Z-axis walking mechanism of ultra-high-speed laser cladding equipment

Abstract

The utility model relates to the technical field of walking mechanisms, and discloses an ultra-high-speed laser cladding equipment Z-axis walking mechanism which comprises a base and a stand column, a driving unit used for driving the stand column is installed on one side of the base, the driving unit comprises two guide rails and a rack which are fixedly connected with the side wall of the base, and the rack is fixedly connected with the side wall of the base. Sliding sleeves are slidably connected to the outer walls of the guide rails, a fixing plate is installed between the outer walls of the two sliding sleeves, the stand columns are installed on the side wall of the fixing plate, driving equipment is installed on the outer wall of the fixing plate, and the output end of the driving equipment penetrates through the fixing plate and is provided with a gear; the driving unit used for driving the stand column is installed on the side wall of the base, the driving device serves as a driving source of the driving unit, the driving gear is matched with the rack to drive the sliding sleeve to move on the guide rail, and therefore the stand column is driven to walk along the Z axis, and compared with a traditional guide rail and ball screw driving structure, the driving unit reduces cost and is not prone to damage. Disassembly and assembly are convenient, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of walking mechanisms, in particular to a Z-axis walking mechanism of ultra-high-speed laser cladding equipment. Background Art

[0002] Laser cladding technology uses a high-energy laser beam as a heat source to melt powder materials onto the surface of parts through pneumatic or gravity powder feeding to prepare high-performance protective coatings, improve the surface hardness of the material, and improve wear resistance, corrosion resistance, oxidation resistance, high temperature resistance and other properties, thereby improving the service life of parts, production efficiency and product quality.

[0003] The laser head in the laser cladding equipment is installed on the column of the equipment. The column is moved by the Z-axis walking mechanism on the base of the laser cladding equipment, thereby driving the laser head to move through the column to clad the workpiece. However, the traditional Z-axis walking mechanism is a driving structure of a guide rail plus a ball screw pair. The ball screw pair has a complex structure, high cost, is easy to damage, has a large stroke and is relatively complicated to install. Therefore, a Z-axis walking mechanism for ultra-high-speed laser cladding equipment is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a Z-axis walking mechanism for ultra-high-speed laser cladding equipment, which reduces the cost of the Z-axis walking mechanism in the ultra-high-speed laser cladding equipment and improves the convenience of installation and service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Z-axis walking mechanism of ultra-high-speed laser cladding equipment, including a base and a column, a driving unit for driving the column is installed on one side of the base, the driving unit includes a guide rail and a rack fixedly connected to the side wall of the base, the number of the guide rails is two, the outer wall of the guide rail is slidably connected with a sleeve, a fixed plate is installed between the outer walls of the two sleeves, the column is installed on the side wall of the fixed plate, the outer wall of the fixed plate is installed with a driving device, the output end of the driving device is penetrated by a fixed plate and installed with a gear, the gear is meshed with the rack, a protective unit for shielding the driving unit is installed between the two ends of the base and the fixed plate, and a lubrication unit for lubricating the guide rail, the sleeve, the gear and the rack is installed on the guide rail.

[0006] Preferably, the driving device includes a reducer and a servo motor. The reducer is installed on the outer wall of the fixed plate. The output end of the reducer passes through the fixed plate and is fixedly connected to the gear. The servo motor is installed on the outer wall of the reducer. The servo motor drives the gear to rotate by driving the reducer.

[0007] Preferably, the protection unit includes two connecting plates respectively fixedly connected to the two ends of the base, and an accordion protective cover is fixedly connected between the adjacent sides of the two connecting plates and the fixed plate, and the accordion protective cover shields the sliding sleeve, the guide rail and the rack.

[0008] Preferably, the lubrication unit includes an oil storage tank, the interiors of the two sleeves are hollow structures, the multiple contact surfaces of the sleeve and the guide rail are rotatably connected to the first ball, the first ball protrudes into the hollow structure of the sleeve, the first ball is slidably connected to the outer wall of the guide rail, and both ends of the oil storage tank are connected to an oil outlet pipe, one end of the oil outlet pipe passes through the accordion protective cover and is connected to the internal hollow structure of the sleeve.

[0009] Preferably, the lubrication unit also includes a plurality of clearance grooves formed on the rack, the clearance grooves being connected to the tooth openings on the rack, a connecting tube being installed on the outer wall of one of the upper sleeves, one end of the connecting tube being connected to the internal hollow structure of the sleeve, and the other end of the connecting tube being rotatably connected to a second ball, which is slidably connected to the upper surface of the rack.

[0010] Preferably, the lubrication unit further comprises a clearance groove formed on the upper surface of the rack, and the second ball is slidably connected to the upper surface of the clearance groove.

[0011] Preferably, a steel plate shield is installed on the upper surface of the base to shield and protect the drive unit.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model installs a driving unit for driving the column on the side wall of the base. The driving unit uses a driving device as a driving source. The driving gear cooperates with the rack to drive the sliding sleeve to move on the guide rail, thereby driving the column to move along the Z axis. Different from the traditional guide rail plus ball screw driving structure, the driving unit reduces the cost, is not easy to damage, is convenient for disassembly and assembly, and improves practicality.

[0014] 2. The utility model installs a protection unit outside the guide rail, the sliding sleeve and the rack. The protection unit is composed of a connecting plate and an accordion protection cover. The accordion protection cover can be expanded and retracted when the column moves left and right, so that the accordion protection cover can effectively protect the driving unit and prevent dust from falling in and affecting the movement of the column.

[0015] 3. The utility model provides lubrication units on the guide rails and the racks, and the lubrication units lubricate as the columns move, thereby reducing wear and prolonging service life.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the drive unit of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 This is a schematic diagram of the front structure of the base of the utility model

[0021] Figure 5 It is a schematic diagram of the structure of the utility model;

[0022] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0023] Figure 7 It is a schematic diagram of the structure of the utility model.

[0024] In the figure: 1. base; 2. column; 3. drive unit; 31. guide rail; 32. sleeve; 33. fixed plate; 34. rack; 35. servo motor; 36. gear; 37. reducer; 4. lubrication unit; 41. oil tank; 42. oil outlet pipe; 43. first ball; 44. clearance groove; 45. second ball; 46. second ball; 47. clearance groove; 5. protection unit; 51. connecting plate; 52. accordion protective cover; 6. steel plate protective cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment of this embodiment includes a base 1 and a column 2. A driving unit 3 for driving the column 2 is installed on one side of the base 1. The driving unit 3 includes a guide rail 31 and a rack 34 fixedly connected to the side wall of the base 1. There are two guide rails 31. The outer wall of the guide rail 31 is slidably connected with a sleeve 32. A fixed plate 33 is installed between the outer walls of the two sleeves 32. The column 2 is installed on the side wall of the fixed plate 33. A driving device is installed on the outer wall of the fixed plate 33. The output end of the driving device is penetrated by the fixed plate 33 and is installed with a gear 36. The gear 36 is meshed with the rack 34. A protective unit 5 for shielding the driving unit 3 is installed between the two ends of the base 1 and the fixed plate 33. A lubrication unit 4 for lubricating the guide rail 31, the sleeve 32, the gear 36 and the rack 34 is installed on the guide rail 31.

[0027] like Figure 1-3 As shown, the Z-axis walking mechanism structure of the ultra-high-speed laser cladding equipment in the utility model is similar to the Z-axis walking mechanism structure of the existing ultra-high-speed laser cladding equipment. The main improvement of the utility model is to reduce the cost of the Z-axis walking mechanism in the ultra-high-speed laser cladding equipment, and improve the convenience of installation and service life; in the utility model, when it is necessary to drive the laser head of the ultra-high-speed laser cladding equipment to move, the laser head is installed on the column 2, the driving device is started, the driving device drives the gear 36 to rotate, the gear 36 is engaged with the rack 34, thereby driving the sleeve 32 to move on the outer wall of the guide rail 31, and the sleeve 32 drives the column 2 to move through the fixed plate 33, thereby realizing the movement of the laser head to clad the workpiece. Different from the traditional guide rail plus ball screw drive structure, the drive unit 3 in the utility model has a simpler structure, stable use, low manufacturing cost, not easy to damage, convenient disassembly and assembly, and improved practicality.

[0028] like Figure 3 As shown, the driving device includes a reducer 37 and a servo motor 35. The reducer 37 is installed on the outer wall of the fixed plate 33. The output end of the reducer 37 passes through the fixed plate 33 and is fixedly connected to the gear 36. The servo motor 35 is installed on the outer wall of the reducer 37. The servo motor 35 drives the gear 36 to rotate by driving the reducer 37. The driving device is composed of the reducer 37 and the servo motor 35. The speed of the output end of the servo motor 35 is reduced by the reducer 37, which increases the torque, reduces the load, saves more energy, reduces the possibility of damage, and improves the service life.

[0029] Among them, the servo motor 35 mentioned above can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The servo motor 35 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power line, and the main controller can be a conventional known device such as a computer that plays a control role.

[0030] like Figure 1 , 4 As shown, the protection unit 5 includes two connecting plates 51 respectively fixedly connected at both ends of the base 1, and an accordion protective cover 52 is fixedly connected between the adjacent side of the two connecting plates 51 and the fixed plate 33, and the accordion protective cover 52 shields the sliding sleeve 32, the guide rail 31 and the rack 34; when the servo motor 35 drives the column 2 to move, the fixed plate 33 drives the two accordion protective covers 52 at both ends thereof to expand and retract respectively, and the other ends of the two accordion protective covers 52 are fixed by the fixed plate 33, and the accordion protective cover 52 can effectively shield and protect the guide rail 31, the sliding sleeve 32, the rack 34 and the gear 36 to prevent dust, waste chips, etc. from falling into and affecting the stroke or causing damage, thereby improving practicality.

[0031] like Figure 3 , 5 As shown in Figures 6 and 7, the lubrication unit 4 includes an oil storage tank 41. The interiors of the two sleeves 32 are both hollow structures. The multiple contact surfaces of the sleeve 32 and the guide rail 31 are rotatably connected to the first ball 43. The first ball 43 protrudes into the hollow structure of the sleeve 32. The first ball 43 is slidably connected to the outer wall of the guide rail 31. Both ends of the oil storage tank 41 are connected to the oil outlet pipe 42. One end of the oil outlet pipe 42 passes through the accordion protective cover 52 and is connected to the inner hollow structure of the sleeve 32. Lubricating oil can be stored in the oil storage tank 41. When the sleeve 32 moves on the outer wall of the guide rail 31, the fixed plate 33 drives the oil storage tank 41 to move. The first ball 43 on the inner wall of the sleeve 32 slides on the outer wall of the guide rail 31, and the first ball 43 itself also rotates. The oil in the oil storage tank 41 flows to the hollow structure inside the sleeve 32 through the oil outlet pipe 42. The first ball 43 brings the oil in the hollow structure inside the sleeve 32 to the outer wall of the guide rail 31, thereby oiling the contact surface between the guide rail 31 and the sleeve 32, and lubricating the guide rail 31 and the sleeve 32 to reduce the wear caused by long-term sliding and increase the service life. Continuous and small amounts of oiling will not cause waste. When the oil in the oil storage tank 41 is insufficient, it can be added inside.

[0032] like Figure 5 , 7As shown, the lubrication unit 4 also includes a plurality of paving grooves 44 provided on the rack 34, the paving grooves 44 are connected to the tooth openings on the rack 34, a connecting tube 45 is installed on the outer wall of one of the upper sleeves 32, one end of the connecting tube 45 is connected to the internal hollow structure of the sleeve 32, and the other end of the connecting tube 45 is rotatably connected to a second ball 46, and the second ball 46 is slidably connected to the upper surface of the rack 34; when the sleeve 32 moves, the connecting tube 45 is driven to move, and the oil in the internal hollow structure of the sleeve 32 flows into the connecting tube 45, and the movement of the connecting tube 45 drives the second ball 46 to slide on the upper surface of the rack 34, and the second ball 46 itself also rotates, and the second ball 46 brings the oil in the connecting tube 45 to the rack 34, and the oil flowing to the rack 34 flows to the tooth openings of the rack 34 through the paving grooves 44, thereby realizing oiling of the meshing portion of the rack 34 and the gear 36, realizing automatic oiling, reducing wear, and increasing the service life.

[0033] like Figure 7 As shown, the lubrication unit 4 also includes a clearance groove 47 opened on the upper surface of the rack 34, and the second ball 46 is slidably connected to the upper surface of the clearance groove 47; the second ball 46 slides with the inner bottom surface of the clearance groove 47 when moving, and the clearance groove 47 can give way to prevent the oil from overflowing from the rack 34 to improve practicality.

[0034] like Figure 4 As shown, a steel plate shield 6 is installed on the upper surface of the base 1 to shield and protect the driving unit 3; the steel plate shield 6 can shield and protect the driving unit 3 and the protection unit 5, and the steel plate shield 6 can shield hard waste chips to further improve the protection.

[0035] The implementation steps in this embodiment are as follows: when it is necessary to drive the laser head of the ultra-high-speed laser cladding equipment to move, the laser head is installed on the column 2, and the servo motor 35 is started to work. The servo motor 35 drives the driving gear 36 to rotate through the reducer 37, and the gear 36 is meshed with the rack 34, thereby driving the sleeve 32 to move on the outer wall of the guide rail 31. The sleeve 32 drives the column 2 to move through the fixed plate 33, thereby realizing the movement of the laser head to clad the workpiece; when the fixed plate 33 moves, it drives the two accordion protective covers 52 at both ends thereof to expand and retract respectively, and the other ends of the two accordion protective covers 52 are fixed by the fixed plate 33, and the accordion protective covers 52 can effectively shield and protect the guide rail 31, the sleeve 32, the rack 34 and the gear 36; when the sleeve 32 moves on the outer wall of the guide rail 31, the fixed plate 33 drives the oil storage tank 41 to move, and the inner wall of the sleeve 32 A ball 43 slides on the outer wall of the guide rail 31, and the first ball 43 itself also rotates. The oil in the oil storage tank 41 flows to the hollow structure inside the sleeve 32 through the oil outlet pipe 42. The first ball 43 brings the oil in the hollow structure inside the sleeve 32 to the outer wall of the guide rail 31, thereby oiling the guide rail 31 and the sleeve 32 that contact the ground, and lubricating the guide rail 31 and the sleeve 32. When the sleeve 32 moves, it drives the connecting pipe 45 to move. The oil in the hollow structure inside the sleeve 32 flows into the connecting pipe 45. The movement of the connecting pipe 45 drives the second ball 46 to slide on the upper surface of the rack 34. The second ball 46 itself rotates. The second ball 46 brings the oil in the connecting pipe 45 to the rack 34. The oil flowing to the rack 34 flows to the tooth mouth of the rack 34 through the give way groove 44, thereby oiling the meshing point of the rack 34 and the gear 36.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A Z-axis walking mechanism of an ultra-high-speed laser cladding equipment, comprising a base (1) and a column (2), characterized in that: A driving unit (3) for driving a column (2) is installed on one side of the base (1). The driving unit (3) comprises a guide rail (31) and a rack (34) fixedly connected to a side wall of the base (1). There are two guide rails (31). A sliding sleeve (32) is slidably connected to the outer wall of the guide rail (31). A fixing plate (33) is installed between the outer walls of the two sliding sleeves (32). The column (2) is installed on the side wall of the fixing plate (33). A driving device is installed on the outer wall of the fixing plate (33). The output end of the driving device is penetrated by the fixing plate (33) and is installed with a gear (36). The gear (36) is meshedly connected with the rack (34). A protective unit (5) for shielding the driving unit (3) is installed between the two ends of the base (1) and the fixing plate (33). A lubrication unit (4) for lubricating the guide rail (31), the sliding sleeve (32), the gear (36) and the rack (34) is installed on the guide rail (31).

2. The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment according to claim 1 is characterized in that: The driving device comprises a reducer (37) and a servo motor (35). The reducer (37) is mounted on the outer wall of the fixed plate (33). The output end of the reducer (37) passes through the fixed plate (33) and is fixedly connected to the gear (36). The servo motor (35) is mounted on the outer wall of the reducer (37). The servo motor (35) drives the gear (36) to rotate by driving the reducer (37).

3. The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment according to claim 2 is characterized in that: The protection unit (5) comprises two connection plates (51) respectively fixedly connected to two ends of the base (1), and an accordion protection cover (52) is fixedly connected between the adjacent sides of the two connection plates (51) and the fixed plate (33), and the accordion protection cover (52) shields the sliding sleeve (32), the guide rail (31) and the rack (34).

4. The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment according to claim 3 is characterized in that: The lubrication unit (4) comprises an oil storage tank (41), the interiors of the two sleeves (32) are both hollow structures, the multiple contact surfaces of the sleeve (32) and the guide rail (31) are rotatably connected to the first ball (43), the first ball (43) protrudes into the hollow structure of the sleeve (32), the first ball (43) is slidably connected to the outer wall of the guide rail (31), and both ends of the oil storage tank (41) are connected to the oil outlet pipe (42), one end of the oil outlet pipe (42) passes through the accordion protective cover (52) and is connected to the internal hollow structure of the sleeve (32).

5. The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment according to claim 4 is characterized in that: The lubrication unit (4) further comprises a plurality of paving grooves (44) formed on the rack (34), the paving grooves (44) being connected to the tooth openings on the rack (34), a connecting tube (45) being installed on the outer wall of one of the upper sliding sleeves (32), one end of the connecting tube (45) being connected to the internal hollow structure of the sliding sleeve (32), and the other end of the connecting tube (45) being rotatably connected to a second ball (46), and the second ball (46) being slidably connected to the upper surface of the rack (34).

6. The Z-axis travel mechanism of the ultra-high-speed laser cladding equipment according to claim 5, characterized in that: The lubrication unit (4) also includes a clearance groove (47) formed on the upper surface of the rack (34), and the second ball (46) is slidably connected to the upper surface of the clearance groove (47).

7. The Z-axis walking mechanism of the ultra-high-speed laser cladding equipment according to claim 2 is characterized in that: A steel plate shield (6) is installed on the upper surface of the base (1) to shield and protect the drive unit (3).

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