Lifting device for CNC machining center

Abstract

The lifting device for the CNC machining center comprises a base used for installation and a protective shell fixedly arranged at the upper end of the base, and is characterized by further comprising a transmission rod, the outer end of the transmission rod is fixedly connected with the upper end of the protective shell, the right end of the transmission rod is connected with a handle, and the handle is fixedly connected with the base. A ratchet wheel and a first gear are arranged at the outer end of the middle of the transmission rod, the first gear is located on the left side of the ratchet wheel, a hook rod is arranged at the upper end of the ratchet wheel, an elastic piece is arranged at the upper end of the hook rod, a second gear is arranged at the lower end of the first gear, and a first connecting rod is fixedly installed in the second gear. A third gear is fixed to the outer end of the first connecting rod, and a tooth column is arranged at the rear end of the third gear. According to the lifting device for the CNC machining center, the machining height of a workpiece can be conveniently fixed, the workpiece can be conveniently adjusted to ascend, the clamping distance can be conveniently adjusted according to the size of the workpiece, and meanwhile the workpiece is clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a lifting device for a CNC machining center. Background Art

[0002] At present, the lifting method of machining center machine tools is to manually or motor-drive the lifting table up and down to the desired position, and then suspend it on the column. However, the lifting device cannot adjust the clamping distance and the processing height according to the size of the workpiece, which causes deviations in the processing of some workpieces. Therefore, a lifting device is designed that can adjust the clamping distance according to the size of the workpiece and adjust the processing height according to the thickness of the workpiece.

[0003] A lifting platform device for a CNC machining center provided by announcement number CN 203804570 U includes a base, a column is arranged on the base, a lifting device is arranged on one side of the column, the lifting device includes a support frame fixed on the column, two mutually parallel guide rails are arranged on the support frame, a sliding block is sleeved on the guide rail, the sliding block is driven by a motor arranged on the support frame, a linkage mechanism is arranged on the sliding block, one end of a synchronous belt is fixed on the side wall of the linkage mechanism, and the synchronous belt is arranged on the support frame through a synchronous belt track. The utility model adopts a lifting device to fix the lifting platform, and the spindle feeds and moves, so that the workpiece is fixed on the workbench, and a solid working platform can be obtained when processing the workpiece, thereby ensuring the processing accuracy of the workpiece.

[0004] The above-mentioned prior art solutions have the following defects: it is not convenient to fix the processing height of the workpiece, it is not convenient to adjust the workpiece to rise, it is not convenient to adjust the clamping distance according to the size of the workpiece, and it is impossible to clamp the workpiece. Therefore, the utility model provides a lifting device for a CNC machining center to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for a CNC machining center to solve the problems raised in the above-mentioned background technology that it is inconvenient to fix the height of the workpiece for machining, it is inconvenient to adjust the workpiece to rise, it is inconvenient to adjust the clamping distance according to the size of the workpiece, and it is impossible to clamp the workpiece.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A lifting device for a CNC machining center, comprising: a base for installation, a protective shell fixedly arranged on the upper end of the base;

[0007] The invention further comprises: a transmission rod, the outer end of the transmission rod is fixedly connected to the upper end of the protective shell, and the right end of the transmission rod is connected to a handle, a ratchet and a first gear are arranged at the outer end of the middle part of the transmission rod, and the first gear is located on the left side of the ratchet, a hook rod is arranged at the upper end of the ratchet, and a spring sheet is arranged at the upper end of the hook rod, a second gear is arranged at the lower end of the first gear, and a first connecting rod is fixedly installed inside the second gear, and a third gear is fixed at the outer end of the first connecting rod, and a tooth column is arranged at the rear end of the third gear, a tray is arranged at the upper end of the tooth column, and a motor is installed inside the tray, and the upper end of the motor is connected to the second connecting rod, a turntable is fixed at the upper end of the second connecting rod, a third connecting rod and a fourth connecting rod are installed at the upper end of the turntable, and the fourth connecting rod is located at the rear side of the third connecting rod, a first splint is connected to the left side of the third connecting rod, and a second splint is connected to the right side of the fourth connecting rod.

[0008] Preferably, the upper end of the ratchet is connected to the hook rod in a snap-fit ​​manner, and the upper end of the hook rod is connected to the spring sheet in a snap-fit ​​manner.

[0009] Preferably, the lower end of the first gear is connected to the second gear in a meshing manner, and the first connecting rod forms a rotating structure inside the second gear.

[0010] Preferably, the rear side of the third gear is connected to the gear column in a meshing manner, and the gear column forms a sliding structure at the upper end of the protective shell.

[0011] Preferably, the second connecting rod forms a rotating structure at the upper end of the motor, the turntable forms a rotating structure at the upper end of the second connecting rod, and the third connecting rod forms a rotating structure at the upper end of the turntable.

[0012] Preferably, the upper ends of the first clamping plate and the second clamping plate are both provided with clamping arms, and the upper end of the first clamping plate is connected to the clamping arms in a meshing manner.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the CNC machining center uses a lifting device to fix the height of the workpiece for machining, to adjust the workpiece to rise, to adjust the clamping distance according to the size of the workpiece, and to clamp the workpiece at the same time;

[0014] 1. A ratchet, a hook rod and a spring sheet are provided. The transmission rod and the ratchet are driven to rotate by holding the handle. When the ratchet stops rotating, the hook rod is driven to engage with the ratchet by the elasticity of the spring sheet, so that the hook rod fixes the position of the ratchet, and the tooth column adjusts the rising height when rising, which is convenient for fixing the height of the workpiece processing;

[0015] 2. A first gear, a second gear and a gear column are provided, and the first gear drives the second gear to rotate, so that the second gear drives the first connecting rod and the third gear to rotate, and the third gear is meshed with the gear column, so that the gear column drives the tray to move upward, and there is a clamped workpiece at the upper end of the tray, which is convenient for adjusting the workpiece to rise;

[0016] 3. A turntable, a first clamping plate and a clamping arm are provided. The workpiece is placed on the upper ends of the first clamping plate and the second clamping plate, and the clamping arm is adjusted to fit the surface of the workpiece, so that the starting motor drives the second connecting rod and the turntable to rotate, and the turntable drives the third connecting rod and the fourth connecting rod to rotate, so that the fourth connecting rod drives the first clamping plate and the second clamping plate to move toward the middle to clamp and fix the workpiece, which is convenient for adjusting the clamping distance according to the size of the workpiece and clamping the workpiece at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the connection structure between the ratchet and the hook rod of the utility model.

[0021] In the figure: 1. base; 2. protective shell; 3. transmission rod; 4. handle; 5. ratchet; 6. first gear; 7. hook rod; 8. spring piece; 9. second gear; 10. first connecting rod; 11. third gear; 12. gear column; 13. tray; 14. motor; 15. second connecting rod; 16. turntable; 17. third connecting rod; 18. fourth connecting rod; 19. first clamping plate; 20. second clamping plate; 21. clamping arm. DETAILED DESCRIPTION

[0022] 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 field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a lifting device for a CNC machining center, including a base 1, a protective shell 2, a transmission rod 3, a handle 4, a ratchet 5, a first gear 6, a hook rod 7, a spring 8, a second gear 9, a first connecting rod 10, a third gear 11, a gear column 12, a tray 13, a motor 14, a second connecting rod 15, a turntable 16, a third connecting rod 17, a fourth connecting rod 18, a first clamping plate 19, a second clamping plate 20, and a clamping arm 21.

[0024] The outer end of the transmission rod 3 is fixedly connected to the upper end of the protective shell 2, and the right end of the transmission rod 3 is connected to a handle 4, a ratchet 5 and a first gear 6 are arranged at the outer end of the middle part of the transmission rod 3, and the first gear 6 is located on the left side of the ratchet 5, a hook rod 7 is arranged at the upper end of the ratchet 5, and a spring piece 8 is arranged at the upper end of the hook rod 7, a second gear 9 is arranged at the lower end of the first gear 6, and a first connecting rod 10 is fixedly installed inside the second gear 9, and a third gear 11 is fixed at the outer end of the first connecting rod 10, and the third gear 11 is arranged at the lower end of the first gear 6. A gear column 12 is provided at the rear end, a tray 13 is provided at the upper end of the gear column 12, and a motor 14 is installed inside the tray 13, and a second connecting rod 15 is connected to the upper end of the motor 14, a turntable 16 is fixed to the upper end of the second connecting rod 15, a third connecting rod 17 and a fourth connecting rod 18 are installed at the upper end of the turntable 16, and the fourth connecting rod 18 is located at the rear side of the third connecting rod 17, a first splint 19 is connected to the left side of the third connecting rod 17, and a second splint 20 is connected to the right side of the fourth connecting rod 18.

[0025] like Figure 4 As shown, the upper end of the ratchet 5 is connected to the hook rod 7 in a snap-fit ​​manner, and the upper end of the hook rod 7 is connected to the spring 8 in a snap-fit ​​manner, so as to fix the height of the workpiece rise.

[0026] like Figure 3 As shown, the lower end of the first gear 6 is connected to the second gear 9 in a meshing manner, and the first connecting rod 10 forms a rotating structure inside the second gear 9.

[0027] like Figure 1 As shown, the rear side of the third gear 11 is connected to the tooth column 12 in a meshing manner, and the tooth column 12 forms a sliding structure at the upper end of the protective shell 2, which is convenient for adjusting the lifting height of the workpiece during processing.

[0028] like Figure 1 and Figure 2 As shown, the second connecting rod 15 forms a rotating structure at the upper end of the motor 14, and the turntable 16 forms a rotating structure at the upper end of the second connecting rod 15, and the third connecting rod 17 forms a rotating structure at the upper end of the turntable 16, which is convenient for clamping the workpiece.

[0029] like Figure 1 and Figure 2 As shown, the upper ends of the first clamping plate 19 and the second clamping plate 20 are both provided with clamping arms 21, and the upper end of the first clamping plate 19 is connected to the clamping arms 21 in a meshing manner. Compared with the prior art, the beneficial effects of the utility model are: the lifting device for the CNC machining center is convenient for adjusting the clamping distance according to the size of the workpiece;

[0030] Working principle: Figure 1 , Figure 2 and Figure 4 As shown, when using the lifting device for the CNC machining center, first, the workpiece is placed at the upper end of the first clamping plate 19 and the second clamping plate 20, and the motor 14 is started to drive the second connecting rod 15 and the turntable 16 to rotate, so that the turntable 16 drives the third connecting rod 17 and the fourth connecting rod 18 to rotate, so that the third connecting rod 17 and the fourth connecting rod 18 drive the first clamping plate 19 and the second clamping plate 20 to move toward the middle, so that the workpiece is clamped and fixed, and the clamping arm 21 can be adjusted to adjust the clamping distance according to the size of the workpiece. After the workpiece is clamped, the handle 4 is held to drive the transmission rod 3 and the ratchet 5 to rotate, and the transmission rod 3 and the ratchet 5 are also driven. The first gear 6 rotates, and the first gear 6 drives the second gear 9 and the first connecting rod 10 to rotate, so that the first connecting rod 10 drives the third gear 11 to rotate, and the third gear 11 engages with the tooth column 12 during the rotation process, so that the tooth column 12 drives the tray 13 to move upward, and the tray 13 drives the clamped workpiece to move upward. When the tray 13 moves upward to a moving extent, the ratchet 5 stops rotating, and the spring piece 8 rebounds to drive the hook rod 7 to engage and fix the ratchet 5, so as to fix the processing height of the workpiece, and start the electric drill to process the workpiece. After the processing is completed, return to the original steps.

[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting device for a CNC machining center, comprising: A base (1) for installation, and a protective shell (2) fixedly arranged on the upper end of the base (1); It is characterized by further comprising: A transmission rod (3), the outer end of the transmission rod (3) is fixedly connected to the upper end of the protective shell (2), and the right end of the transmission rod (3) is connected to a handle (4), a ratchet (5) and a first gear (6) are arranged at the middle outer end of the transmission rod (3), and the first gear (6) is located on the left side of the ratchet (5), a hook rod (7) is arranged at the upper end of the ratchet (5), and a spring sheet (8) is arranged at the upper end of the hook rod (7), a second gear (9) is arranged at the lower end of the first gear (6), and a first connecting rod (10) is fixedly installed inside the second gear (9), and a third gear (11) is fixed at the outer end of the first connecting rod (10), and the third gear (11) is arranged A tooth column (12) is provided at the rear end of (11), a tray (13) is provided at the upper end of the tooth column (12), a motor (14) is installed inside the tray (13), and the upper end of the motor (14) is connected to a second connecting rod (15), a turntable (16) is fixed to the upper end of the second connecting rod (15), a third connecting rod (17) and a fourth connecting rod (18) are installed at the upper end of the turntable (16), and the fourth connecting rod (18) is located at the rear side of the third connecting rod (17), the left side of the third connecting rod (17) is connected to a first clamping plate (19), and the right side of the fourth connecting rod (18) is connected to a second clamping plate (20).

2. A lifting device for a CNC machining center according to claim 1, characterized in that: The upper end of the ratchet wheel (5) is connected to the hook rod (7) in a snap-fit ​​manner, and the upper end of the hook rod (7) is connected to the spring sheet (8) in a snap-fit ​​manner.

3. The lifting device for a CNC machining center according to claim 1, characterized in that: The lower end of the first gear (6) is connected to the second gear (9) in a meshing manner, and the first connecting rod (10) forms a rotating structure inside the second gear (9).

4. The lifting device for a CNC machining center according to claim 1, characterized in that: The rear side of the third gear (11) is connected to the gear column (12) in a meshing manner, and the gear column (12) forms a sliding structure at the upper end of the protective shell (2).

5. The lifting device for a CNC machining center according to claim 1, characterized in that: The second connecting rod (15) forms a rotating structure at the upper end of the motor (14), the turntable (16) forms a rotating structure at the upper end of the second connecting rod (15), and the third connecting rod (17) forms a rotating structure at the upper end of the turntable (16).

6. The lifting device for a CNC machining center according to claim 1, characterized in that: The upper ends of the first clamping plate (19) and the second clamping plate (20) are both provided with clamping arms (21), and the upper end of the first clamping plate (19) and the clamping arms (21) are connected in a meshing manner.

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