adopting the above technical solution, before the buffer plate moves, the heat sink is located away from the galvanometer motor. Later, when the base of the galvanometer motor is inserted into the slot, the buffer plate can be pushed to move. The movement of the buffer plate can trigger the second drive component, and the second drive component can drive the heat sink to rotate toward the side wall close to the galvanometer motor. When the galvanometer motor is limited, the heat sink abuts against the side wall of the galvanometer motor. The heat sink can not only dissipate the heat for the galvanometer motor, but also support the galvanometer motor, thereby further improving the stability of the galvanometer motor.

[0015] Preferably, the second driving assembly includes a connecting rod 1, a rack 1 and a gear 1, one end of the connecting rod 1 is fixedly arranged on the heat dissipation plate, the gear 1 is fixedly arranged on the other end of the connecting rod 1, the rack 1 is fixedly arranged on the buffer plate, the rack 1 slides on the mounting seat, and the rack 1 is meshed with the gear 1.

[0016] By adopting the above technical solution, the buffer plate can simultaneously drive rack one to move when it moves, rack one can drive gear one to rotate, gear one can drive the connecting rod to rotate, and the connecting rod can drive the heat sink to rotate in a direction close to the galvanometer motor, thereby reducing the difficulty of rotating the heat sink.

[0017] Preferably, a universal joint is provided on the placement plate, the ball head in the universal joint is fixedly arranged on the mounting seat, and the ball bowl in the universal joint is fixedly arranged on the placement plate; a positioning block 1 is slidably provided on the ball bowl in the universal joint, a spring 3 is provided on the positioning block 1, both ends of the spring 3 are respectively fixedly provided on the positioning block 1 and the ball bowl in the universal joint, a plurality of positioning grooves for the positioning block 1 to be plugged in are provided on the ball head in the universal joint, an arc surface is provided on one end of the positioning block 1 close to the ball head in the universal joint, and the positioning block 1 slides on the ball head in the universal joint through the arc surface thereon; a fixing mechanism for fixing the mounting seat is provided on the placement plate.

[0018] By adopting the above technical solution, when the galvanometer motor is limited on the mounting seat and the lens on the galvanometer motor is located outside the shell, the staff can rotate the mounting seat to adjust the position of the galvanometer motor. While the mounting seat is rotating, it can drive the ball head in the universal joint to rotate. The end of the positioning block 1 with the arc surface has been sliding on the ball head in the universal joint. The spring 3 is always in a stretched state. Whenever the ball head in the universal joint rotates to a position corresponding to the positioning slot and the positioning block 1 at different positions, the spring 3 can pull the positioning block 1 to be inserted into the positioning slot. At this time, the staff can debug the galvanometer motor. The arc surface can reduce the difficulty of the positioning block 1 turning out of the positioning slot. When the mounting seat is rotated to a suitable position, the staff can fix the mounting seat through the fixing mechanism, thereby fixing the position of the galvanometer motor. The stability of the galvanometer motor is improved.

[0019] Preferably, the fixing mechanism includes an abutment rod, a fixing plate 2 is fixedly provided on the placing plate, the abutment rod slides on the fixing plate 2, one end of the abutment rod can abut against the positioning block 1, and the fixing mechanism also includes a first positioning component for positioning the abutment rod.

[0020] By adopting the above technical solution, when the mounting seat is rotated to a suitable position, the staff can push the abutment rod in the direction close to the positioning block, and then the abutment rod can push the positioning block to continue to be inserted into the positioning groove on the ball head in the universal joint, and then the abutment rod can be positioned by the first positioning assembly, thereby reducing the possibility of rotation of the ball head in the universal joint, and further reducing the possibility of rotation of the mounting seat and the galvanometer motor.

[0021] Preferably, the first positioning assembly includes a positioning block 2 and a spring 4, a fixing plate 3 is fixedly provided on the placing plate, the positioning block 2 slides on the fixing plate 3, and both ends of the spring 4 are respectively fixedly provided on the positioning block 2 and the fixing plate 3; an inclined surface is provided at one end of the positioning block 2 close to the abutment rod, an abutment block 1 is fixedly provided on the abutment rod, the positioning block 2 slides on the inclined surface to cooperate with the abutment block 1, and the side of the positioning block 2 facing away from its inclined surface abuts against the abutment block 1.

[0022] By adopting the above technical solution, during the movement of the abutment rod, the abutment block can be driven to move together, and then the abutment block can push the abutment block two to stretch the spring four through the inclined surface on the positioning block two to move. When the positioning block one is fully inserted into the positioning groove on the ball head in the universal joint, the abutment block moves to the side of the positioning block two away from the universal joint. The elastic force of the spring four can pull the positioning block two to move until the positioning block two abuts against the abutment block, thereby reducing the possibility of the abutment rod moving in a direction away from the universal joint.

[0023] Preferably, a plurality of abutment blocks 2 are slidably disposed at one end of the through hole in the shell, an end of the abutment block 2 close to the galvanometer motor is provided with an inclined surface, and the abutment block 2 is slidably engaged with the side wall of the galvanometer motor through the inclined surface, and an end of the abutment block 2 close to the galvanometer motor abuts against the side wall of the galvanometer motor;

[0024] A plurality of fixing plates four are fixedly arranged on the inner wall of the shell, and the plurality of fixing plates four are arranged in one-to-one correspondence with the plurality of abutment blocks two. A push spring is arranged between the fixing plate four and the abutment block two, and the two ends of the push spring are respectively fixedly arranged on the abutment block two and the fixing plate four; a second positioning component for positioning the abutment block two is also arranged in the shell.

[0025] By adopting the above technical solution, when the staff drives the lens on the galvanometer motor to move outside the shell, the side wall of the galvanometer motor can first push the abutment block 2 to compress the push spring through the inclined surface on the abutment block 2, and then when the staff adjusts the position of the galvanometer motor, each abutment block can be adaptively changed according to the position of the galvanometer motor, and the elastic force of the push spring can push the abutment block 2 to always abut against the side wall of the galvanometer motor. Finally, when the position of the galvanometer motor is fixed, the staff positions the abutment block 2 through the second positioning component, thereby reducing the possibility of the abutment block 2 moving away from the galvanometer motor, and then the end of the galvanometer motor can be fixed, further improving the stability of the galvanometer motor.

[0026] Preferably, airbag 1 is installed on the inner wall of the through hole in the shell, and airbag 2 is installed on the inner wall of the shell. Airbag 2 is connected to airbag 1, and an extrusion plate is slidable in the shell. Airbag 1 can abut against the side wall of the galvanometer motor, and the extrusion plate can abut against airbag 2. A driving member for driving the extrusion plate to move is also provided in the shell.

[0027] By adopting the above technical solution, when the second positioning component positions the abutment block two, the driving member can be triggered, and the driving member can push the extrusion plate to squeeze the airbag two, and the airbag two can squeeze the air into the airbag one. The volume of the airbag one gradually increases and finally abuts against the side wall of the galvanometer motor, so that the through hole on the shell can be sealed, reducing the possibility of dust and other impurities entering the shell through the through hole, thereby reducing the possibility of damage to the galvanometer motor.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] When the staff needs to install the galvanometer motor in the shell of the scanning galvanometer, first place the galvanometer motor on the mounting seat in the shell. During this period, the galvanometer motor can be limited by the limiting mechanism, and then the mounting seat is driven to drive the lens on the galvanometer motor to pass through the shell, thereby completing the installation of the galvanometer motor; when the staff needs to disassemble and repair the galvanometer motor, they can first drive the placement plate to move away from the through hole in the shell until the lens on the galvanometer motor is completely moved into the shell, and then release the limiting effect of the limiting mechanism on the galvanometer motor, and finally remove the galvanometer motor for repair or replacement. The whole process facilitates the installation and disassembly of the galvanometer motor, thereby reducing the work intensity of the staff; during the process of plugging the galvanometer motor into the slot on the mounting seat, the galvanometer motor The base can push the buffer plate to compress spring 2 to move. Then, when the galvanometer motor is working, the galvanometer motor may vibrate. At this time, the spring 2 arranged can push the buffer plate to buffer the galvanometer motor, thereby reducing the possibility of damage to the galvanometer motor. Before the buffer plate moves, the heat sink is located away from the galvanometer motor. Then, when the base of the galvanometer motor is inserted into the slot, the buffer plate can be pushed to move. While the buffer plate moves, the second drive component can be triggered. The second drive component can drive the heat sink to rotate toward the side wall close to the galvanometer motor. When the galvanometer motor is limited, the heat sink abuts against the side wall of the galvanometer motor. The heat sink can not only dissipate the heat for the galvanometer motor, but also support the galvanometer motor, thereby further improving the stability of the galvanometer motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the structure of the placement plate highlighted in the embodiment of the present application;

[0032] Figure 3 is a schematic diagram of the structure of the heat sink in the embodiment of the present application;

[0033] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0034] Figure 5 is a structural schematic diagram highlighting the universal joint in an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of the structure of the second airbag highlighted in the embodiment of the present application;

[0036] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0037] Figure 8 yes Figure 1Enlarged view of point C in the middle.

[0038] Description of reference numerals:

[0039] 1. Shell; 2. Placement plate; 3. Micro cylinder; 4. Mounting seat; 5. Slot; 6. Limiting mechanism; 60. Fixing assembly; 61. Fixing plate 1; 62. Limiting block; 63. Spring 1; 64. Pushing block; 65. First driving assembly; 651. Driving rod; 652. Connecting plate; 653. Reset spring; 654. Push rod; 7. Buffer plate; 8. Spring 2; 9. Heat sink; 10. Second driving assembly; 101. Connecting rod 1; 102. Rack 1; 103. Gear 1; 11. Universal joint; 111. Positioning block 1; 112. Spring 3; 113. Positioning groove; 12. Fixing mechanism; 121. Abutting rod; 1 22. Fixed plate two; 123. First positioning assembly; 1231. Positioning block two; 1232. Spring four; 1233. Fixed plate three; 1234. Abutment block one; 1235. Abutment block two; 13. Fixed plate four; 14. Push spring; 15. Second positioning assembly; 151. Gear two; 152. Gear three; 153. Rack two; 154. Push rod one; 155. Push rod two; 156. Connecting rod; 157. Abutment block three; 158. Spring five; 159. Guard rod; 160. Rack three; 161. Rotating rod; 162. Gear four; 17. Airbag one; 18. Airbag two; 19. Extrusion plate; 20. Connecting rod two. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 This application is described in further detail.

[0041] The present application embodiment discloses a scanning galvanometer, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, it includes a shell 1, a placing plate 2 is vertically slidable inside the shell 1, a micro cylinder 3 is installed on the inner wall of the shell 1, the piston rod on the micro cylinder 3 is fixedly set at the bottom of the placing plate 2, a mounting seat 4 for placing a galvanometer motor is installed on the placing plate 2, a slot 5 for plugging the galvanometer motor base is opened on the mounting seat 4, the slot 5 extends in the vertical direction, and a limiting mechanism 6 for limiting the galvanometer motor is provided on the mounting seat 4.

[0042] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown, when the staff needs to install the galvanometer motor in the shell 1 of the scanning galvanometer, the galvanometer motor is first placed on the mounting seat 4 in the shell 1. During this period, the galvanometer motor can be limited by the limiting mechanism 6, and then the placing plate 2 is driven to drive the mounting seat 4 to move toward the through hole on the side wall of the shell 1, until the mounting seat 4 drives the lens on the galvanometer motor to pass through the shell 1, thereby completing the installation of the galvanometer motor; when the staff needs to disassemble and repair the galvanometer motor, the placing plate 2 can be driven to move in the direction away from the through hole on the shell 1 until the lens on the galvanometer motor is completely moved into the shell 1, and then the limiting effect of the limiting mechanism 6 on the galvanometer motor is released, and finally the galvanometer motor can be removed for repair or replacement. The whole process facilitates the installation and disassembly of the galvanometer motor, thereby reducing the workload of the staff.

[0043] like Figure 3 as well as Figure 4 As shown, the limiting mechanism 6 includes four groups of fixing components 60, and the four groups of fixing components 60 are arranged in a circular array along the base of the galvanometer motor. The fixing components 60 include a fixing plate 61, a limiting block 62 and a spring 63. The fixing plate 61 is fixedly arranged on the mounting seat 4, and the limiting block 62 is horizontally penetrated and slides on the fixing plate 61. The top of the limiting block 62 close to one end of the galvanometer motor is provided with an inclined surface, and the limiting block 62 is slidably matched with the base of the galvanometer motor through the inclined surface, and the side of the limiting block 62 away from the inclined surface abuts against the base of the galvanometer motor; the end of the limiting block 62 away from the galvanometer motor is fixedly connected with a push block 64, and the two ends of the spring 63 are respectively fixedly connected to the push block 64 and the fixing plate 61.

[0044] like Figure 3 as well as Figure 4 As shown, the limiting mechanism 6 also includes a first driving component 65 for driving the limiting block 62 to move; the first driving component 65 includes a driving rod 651, and the driving rod 651 vertically slides on the side wall of the mounting seat 4, and a connecting plate 652 is fixedly provided on the side wall of the mounting seat 4 below the driving rod 651, and a plurality of return springs 653 are vertically provided between the connecting plate 652 and the driving rod 651, and the two ends of the return spring 653 are respectively fixedly connected to the connecting plate 652 and the driving rod 651; four push rods 654 are fixedly connected to the top of the driving rod 651, and the four push rods 654 are correspondingly arranged with the four push blocks 64, and an inclined surface is provided on the side of the top of the push rod 654 away from the galvanometer motor, and the push rod 654 can slide on the inclined surface to cooperate with the push block 64.

[0045] like Figure 3 as well as Figure 4As shown, when the galvanometer motor needs to be installed, the staff first moves the galvanometer motor and places it above the mounting base 4. During this period, the base of the galvanometer motor can push the limit block 62 to move through the inclined surface on the limit block 62, and the spring 1 63 is stretched. After that, when the base of the galvanometer motor is inserted into the slot 5 and away from the limit block 62, the elastic force of the spring 1 63 can push the limit block 62 to move to the upper position of the galvanometer motor and abut against the base on the galvanometer motor, thereby reducing the possibility of separation of the galvanometer motor and the mounting base 4; when the staff needs to disassemble the galvanometer motor, the driving rod 651 can be moved upward, the reset spring 653 is stretched, the driving rod 651 can push the push rod 654 to move upward, and the push rod 654 can push the push block 64 to move away from the galvanometer motor through the inclined surface. The push block 64 can simultaneously drive the limit block 62 to move away from the galvanometer motor, and the reset spring 653 provided can reset the driving rod 651 and each push rod 654.

[0046] like Figure 3 as well as Figure 4 As shown, a buffer plate 7 is vertically slidable in the slot 5, and a plurality of springs 8 are vertically arranged in the slot 5. The two ends of the springs 8 are respectively fixed to the buffer plate 7 and the inner wall of the mounting seat 4, and the buffer plate 7 abuts against the base of the galvanometer motor.

[0047] like Figure 3 as well as Figure 4 As shown, during the process of plugging the galvanometer motor into the slot 5 on the mounting base 4, the base of the galvanometer motor can push the buffer plate 7 to compress the spring 2 8 to move. Then, when the galvanometer motor is working, the galvanometer motor may vibrate. At this time, the set spring 2 8 can push the buffer plate 7 to buffer the galvanometer motor, thereby reducing the possibility of damage to the galvanometer motor.

[0048] like Figure 2 , Figure 3 as well as Figure 4 As shown, a plurality of heat sinks 9 are rotatably arranged on the mounting base 4 , the heat sinks 9 are arc-shaped plates, the heat sinks 9 abut against the side wall of the galvanometer motor, and a second driving assembly 10 for driving the heat sinks 9 to rotate is provided on the mounting base 4 .

[0049] like Figure 2 , Figure 3 as well as Figure 4As shown, before the buffer plate 7 moves, the heat sink 9 is located away from the galvanometer motor. Later, when the base of the galvanometer motor is inserted into the slot 5, the buffer plate 7 can be pushed to move. The movement of the buffer plate 7 can trigger the second drive component 10. The second drive component 10 can drive the heat sink 9 to rotate toward the side wall close to the galvanometer motor. When the galvanometer motor is limited, the heat sink 9 abuts against the side wall of the galvanometer motor. The heat sink 9 can not only dissipate the heat for the galvanometer motor, but also support the galvanometer motor, thereby further improving the stability of the galvanometer motor.

[0050] like Figure 2 , Figure 3 as well as Figure 4 As shown, the second driving assembly 10 includes a connecting rod 101, a rack 102 and a gear 103. One end of the connecting rod 101 is fixedly disposed on the heat dissipation plate 9, a rotating shaft is passed through the bottom end of the connecting rod 101, and the gear 103 is sleeved and fixed on the rotating shaft. The rotating shaft is rotatably disposed on the side wall of the mounting seat 4, the rack 102 is fixedly disposed on the buffer plate 7, the rack 102 vertically slides on the mounting seat 4, and the rack 102 is meshed with the gear 103.

[0051] like Figure 2 , Figure 3 as well as Figure 4 As shown, when the buffer plate 7 moves, it can simultaneously drive the rack 102 to move, the rack 102 can drive the gear 103 to rotate, the gear 103 can drive the connecting rod 101 to rotate, and the connecting rod 101 can drive the heat sink 9 to rotate in the direction close to the galvanometer motor, thereby reducing the difficulty of rotating the heat sink 9.

[0052] like Figure 2 , Figure 3 as well as Figure 5 As shown, a universal joint 11 is arranged on the placing plate 2, the ball head in the universal joint 11 is fixedly arranged on the mounting seat 4, and the ball bowl in the universal joint 11 is fixedly arranged on the placing plate 2; a positioning block 111 is slidably arranged on the ball bowl in the universal joint 11, and a spring 3 112 is sleeved on the positioning block 111, and the two ends of the spring 3 112 are respectively fixedly arranged on the positioning block 111 and the ball bowl in the universal joint 11, and a plurality of positioning grooves 113 for the positioning block 111 to be plugged in are provided on the ball head in the universal joint 11, and an arc surface is provided on one end of the positioning block 111 close to the ball head in the universal joint 11, and the positioning block 111 slides on the ball head in the universal joint 11 through the arc surface thereon; a fixing mechanism 12 for fixing the mounting seat 4 is provided on the placing plate 2.

[0053] like Figure 2 , Figure 3 as well as Figure 5As shown, when the galvanometer motor is limited on the mounting seat 4 and the lens on the galvanometer motor is located outside the housing 1, the staff can rotate the mounting seat 4 to adjust the position of the galvanometer motor. While the mounting seat 4 is rotating, it can drive the ball head in the universal joint 11 to rotate. The end of the positioning block 111 with an arc surface has been sliding on the ball head in the universal joint 11. The spring 3 112 is always in a stretched state. Whenever the ball head in the universal joint 11 rotates to a position corresponding to the positioning groove 113 at different positions and the positioning block 111, the spring 3 112 can pull the positioning block 111 to be inserted into the positioning groove 113. At this time, the staff can debug the galvanometer motor. The arc surface can reduce the difficulty of rotating the positioning block 111 out of the positioning groove 113. When the mounting seat 4 is rotated to a suitable position, the staff can fix the mounting seat 4 through the fixing mechanism 12, thereby fixing the position of the galvanometer motor. The stability of the galvanometer motor is improved.

[0054] like Figure 2 , Figure 3 as well as Figure 5 As shown, the fixing mechanism 12 includes an abutment rod 121, a fixing plate 122 is fixedly arranged on the placing plate 2, the abutment rod 121 is horizontally penetrated and slides on the fixing plate 122, one end of the abutment rod 121 can abut against the positioning block 1 111, and the fixing mechanism 12 also includes a first positioning component 123 for positioning the abutment rod 121.

[0055] like Figure 2 , Figure 3 as well as Figure 5 As shown, when the mounting seat 4 is rotated to a suitable position, the staff can push the abutment rod 121 in the direction close to the positioning block 111, and then the abutment rod 121 can push the positioning block 111 to continue to be inserted into the positioning groove 113 on the ball head in the universal joint 11, and then the abutment rod 121 can be positioned by the first positioning assembly 123, thereby reducing the possibility of rotation of the ball head in the universal joint 11, and further reducing the possibility of rotation of the mounting seat 4 and the galvanometer motor.

[0056] like Figure 2 , Figure 3 as well as Figure 5 As shown, the first positioning assembly 123 includes a positioning block 2 1231 and a spring 4 1232, a fixing plate 3 1233 is fixedly arranged on the placing plate 2, the positioning block 2 1231 is vertically penetrated and slides on the fixing plate 3 1233, and the two ends of the spring 4 1232 are respectively fixedly arranged on the positioning block 2 1231 and the fixing plate 3 1233; an inclined surface is provided at one end of the positioning block 2 1231 close to the abutting rod 121, an abutting block 1 1234 is fixedly arranged at the bottom of the abutting rod 121, the positioning block 2 1231 is slidably matched with the abutting block 1 1234 through the inclined surface, and the side of the positioning block 2 1231 away from its inclined surface abuts against the abutting block 1 1234.

[0057] like Figure 2 , Figure 3 as well as Figure 5 As shown, during the movement of the abutment rod 121, the abutment block 1234 can be driven to move, and then the abutment block 1234 can push the positioning block 1231 to stretch the spring 4 1232 through the inclined surface on the positioning block 1231 to move. When the positioning block 111 is fully inserted into the positioning groove 113 on the ball head of the universal joint 11, the abutment block 1234 moves to the side of the positioning block 1231 away from the universal joint 11, and the elastic force of the spring 4 1232 can pull the positioning block 1231 to move until the positioning block 1231 abuts against the abutment block 1234, thereby reducing the possibility of the abutment rod 121 moving in the direction away from the universal joint 11.

[0058] like Figure 2 , Figure 6 as well as Figure 7 As shown, one end of the through hole located in the shell 1 slides horizontally with four abutment blocks 1235, and the four abutment blocks 1235 are distributed in a circular array along the circumference of the galvanometer motor. The bottom of the abutment block 1235 close to one end of the galvanometer motor is provided with an inclined surface, and the abutment block 1235 is fitted with the side wall of the galvanometer motor through the inclined surface sliding, and the end of the abutment block 1235 close to the galvanometer motor abuts against the side wall of the galvanometer motor.

[0059] like Figure 2 , Figure 6 as well as Figure 7 As shown, four fixing plates four 13 are fixedly provided on the inner wall of the shell 1, and the four fixing plates four 13 are arranged in one-to-one correspondence with the four abutment blocks two 1235. A plurality of push springs 14 are arranged between the fixing plates four 13 and the abutment blocks two 1235, and the two ends of the push springs 14 are respectively fixedly provided on the abutment blocks two 1235 and the fixing plates four 13; a second positioning component 15 for positioning the abutment blocks two 1235 is also provided in the shell 1.

[0060] like Figure 2 , Figure 6 as well as Figure 7 As shown, the second positioning assembly 15 includes a gear 2 151, a gear 3 152 and a rack 2 153, a push rod 154 is horizontally arranged between the abutment block 2 1235 and the fixed plate 4 13, one end of the push rod 154 is fixedly arranged on the abutment block 2 1235, and the other end of the push rod 154 is horizontally penetrated and slides on the fixed plate 4 13; four push rods 2 155 are vertically slidable on the inner wall of the shell 1, the four push rods 2 155 are arranged in a one-to-one correspondence with the four push rods 154, a connecting rod 156 is arranged between the push rod 1 154 and the push rod 2 155, and the two ends of the connecting rod 156 are respectively hinged to the push rod 1 154 and the push rod 2 155.

[0061] like Figure 2 , Figure 6 as well as Figure 7 As shown, the gear 2 151 is an outer ring gear, and the gear 2 151 is rotatably arranged on the inner wall of the housing 1, four gears 3 152 are arranged, and the four gears 3 152 are arranged one-to-one correspondingly with the four push rods 2 155, the gear 3 152 is rotatably arranged on the inner wall of the housing 1, and the four gears 3 152 are meshed with the gear 2 151; four racks 2 153 are arranged, and the four racks 2 153 are arranged one-to-one correspondingly with the four gears 3 152, and the racks 2 153 are meshed with the gear 3 152; A contact block three 157 is slidably provided at one end of the rack 153 close to the push rod 155, and the contact block three 157 can contact the push rod 155. A spring five 158 is provided between the contact block three 157 and the rack 153, and the two ends of the spring five 158 are respectively fixedly provided on the rack 153 and the contact block three 157; a guard rod 159 is sleeved inside the spring five 158, and one end of the guard rod 159 is fixedly provided on the contact block three 157, and the other end of the guard rod 159 passes through and slides on the rack 153.

[0062] like Figure 2 , Figure 6 as well as Figure 7 As shown, a rack three 160 is fixedly provided on the side wall of the abutment rod 121, and the rack three 160 slides horizontally in the shell 1. A rotating rod 161 is fixedly mounted on one of the gear three 152, and the rotating rod 161 is vertically arranged. A gear four 162 is fixedly mounted on the bottom end of the rotating rod 161, and the gear four 162 is meshed with the rack three 160.

[0063] like Figure 2 , Figure 6 as well as Figure 7 As shown, when the staff drives the lens on the galvanometer motor to move outside the shell 1, the side wall of the galvanometer motor can first push the abutment block 1235 through the inclined surface on the abutment block 1235 to compress the push spring 14 to move, and then when the staff adjusts the position of the galvanometer motor, each abutment block 1235 can be adaptively changed according to the position of the galvanometer motor, and the elastic force of the push spring 14 can push the abutment block 1235 to always abut against the side wall of the galvanometer motor.

[0064] like Figure 2 , Figure 5 , Figure 6 as well as Figure 7As shown, when the staff drives the contact rod 121 to push the positioning block 111 to move, the contact rod 121 can drive the rack 3 160 to move while moving, the rack 3 160 can push the gear 4 162 to rotate, the gear 4 162 can drive the rotating rod 161 to rotate, the rotating rod 161 can drive one of the gears 3 152 to rotate, the gear 3 152 can drive the gear 2 151 to rotate, and at the same time, the gear 3 152 can drive the corresponding rack 2 153 to move in the direction close to the push rod 2 155, the gear 2 151 can simultaneously drive the other gears 3 152 to rotate, and the other gears 3 152 can simultaneously drive The rack 2 153 moves toward the direction approaching the galvanometer motor, and the rack 2 153 can drive the abutment block 3 157 to abut against the push rod 2 155. Then the rack 2 153 continues to move, and the spring 5 158 is compressed. The elastic force of the spring 5 158 can push the abutment block 3 157 to abut against the push rod 2 155. At this time, the friction between the abutment block 3 157 and the push rod 2 155 can reduce the possibility of the push rod 2 155 moving, thereby reducing the possibility of the abutment block 2 1235 moving away from the galvanometer motor, and then the end of the galvanometer motor can be fixed, further improving the stability of the galvanometer motor.

[0065] like Figure 3 , Figure 6 , Figure 7 as well as Figure 8 As shown, an airbag 1 17 is installed on the inner wall of the through hole, and an airbag 2 18 is installed on the inner wall of the shell 1. The airbag 2 18 is connected to the airbag 1 17. There are multiple extrusion plates 19 that slide horizontally in the shell 1. The airbag 1 17 can abut against the side wall of the galvanometer motor, and the extrusion plate 19 can abut against the airbag 2 18. A driving member for driving the extrusion plate 19 to move is also provided in the shell 1. The driving member is a connecting rod 20, and the two ends of the connecting rod 20 are respectively fixedly connected to the extrusion plate 19 and the rack 2 153.

[0066] like Figure 3 , Figure 6 , Figure 7 as well as Figure 8 As shown, when the rack 2 153 moves toward the direction approaching the galvanometer motor, while positioning the abutment block 2 1235, the rack 2 153 can simultaneously drive the connecting rod 20 to move, and the connecting rod 20 can drive the extrusion plate 19 to squeeze the airbag 2 18. The airbag 2 18 can squeeze air into the airbag 1 17. The volume of the airbag 17 gradually increases and finally abuts against the side wall of the galvanometer motor, thereby sealing the through hole on the shell 1, reducing the possibility of dust and other impurities entering the shell 1 through the through hole, thereby reducing the possibility of damage to the galvanometer motor.

[0067] The implementation principle of a scanning galvanometer in an embodiment of the present application is as follows: when the staff needs to install the galvanometer motor in the shell 1 of the scanning galvanometer, the galvanometer motor is first placed on the mounting seat 4 in the shell 1. During this period, the galvanometer motor can be limited by the limiting mechanism 6, and then the placing plate 2 is driven to drive the mounting seat 4 to move toward the through hole on the side wall of the shell 1, until the mounting seat 4 drives the lens on the galvanometer motor to pass through the shell 1, thereby completing the installation of the galvanometer motor; when the staff needs to disassemble and repair the galvanometer motor, the placing plate 2 can be driven to move in the direction away from the through hole on the shell 1 until the lens on the galvanometer motor is completely moved into the shell 1, and then the limiting effect of the limiting mechanism 6 on the galvanometer motor is released, and finally the galvanometer motor can be removed for repair or replacement. The whole process facilitates the installation and disassembly of the galvanometer motor, thereby reducing the workload of the staff.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A scanning galvanometer, comprising a housing (1), characterized in that: A placement plate (2) is slidably disposed in the housing (1); a mounting seat (4) for placing a galvanometer motor is mounted on the placement plate (2); a slot (5) for inserting a galvanometer motor base is provided on the mounting seat (4); and a limiting mechanism (6) for limiting the position of the galvanometer motor is provided on the mounting seat (4); The limiting mechanism (6) comprises a plurality of fixing components (60), wherein the fixing components (60) comprise a fixing plate (61), a limiting block (62) and a spring (63); the fixing plate (61) is fixedly arranged on the mounting seat (4); the limiting block (62) slides on the fixing plate (61); an inclined surface is provided at one end of the limiting block (62) close to the galvanometer motor; the limiting block (62) slides on the inclined surface to fit the galvanometer motor base; a side of the limiting block (62) facing away from the inclined surface abuts against the galvanometer motor base; two ends of the spring (63) are respectively fixedly arranged on the limiting block (62) and the fixing plate (61); the limiting mechanism (6) further comprises a first driving component (65) for driving the limiting block (62) to move; A buffer plate (7) is slidably disposed in the mounting seat (4), and a second spring (8) is also disposed in the mounting seat (4), the two ends of the second spring (8) being respectively fixedly disposed on the buffer plate (7) and the inner wall of the mounting seat (4), and the buffer plate (7) is in contact with the base of the galvanometer motor; A plurality of heat sinks (9) are rotatably mounted on the mounting seat (4), the heat sinks (9) abutting against the side wall of the galvanometer motor, and a second driving assembly (10) for driving the heat sinks (9) to rotate is provided on the mounting seat (4); The second driving assembly (10) comprises a connecting rod (101), a rack one (102) and a gear one (103); one end of the connecting rod (101) is fixedly arranged on the heat dissipation plate (9); the gear one (103) is fixedly arranged on the other end of the connecting rod (101); the rack one (102) is fixedly arranged on the buffer plate (7); the rack one (102) slides on the mounting seat (4); and the rack one (102) is meshed with the gear one (103).

2. A scanning galvanometer according to claim 1, characterized in that: The placement plate (2) is provided with a universal joint (11), the ball head of the universal joint (11) is fixedly arranged on the mounting seat (4), and the ball bowl of the universal joint (11) is fixedly arranged on the placement plate (2); a positioning block (111) is slidably provided on the ball bowl of the universal joint (11), and a spring (112) is provided on the positioning block (111), and two ends of the spring (112) are respectively fixedly arranged on the positioning block (111) and the spring (112). The ball bowl in the universal joint (11) is provided with a plurality of positioning grooves (113) on the ball head in the universal joint (11) for the positioning block 1 (111) to be inserted into; an arc surface is provided at one end of the positioning block 1 (111) close to the ball head in the universal joint (11); the positioning block 1 (111) slides on the ball head in the universal joint (11) via the arc surface thereon; and a fixing mechanism (12) for fixing the mounting seat (4) is provided on the placement plate (2).

3. A scanning galvanometer according to claim 2, characterized in that: The fixing mechanism (12) comprises an abutment rod (121), a second fixing plate (122) is fixedly arranged on the placement plate (2), the abutment rod (121) slides on the second fixing plate (122), one end of the abutment rod (121) can abut against the first positioning block (111), and the fixing mechanism (12) further comprises a first positioning component (123) for positioning the abutment rod (121).

4. A scanning galvanometer according to claim 3, characterized in that: The first positioning assembly (123) comprises a second positioning block (1231) and a fourth spring (1232); a third fixing plate (1233) is fixedly arranged on the placement plate (2); the second positioning block (1231) slides on the third fixing plate (1233); two ends of the fourth spring (1232) are respectively fixedly arranged on the second positioning block (1231) and the third fixing plate (1233); an inclined surface is provided at one end of the second positioning block (1231) close to the abutting rod (121); an abutting block (1234) is fixedly arranged on the abutting rod (121); the second positioning block (1231) is slidably engaged with the abutting block (1234) via the inclined surface; the side of the second positioning block (1231) facing away from the inclined surface abuts against the abutting block (1234).

5. The scanning galvanometer according to claim 1, characterized in that: A plurality of second abutment blocks (1235) are slidably disposed at one end of the through hole on the shell (1) located inside the shell (1), an end of the second abutment block (1235) close to the galvanometer motor is provided with an inclined surface, and the second abutment block (1235) is slidably engaged with the side wall of the galvanometer motor through the inclined surface, and an end of the second abutment block (1235) close to the galvanometer motor abuts against the side wall of the galvanometer motor; A plurality of fixing plates four (13) are fixedly arranged on the inner wall of the shell (1), and the plurality of fixing plates four (13) are arranged in a one-to-one correspondence with the plurality of abutment blocks two (1235). A push spring (14) is arranged between the fixing plate four (13) and the abutment block two (1235), and two ends of the push spring (14) are respectively fixedly arranged on the abutment block two (1235) and the fixing plate four (13); a second positioning component (15) for positioning the abutment block two (1235) is also arranged in the shell (1).

6. The scanning galvanometer according to claim 1, characterized in that: An airbag 1 (17) is mounted on the inner wall of the through hole of the shell (1), and an airbag 2 (18) is mounted on the inner wall of the shell (1). The airbag 2 (18) is connected to the airbag 1 (17). An extrusion plate (19) is slidably disposed in the shell (1). The airbag 1 (17) can abut against the side wall of the galvanometer motor, and the extrusion plate (19) can abut against the airbag 2 (18). A driving member for driving the extrusion plate (19) to move is also disposed in the shell (1).

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