A clamping device for machining keyway on end face of locking shaft of articulated arm of electric injection molding machine

Abstract

The utility model discloses a clamping device for machining the keyway of the end face of the locking shaft of the articulated arm of an electric injection molding machine, comprising a clamping base, a vertical plate is arranged on the top of the clamping base, a lower clamping device is arranged on the top of the clamping base, the lower clamping device comprises a second motor, a gear is arranged on the output shaft of the second motor, racks meshing with the gears are symmetrically arranged on the top of the clamping base, mounting blocks are symmetrically arranged on the sides of the two racks close to each other, a lower arc-shaped clamping block is arranged on the side wall of the mounting block, the gear is driven to rotate by the second motor, and the gear cooperates with the two racks to drive the mounting block on the side wall of the rack and the lower arc-shaped clamping block to move, and the lower arc-shaped clamping block is simultaneously moved inwardly to clamp locking shafts of different sizes, thereby increasing the practicality of the device and avoiding the need to replace a plurality of clamping devices of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of a locking shaft processing device for a joint arm of an injection molding machine, in particular to a clamping device for processing a keyway on the end face of a locking shaft of a joint arm of an electric injection molding machine. Background Art

[0002] The locking shaft of the joint arm of the injection molding machine is cylindrical. During the processing, the end face of the locking shaft will be subjected to keyway milling, punching and tapping processes. The keyway milling process requires the equipment to pass through both ends of the locking shaft. First, parallel keyways are milled out. Traditional equipment cannot simultaneously mill both ends of the locking shaft, so the keyways need to be milled one by one.

[0003] A Chinese patent (publication number CN215317064U) discloses a fixture for processing the keyway on the end face of the locking shaft of an articulated arm of an injection molding machine, comprising a mounting seat, on which a first station and a second station are arranged in a mirror image; a first positioning platform and a second positioning platform are fixedly installed on the first station and the second station, respectively, two pressure sources are arranged between the first positioning platform and the second positioning platform, and also include a first pressure head and a second pressure head fixedly installed on the output ends of the two pressure sources, respectively. This fixture can realize the rapid placement and clamping of the locking shaft, and when the keyway milling at one end of the locking shaft is completed, the milling position of the keyway at the other end can be quickly corrected and positioned.

[0004] When in use, the device can position the locking shaft through multiple positioning modules in conjunction with the cylinder and the pressure head. However, the device cannot adjust the internal spacing of the positioning modules during use, resulting in the device being able to only position a locking shaft of one size when in use. If positioning of locking shafts of other sizes is required, clamping devices of other sizes must be replaced, which is not only troublesome but also increases the workflow. Utility Model Content

[0005] In view of the above problems, a clamping device for processing the keyway on the end face of the locking shaft of the articulated arm of an electric injection molding machine is provided. A second motor is used to drive the gear to rotate, and the gear cooperates with the two racks to drive the mounting block and the lower arc-shaped clamping block on the side wall of the rack to move. The lower arc-shaped clamping block is moved inward at the same time, so that locking shafts of different sizes can be clamped, thereby increasing the practicality of the device.

[0006] In order to solve the problems of the prior art, the utility model provides a clamping device for processing the keyway on the end face of the locking shaft of the articulated arm of an electric injection molding machine, comprising a clamping base, a vertical plate is arranged on the top of the clamping base, a lower clamping device is arranged on the top of the clamping base, the lower clamping device comprises a second motor, a gear is arranged on the output shaft of the second motor, racks meshingly connected to the gears are symmetrically arranged on the top of the clamping base, mounting blocks are symmetrically arranged on the sides where the two racks are close to each other, and a lower arc-shaped clamping block is arranged on the side wall of the mounting block.

[0007] Preferably, through holes for installing limiting rods are provided inside the two racks, and two ends of the limiting rods are respectively connected to the inner walls on both sides of the clamping base.

[0008] Preferably, sliders are symmetrically arranged at the bottom of the two racks, and a sliding groove for the sliders to move is provided on the upper surface of the clamping base.

[0009] Preferably, a lower cleaning brush is provided at the bottom of the mounting block, and a brush surface of the lower cleaning brush contacts the upper surface of the clamping base.

[0010] Preferably, a plurality of leakage holes for collecting debris are provided on the upper surface of the clamping base, and a chip collecting bin is provided inside the clamping base.

[0011] Preferably, a first motor is disposed on the side wall of the vertical plate, an output shaft of the first motor is provided with a screw through a coupling, an external thread of the screw is connected to a linear slide, and an upper clamping device is disposed on the side wall of the linear slide.

[0012] Preferably, the upper clamping device comprises a cylinder, and an upper arc-shaped clamping block is provided at the telescopic end of the cylinder.

[0013] Preferably, an upper cleaning brush is provided on the other side wall of the linear slide, and the brush surface of the upper cleaning brush contacts the side wall of the vertical plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The second motor drives the gear to rotate, and the gear cooperates with the two racks to drive the mounting block on the rack side wall and the lower arc-shaped clamping block to move. The lower arc-shaped clamping block moves inward at the same time, so that locking shafts of different sizes can be clamped, which increases the practicality of the device and avoids the need to replace multiple clamping devices of different sizes.

[0016] 2. The linear slide is driven by the first motor, and the upper cleaning brush on the side wall of the linear slide can also be driven to clean the side wall of the vertical plate. Then the gear is driven by the second motor to rotate, and the gear drives the rack to move, which also drives the mounting block and the lower cleaning brush to move, so as to clean the debris pushed on the upper surface of the clamping base, so that the debris falls into the collecting bin through the leakage hole, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model discloses an overall structural diagram of a clamping device for machining a keyway on the end face of a locking shaft of an electric injection molding machine articulated arm.

[0018] Figure 2 The invention discloses a structural schematic diagram of an upper clamping device in a clamping device for machining a keyway on an end face of a locking shaft of an articulated arm of an electric injection molding machine.

[0019] Figure 3 The invention discloses a structural schematic diagram of a lower clamping device in a clamping device for machining a keyway on an end face of a locking shaft of an articulated arm of an electric injection molding machine.

[0020] Figure 4 The present invention is a schematic diagram of the structure of a rack in a clamping device for machining a keyway on the end face of a locking shaft of an electric injection molding machine articulated arm.

[0021] Figure 5 The invention discloses a structural schematic diagram of a limit rod and a slide block in a clamping device for machining a keyway on the end face of a locking shaft of an articulated arm of an electric injection molding machine.

[0022] Figure 6 The invention discloses a structural schematic diagram of a second motor in a clamping device for machining a keyway on an end face of a locking shaft of an electric injection molding machine.

[0023] The numbers in the figure are: 1. Clamping base; 2. Vertical plate; 3. Linear slide; 4. Upper cleaning brush; 5. First motor; 6. Screw; 7. Cylinder; 8. Upper arc clamping block; 9. Chip collection drawer; 10. Limit rod; 11. Rack; 12. Lower cleaning brush; 13. Mounting block; 14. Lower arc clamping block; 15. Gear; 16. Slider; 17. Second motor. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figures 1 to 6 As shown, the utility model provides:

[0026] A clamping device for machining a keyway on the end face of a locking shaft of an articulated arm of an electric injection molding machine comprises a clamping base 1, a vertical plate 2 is arranged on the top of the clamping base 1, a lower clamping device is arranged on the top of the clamping base 1, the lower clamping device comprises a second motor 17, a gear 15 is arranged on the output shaft of the second motor 17, racks 11 meshingly connected to the gear 15 are symmetrically arranged on the top of the clamping base 1, mounting blocks 13 are symmetrically arranged on the sides where the two racks 11 are close to each other, and a lower arc-shaped clamping block 14 is arranged on the side wall of the mounting block 13.

[0027] The gear 15 is driven to rotate by the second motor 17, and the gear 15 cooperates with the two racks 11 to drive the mounting block 13 and the lower arc-shaped clamping block 14 on the side wall of the rack 11 to move. The lower arc-shaped clamping block 14 is moved inward at the same time, so that locking shafts of different sizes can be clamped, which increases the practicality of the device and avoids the need to replace clamping devices of multiple different sizes.

[0028] like Figure 4 As shown, through holes for installing the limiting rod 10 are provided inside the two racks 11 , and two ends of the limiting rod 10 are respectively connected to the inner walls of the clamping base 1 on both sides.

[0029] The limiting rod 10 makes the rack 11 more stable when moving.

[0030] like Figure 5 As shown, the bottoms of the two racks 11 are symmetrically provided with sliders 16 , and the upper surface of the clamping base 1 is provided with a sliding groove for the sliders 16 to move.

[0031] The slide block 16 can prevent the rack 11 from being displaced during movement.

[0032] like Figure 4 As shown, a lower cleaning brush 12 is provided at the bottom of the mounting block 13 , and the brush surface of the lower cleaning brush 12 is in conflict with the upper surface of the clamping base 1 .

[0033] By moving the lower cleaning brush 12 , the debris pushed onto the upper surface of the clamping base 1 can be cleaned.

[0034] like Figure 3 As shown, a plurality of leakage holes for collecting debris are provided on the upper surface of the clamping base 1 , and a debris collecting bin 9 is provided inside the clamping base 1 .

[0035] The debris can be dropped into the inside of the chip collecting bin 9 through the leakage hole, which is convenient for cleaning.

[0036] like Figure 2 As shown, a first motor 5 is disposed on the side wall of the vertical plate 2, an output shaft of the first motor 5 is provided with a screw 6 through a coupling, an external thread of the screw 6 is connected to a linear slide 3, and an upper clamping device is disposed on the side wall of the linear slide 3.

[0037] The first motor 5 drives the linear slide 3 and the upper clamping device to move, so that locking shafts at different heights can be clamped.

[0038] like Figure 2 As shown, the upper clamping device includes a cylinder 7, and an upper arc-shaped clamping block 8 is provided at the telescopic end of the cylinder 7.

[0039] The locking shaft can be limited by cylinder 7

[0040] like Figure 2 As shown, an upper cleaning brush 4 is provided on the other side wall of the linear slide 3 , and the brush surface of the upper cleaning brush 4 is in contact with the side wall of the vertical plate 2 .

[0041] The linear slide 3 is driven to work by a motor, and the upper cleaning brush 4 on the side wall of the linear slide 3 can also be driven to clean the side wall of the vertical plate 2.

[0042] The above embodiments only express a clamping device or several embodiments of the utility model for machining the keyway of the end face of the locking shaft of the articulated arm of an electric injection molding machine, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine articulated arm, characterized in that: The invention comprises a clamping base (1), a vertical plate (2) is arranged on the top of the clamping base (1), a lower clamping device is arranged on the top of the clamping base (1), the lower clamping device comprises a second motor (17), the output shaft of the second motor (17) is arranged with a gear (15), a rack (11) meshingly connected with the gear (15) is symmetrically arranged on the top of the clamping base (1), a mounting block (13) is symmetrically arranged on one side of the two racks (11) close to each other, and a lower arc-shaped clamping block (14) is arranged on the side wall of the mounting block (13).

2. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 1, characterized in that: Through holes for installing the limiting rod (10) are provided inside the two racks (11), and the two ends of the limiting rod (10) are respectively connected to the inner walls on both sides of the clamping base (1).

3. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 2, characterized in that: Slide blocks (16) are symmetrically arranged at the bottom of the two racks (11), and a sliding groove for the slide blocks (16) to move is provided on the upper surface of the clamping base (1).

4. A clamping device for machining key grooves on the end face of a locking shaft of an electric injection molding machine joint arm according to claim 1, characterized in that: A lower cleaning brush (12) is provided at the bottom of the mounting block (13), and the brush surface of the lower cleaning brush (12) is in contact with the upper surface of the clamping base (1).

5. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 1, characterized in that: The upper surface of the clamping base (1) is provided with a plurality of leakage holes for collecting debris, and a debris collecting bin (9) is arranged inside the clamping base (1).

6. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 1, characterized in that: A first motor (5) is arranged on the side wall of the vertical plate (2); an output shaft of the first motor (5) is provided with a screw rod (6) via a coupling; an external thread of the screw rod (6) is connected to a linear slide (3); and an upper clamping device is arranged on the side wall of the linear slide (3).

7. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 6, characterized in that: The upper clamping device comprises a cylinder (7), and an upper arc-shaped clamping block (8) is provided at the telescopic end of the cylinder (7).

8. A clamping device for machining the keyway of the locking shaft end face of an electric injection molding machine joint arm according to claim 6, characterized in that: An upper cleaning brush (4) is provided on the other side wall of the linear slide (3), and the brush surface of the upper cleaning brush (4) is in contact with the side wall of the vertical plate (2).

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