Fixture for machining motorized spindle

Abstract

The utility model discloses a clamp for machining an electric spindle, belongs to the field of clamps, and aims to solve the problem that a driving structure of a clamping jaw mechanism adopts an air cylinder to provide power and then is connected through a swinging piece I, a swinging piece II, an adjustable pull rod and a flat pull rod, so that the number of the air cylinders is reduced, and the manufacturing cost of the clamp is reduced. Meanwhile, a transmission connection structure is relatively simple and convenient to overhaul and maintain, and due to the arrangement of a connection structure of the adjustable pull rods, the lengths of the two adjustable pull rods can be adjusted respectively, so that an arc-shaped claw arm I and an arc-shaped claw arm II on a group of clamping mechanisms are driven to be opened and closed at different opening degrees respectively when an air cylinder acts in the later period; and therefore, the motorized spindle bodies with different thicknesses can be conveniently clamped.

Description

Technical Field

[0001] The utility model relates to the field of fixtures, and more specifically, to a fixture for electric spindle processing. Background Art

[0002] The electric spindle is a new technology that has emerged in the field of CNC machine tools, integrating the machine tool spindle and the spindle motor.

[0003] After searching, it was found that in a fixture for electric spindle processing with a Chinese patent authorization publication number of CN202320653670.8, it includes a base plate, a vertical plate is arranged on the upper surface of the base plate, two groups of support groups are arranged on one side of the vertical plate, one group of support groups is fixed to the vertical plate through a pad, and the other group is connected to the adjustment group through a movable plate, and a clamping group is arranged in the middle of each support group; the adjustment group is mainly composed of bolts, slide grooves and moving blocks, and the vertical plate is provided with a slide groove, and a moving block is arranged on the rear side of the slide groove; the present application makes one group of support groups and the clamping group fixed on the vertical plate and the other group fixed on the moving plate through the setting of the moving plate and the adjustment group, and the distance between the two groups of support groups can be adjusted through the setting of the adjustment group, so that it is suitable for electric spindle housings of different lengths, and the setting of the elastic member can provide downward pressure to the support group installed on the moving plate, thereby preventing the moving plate from sliding up and down and improving the stability of clamping.

[0004] Based on the above, the inventor found that although two pressure plate structures that can clamp the shaft body are set on the vertical plate of the clamp, these two pressure plates need to be driven by two cylinders respectively to realize the action. Such a structure is not only not conducive to the simplification of the clamp driving structure, but also the use of two cylinders to operate at the same time also increases the manufacturing cost of the clamp. At the same time, since the contact pieces for clamping the shaft use pressure blocks and support blocks for contact clamping, the embracing clamping effect of the shaft is poor, which is not conducive to the stability of the shaft clamping structure. Therefore, we proposed a clamp for electric spindle processing to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a clamp for electric spindle processing, which first adopts a cylinder to provide power for the driving structure of the clamping claw mechanism, and then connects it through a pendulum one, a pendulum two, an adjustable pull rod and a flat pull rod, thereby reducing the number of cylinders and reducing the manufacturing cost of the clamp. At the same time, the transmission connection structure is also relatively simple and convenient for inspection and maintenance. Moreover, since the connection structure of the adjustable pull rod is provided, the lengths of the two adjustable pull rods can be adjusted separately, so that when the cylinder is actuated in the later stage, the arc-shaped claw arm one and the arc-shaped claw arm two on a clamping mechanism are driven to open and close with different opening and closing degrees respectively, thereby facilitating the clamping of electric spindle bodies of different thicknesses.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A fixture for electric spindle processing, comprising a fixture table, wherein a group of clamping mechanisms with the same structure are arranged on the fixture table, and the clamping mechanisms include two clamping jaw mechanisms with the same structure, wherein the clamping jaw mechanisms include a mounting plate fixedly welded to the top of the fixture table, wherein arc-shaped claw arms 1 and 2 are arranged on both sides of the mounting plate, respectively, and gears 1 and 2 are arranged on one side of the mounting plate at positions corresponding to the arc-shaped claw arms 1 and 2, and the gears 1 and 2 are meshed with each other;

[0010] A connecting arm is fixedly welded on one side of the outer wall of gear one and gear two, the top of the connecting arm on gear one is rotatably connected to the bottom of arc-shaped claw arm one through pin one, the top of the connecting arm on gear two is rotatably connected to the bottom of arc-shaped claw arm two through pin two, pin three is fixedly installed on the top of arc-shaped claw arm one and arc-shaped claw arm two, a group of pin four is fixedly installed on the top of the mounting plate, and the corresponding ends of pin three and pin four are rotatably connected through a connecting rod.

[0011] Furthermore, the two mounting plates on the clamping mechanism are rotationally connected via connecting shaft one and connecting shaft two, the two gears one are fixedly mounted on the connecting shaft one corresponding to one side of the mounting plate, and the two gears two are fixedly mounted on the connecting shaft two corresponding to one side of the mounting plate.

[0012] Furthermore, an axle seat section is fixedly connected to the clamping table at a position corresponding to a group of the clamping mechanism, one end of the two connecting shafts of a group of the clamping mechanism passes through the outside of the axle seat section, and a pendulum one and a pendulum two are fixedly installed on the two ends of a group of the connecting shafts, respectively, and a cylinder is rotatably connected to one side of the bottom of the clamping table through a base, and the end of the telescopic rod on one side of the cylinder is rotatably connected to the bottom of the pendulum one.

[0013] Furthermore, the tops of the ornamental piece 1 and the ornamental piece 2 are both rotatably connected with adjustable pull rods, and the two adjustable pull rods are rotatably connected via a flat pull rod.

[0014] Furthermore, an arc-shaped placement opening is provided on the top of the mounting plate, and an electric spindle body is arranged between the corresponding two clamping mechanisms on the clamping mechanism. The bottom of the outer wall of the electric spindle body is in contact with the corresponding top of the arc-shaped placement opening, and the two sides of the outer wall of the electric spindle body are clamped by the corresponding arc-shaped claw arm one and the arc-shaped claw arm two.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) In this solution, a cylinder is used to provide power for the driving structure of the clamping mechanism, and then the clamping mechanism is connected through the pendulum 1, the pendulum 2, the adjustable pull rod and the flat pull rod, thereby reducing the number of cylinders and the manufacturing cost of the clamp. At the same time, the transmission connection structure is relatively simple and convenient for inspection and maintenance. In addition, since the connection structure of the adjustable pull rod is provided, the lengths of the two adjustable pull rods can be adjusted respectively, so that when the cylinder is actuated in the later stage, the arc-shaped claw arm 1 and the arc-shaped claw arm 2 on a set of clamping mechanisms are opened and closed with different opening and closing degrees, thereby facilitating the clamping of electric spindle bodies of different thicknesses.

[0018] (2) In this solution, the bottom of the outer wall of the electric spindle body is in contact with the top of the corresponding arc-shaped opening, and the two sides of the outer wall of the electric spindle body are clamped in contact with the corresponding arc-shaped claw arm 1 and arc-shaped claw arm 2, so that the electric spindle body can achieve an embracing clamping effect, thereby improving the stability of the clamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of clamping the electric spindle body of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the clamp of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection between the adjustable pull rod and the flat pull rod of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Fixture table; 101. Shaft seat section;

[0025] 2. Clamping mechanism;

[0026] 3. Clamping mechanism; 4. Mounting plate; 401. Arc-shaped placement opening; 5. Arc-shaped claw arm 1; 6. Arc-shaped claw arm 2; 7. Gear 1; 701. Connecting arm; 8. Gear 2; 9. Pin 3; 10. Pin 4; 11. Connecting rod;

[0027] 12. Connecting shaft 1; 13. Connecting shaft 2; 14. Ornament 1; 15. Ornament 2; 16. Cylinder; 17. Adjustable tie rod; 18. Flat tie rod;

[0028] 19. Electric spindle body. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 4 A fixture for electric spindle processing, including a fixture table 1, a group of clamping mechanisms 2 with the same structure are arranged on the fixture table 1, and the clamping mechanism 2 includes two clamping jaw mechanisms 3 with the same structure, the clamping jaw mechanism 3 includes a mounting plate 4 fixedly welded to the top of the fixture table 1, arc-shaped claw arm 1 5 and arc-shaped claw arm 2 6 are arranged on both sides of the mounting plate 4, and a gear 1 7 and a gear 2 8 are arranged on one side of the mounting plate 4 corresponding to the position of the arc-shaped claw arm 1 5 and the arc-shaped claw arm 2 6, and the gear 1 7 and the gear 2 8 are meshed;

[0032] A connecting arm 701 is fixedly welded on one side of the outer wall of gear 1 7 and gear 2 8. The top of the connecting arm 701 on gear 1 7 is rotatably connected to the bottom of the arc-shaped claw arm 1 5 through a pin shaft 1. The top of the connecting arm 701 on gear 2 8 is rotatably connected to the bottom of the arc-shaped claw arm 2 6 through a pin shaft 2. A pin shaft 3 9 is fixedly installed on the top of the arc-shaped claw arm 1 5 and the arc-shaped claw arm 2 6. A group of pin shafts 4 10 is fixedly installed on the top of the mounting plate 4. The corresponding ends of the pin shafts 3 9 and the pin shafts 4 10 are rotatably connected through a connecting rod 11.

[0033] The two mounting plates 4 on the clamping mechanism 2 are rotatably connected via a connecting shaft 12 and a connecting shaft 2 13, the two gears 1 7 are respectively fixedly installed on the connecting shaft 12 on one side of the corresponding mounting plate 4, the two gears 2 8 are respectively fixedly installed on the connecting shaft 2 13 on one side of the corresponding mounting plate 4, the fixture table 1 at the position of a corresponding group of clamping mechanisms 2 is fixedly connected with an axle seat section 101, one end of the connecting shaft 2 13 of a group of clamping mechanisms 2 all penetrates to the outside of the axle seat section 101, and a pendulum 14 and a pendulum 2 15 are respectively fixedly installed at the end of a group of connecting shaft 2 13, a cylinder 16 is rotatably connected to one side of the bottom of the fixture table 1 through the base, the end of the telescopic rod on one side of the cylinder 16 is rotatably connected to the bottom of the pendulum 14, the tops of the pendulum 14 and the pendulum 2 15 are both rotatably connected with adjustable pull rods 17, and the two adjustable pull rods 17 are rotatably connected through a flat pull rod 18.

[0034] The use principle of this kind of electric spindle machining fixture is:

[0035] First, place the two electric spindle bodies 19 through the two arc-shaped placement openings 401 on the corresponding clamping mechanism 2, and then start the cylinder 16 to shrink the telescopic rod of the cylinder 16, driving the top of the pendulum 14 to rotate clockwise. At the same time, due to the connection of two adjustable pull rods 17 and the flat pull rod 18, a group of connecting shafts 13 of the clamping mechanism 2 can be driven to rotate clockwise at the same time, and then a group of gears 28 of the clamping mechanism 2 can be driven to rotate clockwise, and the arc-shaped claw arm 26 can be driven to achieve the closing process through the connection of the corresponding connecting arm 701. Since the gear 17 and the gear 28 are meshed, the arc-shaped claw arm 15 also achieves the closing process while the arc-shaped claw arm 26 achieves the closing process, thereby achieving the process of clamping the corresponding electric spindle body 19. If the clamping of the electric spindle body 19 needs to be released, it is only necessary to control the telescopic rod of the cylinder 16 to be pushed out.

[0036] When a group of clamping mechanisms 2 needs to clamp electric spindle bodies 19 of different outer diameters, it is only necessary to adjust the length of the adjustable pull rod 17 on the corresponding side to control the distance between the tops of the pendulum 14 and the pendulum 2 15, thereby achieving the effect of controlling the different opening and closing degrees of the arc-shaped claw arm 1 5 and the arc-shaped claw arm 2 6 when the telescopic rod of the cylinder 16 is extended and retracted to the same length.

[0037] Embodiment 2:

[0038] In view of the above embodiment 1, for further description, refer to Figure 1 An arc-shaped placement opening 401 is provided at the top of the mounting plate 4, and an electric spindle body 19 is arranged between the corresponding two clamping jaw mechanisms 3 on the clamping mechanism 2. The bottom of the outer wall of the electric spindle body 19 contacts the top of the corresponding arc-shaped placement opening 401, and the two sides of the outer wall of the electric spindle body 19 are clamped by the corresponding arc-shaped claw arm 1 5 and the arc-shaped claw arm 2 6.

[0039] The arc-shaped placement opening 401 is provided to facilitate the temporary placement of the electric spindle body 19 in the initial stage, and the bottom of the outer wall of the electric spindle body 19 is in contact with the corresponding top of the arc-shaped placement opening 401. The outer walls of the electric spindle body 19 are clamped and contacted on both sides by corresponding arc-shaped claw arms 1 5 and arc-shaped claw arms 2 6, so that the electric spindle body 19 can achieve an embracing clamping effect, thereby improving the stability of the clamping structure.

[0040] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A fixture for electric spindle machining, comprising a fixture table (1), characterized in that: The fixture table (1) is provided with a group of clamping mechanisms (2) of the same structure, and the clamping mechanism (2) includes two clamping jaw mechanisms (3) of the same structure, and the clamping jaw mechanism (3) includes a mounting plate (4) fixedly welded to the top of the fixture table (1), and arc-shaped claw arm 1 (5) and arc-shaped claw arm 2 (6) are respectively provided on both sides of the mounting plate (4), and gear 1 (7) and gear 2 (8) are provided on one side of the mounting plate (4) at the positions of the arc-shaped claw arm 1 (5) and the arc-shaped claw arm 2 (6), and the gear 1 (7) and the gear 2 (8) are meshed with each other; A connecting arm (701) is fixedly welded on one side of the outer wall of the gear one (7) and the gear two (8); the top of the connecting arm (701) located on the gear one (7) is rotatably connected to the bottom of the arc-shaped claw arm one (5) via a pin one; the top of the connecting arm (701) located on the gear two (8) is rotatably connected to the bottom of the arc-shaped claw arm two (6) via a pin two; the tops of the arc-shaped claw arm one (5) and the arc-shaped claw arm two (6) are both fixedly installed with a pin three (9); a group of pin four (10) is fixedly installed on the top of the mounting plate (4); the corresponding ends of the pin three (9) and the pin four (10) are rotatably connected via a connecting rod (11).

2. The electric spindle machining fixture according to claim 1, characterized in that: The two mounting plates (4) located on the clamping mechanism (2) are rotatably connected via a connecting shaft 1 (12) and a connecting shaft 2 (13); the two gears 1 (7) are respectively fixedly mounted on the connecting shaft 1 (12) corresponding to one side of the mounting plate (4); and the two gears 2 (8) are respectively fixedly mounted on the connecting shaft 2 (13) corresponding to one side of the mounting plate (4).

3. The electric spindle machining fixture according to claim 2, characterized in that: A shaft seat section (101) is fixedly connected to the fixture table (1) at the position of a group of the clamping mechanisms (2); one end of the second connecting shaft (13) of a group of the clamping mechanisms (2) passes through the outside of the shaft seat section (101); and a pendulum piece 1 (14) and a pendulum piece 2 (15) are fixedly installed at the end of the second connecting shaft (13) of a group, respectively; a cylinder (16) is rotatably connected to one side of the bottom of the fixture table (1) through a base; and the end of the telescopic rod on one side of the cylinder (16) is rotatably connected to the bottom of the pendulum piece 1 (14).

4. The electric spindle machining fixture according to claim 3, characterized in that: The tops of the first ornament (14) and the second ornament (15) are both rotatably connected with an adjustable pull rod (17), and the two adjustable pull rods (17) are rotatably connected via a flat pull rod (18).

5. The electric spindle machining fixture according to claim 1, characterized in that: An arc-shaped placement opening (401) is provided at the top of the mounting plate (4), and an electric spindle body (19) is provided between the two corresponding clamping jaw mechanisms (3) on the clamping mechanism (2). The bottom of the outer wall of the electric spindle body (19) contacts the top of the corresponding arc-shaped placement opening (401), and the two sides of the outer wall of the electric spindle body (19) are clamped by the corresponding arc-shaped claw arm 1 (5) and the arc-shaped claw arm 2 (6).

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