Staggered automatic clamping mechanism

Abstract

The utility model belongs to the technical field of clamping jigs, and discloses a staggered type automatic clamping mechanism which comprises a bottom plate, a plurality of sliding grooves are formed in the two sides of the top of the bottom plate in a staggered mode, a movable seat is arranged at the tops of the sliding grooves, an air cylinder clamp is arranged at the top of the movable seat, a sliding block is arranged at the bottom of the movable seat, and a spring barrel is arranged on one side of the outer portion of the bottom plate. A telescopic column is slidably arranged outside the spring barrel in a limited mode, a rotary knob is arranged at the outer end of the telescopic column, a two-way screw is arranged at one end of the spring barrel, threaded blocks with threaded sleeves are arranged at the two ends of the two-way screw, and the two sides of each threaded block are sequentially and fixedly connected with all the sliding blocks on the same side in the bottom plate through arranged connecting plates. The sliding blocks on the same side of the bottom plate are connected through the connecting plate, and the threaded blocks, the threaded sleeves and the two-way screws are matched to drive the sliding blocks, so that the purpose of adjusting the distance between the air cylinder clamps on the two sides of the top of the bottom plate is achieved, the positions of the air cylinder clamps are adjusted according to the width of the aluminum profile, and the practicability of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping fixtures, and in particular relates to a staggered automatic clamping mechanism. Background Art

[0002] In the past processing of aluminum alloy parts, small and medium batches of parts are basically clamped manually, locked and clamped, and automatically clamped. The above clamping methods have some defects and disadvantages. Manual clamping and locked clamping are inefficient, and the clamping force of pneumatic automatic clamping is somewhat insufficient and unstable. When the air pressure is insufficient, the parts will be clamped unstably and loosely, and there will be jitter and displacement during processing.

[0003] According to patent No. CN202321362405.0, a high and low clamping fixture for aluminum alloy profiles includes a base plate; a pressure cylinder, which clamps the aluminum profile together with the base plate, and the pressure cylinder includes a first pressure cylinder and a second pressure cylinder fixed on the base plate; the pressure cylinder is vertically fixed with a swing arm through a central axis, and the swing arm has the freedom of lifting and lowering along the axis of the central axis, and also has the freedom of swinging around the axis of the central axis; an L-shaped pad is fixed on the base plate, and a flat gasket is fixed at the end of the swing arm of the first pressure cylinder, and the L-shaped pad has a concave angle clamping part that contacts the lower surface and side surface of the aluminum profile; when the first pressure cylinder clamps the aluminum profile, the lower surface of the flat gasket is in extrusion contact with the upper surface of the aluminum profile and the top of the L-shaped pad.

[0004] The above scheme still has certain technical defects in actual use. Since the base block is fixed to the bottom plate, it cannot be properly adjusted according to the span of the aluminum profile during use, making it difficult to clamp some aluminum profiles with larger or smaller widths, greatly reducing the applicability of the equipment. For this reason, we propose a staggered automatic clamping mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a staggered automatic clamping mechanism to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a staggered automatic clamping mechanism, comprising a base plate, a movable seat and a bidirectional screw, wherein a plurality of slide grooves are staggered on both sides of the top of the base plate, a movable seat is provided on the top of the slide groove, a cylinder clamp is fixedly installed on the top of the movable seat, a sliding block extending to the inside of the slide groove is provided at the bottom of the movable seat, a spring cylinder is movably provided on one side of the outer side of the base plate through a bearing, a telescopic column is provided on the outer limit sliding of the spring cylinder, a knob is provided on the outer end of the telescopic column, and one end of the spring cylinder extending to the inside of the base plate is fixedly connected with a bidirectional screw, both ends of the bidirectional screw are spirally connected with threaded blocks, the inner sleeve of the threaded block is provided with a threaded sleeve, the threaded sleeve is spirally connected to the bidirectional screw, and the two sides of the threaded block are fixedly connected to all the slide blocks on the same side of the base plate in sequence through a connecting plate.

[0007] Preferably, a positioning hole is provided on one side of the outer ring of the external bearing of the spring tube, and the positioning hole is provided around the spring tube. A positioning column is provided on one side of the outer end knob of the telescopic column, and the positioning column is arranged at a position corresponding to the positioning hole.

[0008] Preferably, a return spring is arranged inside the spring tube, and two ends of the return spring are fixedly connected to the inside of the spring tube and one end of the telescopic column respectively.

[0009] Preferably, the inner wall surfaces on both sides of the spring tube are provided with limiting grooves, and limiting blocks are arranged on both sides of one end of the telescopic column extending into the spring tube, and the limiting blocks extend into the limiting grooves and are slidably connected to the inner walls thereof.

[0010] Preferably, turntables are provided at both ends of the bottom plate, convex plates are provided on opposite sides of the two turntables, and the bottom plate is connected to the turntables via the convex plates.

[0011] Preferably, the cylinder clamp comprises a cylinder, an L-shaped pad and a clamping plate, and the cylinder is fixedly mounted on the top of the movable seat through the pad.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By opening mutually interpenetrating slide grooves on both sides of the top of the bottom plate, and arranging sliders inside them, the sliders on the same side of the bottom plate are connected to each other by connecting plates, and then the sliders are driven by threaded blocks, threaded sleeves and bidirectional screws, so as to achieve the purpose of adjusting the distance between the cylinder clamps on both sides of the top of the bottom plate, so as to adjust the position of the cylinder clamps according to the width of the aluminum profile, which greatly improves the practicability of the equipment.

[0014] 2. By arranging a spring cylinder, a telescopic column and a knob at the end of the bidirectional screw, the bidirectional screw is driven by the spring cylinder and the telescopic column that slide with each other in a limited manner and in cooperation with the knob, and the reset spring, the positioning column and the positioning hole are used to realize the function of positioning the adjusted knob, thereby indirectly positioning the bidirectional screw, thereby ensuring the stability of the cylinder clamp after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the bidirectional screw structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the spring tube of the utility model.

[0018] In the figure: 1. base plate; 2. turntable; 3. cylinder clamp; 4. moving seat; 5. slide groove; 6. slider; 7. connecting plate; 8. threaded block; 9. threaded sleeve; 10. bidirectional screw; 11. spring cylinder; 12. telescopic column; 13. knob; 14. limit groove; 15. limit block; 16. reset spring; 17. positioning column; 18. bearing; 19. positioning hole. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 The utility model provides a technical solution for a staggered automatic clamping mechanism: it includes a base plate 1, a movable seat 4 and a bidirectional screw 10, a plurality of slide grooves 5 are staggered on both sides of the top of the base plate 1, a movable seat 4 is arranged on the top of the slide groove 5, a cylinder clamp 3 is fixedly installed on the top of the movable seat 4, a slider 6 extending to the inside of the slide groove 5 is arranged at the bottom of the movable seat 4, a spring cylinder 11 is movably arranged on one side of the outer side of the base plate 1 through a bearing 18, a telescopic column 12 is arranged on the outer limit sliding of the spring cylinder 11, a knob 13 is arranged on the outer end of the telescopic column 12, and a bidirectional screw 10 is fixedly connected to one end of the spring cylinder 11 extending to the inside of the base plate 1, both ends of the bidirectional screw 10 are spirally connected with a threaded block 8, a threaded sleeve 9 is arranged inside the threaded block 8, and the threaded sleeve 9 is spirally connected to the bidirectional screw 10, and both sides of the threaded block 8 are fixedly connected with all the sliders 6 on the same side of the base plate 1 in sequence through a connecting plate 7.

[0021] Specifically, a positioning hole 19 is provided on one side of the outer ring of the external bearing 18 of the spring tube 11 , and the positioning hole 19 is provided around the spring tube 11 . A positioning column 17 is provided on one side of the outer end knob 13 of the telescopic column 12 , and the positioning column 17 is arranged at the position corresponding to the positioning hole 19 .

[0022] Specifically, a return spring 16 is disposed inside the spring tube 11 , and two ends of the return spring 16 are fixedly connected to the inside of the spring tube 11 and one end of the telescopic column 12 , respectively.

[0023] Specifically, the inner wall surfaces on both sides of the spring tube 11 are provided with limiting grooves 14, and limiting blocks 15 are arranged on both sides of one end of the telescopic column 12 extending into the spring tube 11. The limiting blocks 15 extend into the limiting grooves 14 and are slidably connected to the inner walls thereof.

[0024] Specifically, turntables 2 are provided at both ends of the bottom plate 1 , and convex plates are provided on opposite sides of the two turntables 2 , and the bottom plate 1 is connected to the turntables 2 via the convex plates.

[0025] Specifically, the cylinder clamp 3 includes a cylinder, an L-shaped pad and a clamping plate, and the cylinder is fixedly mounted on the top of the moving seat 4 through the pad.

[0026] In this embodiment, during use, when it is necessary to adjust the spacing between the cylinder clamps 3 on both sides of the base plate 1, the knob 13 can be pulled outward to disengage the positioning column 17 from the positioning hole 19, and then the knob 13 is turned. Since the telescopic column 12 is limitedly slidably connected with the spring barrel 11 through the limiting groove 14 and the limiting block 15, the knob 13 is used to cooperate with the telescopic column 12 to drive the spring barrel 11 to rotate, thereby realizing the driving of the bidirectional screw 10, so that the threaded blocks 8 at both ends are driven to move toward each other under the action of the threaded sleeve 9, and then cooperate with the connecting plate 7 drives all the moving seats 4 and the cylinder clamps 3 to move, thereby realizing the function of adjusting the distance between the cylinder clamps 3 on both sides of the top of the bottom plate 1, so as to appropriately adjust the cylinder clamps 3 according to the width of the aluminum profile, greatly improving the practicality of the equipment. When the adjustment is completed, the knob 13 is released, and under the action of the reset spring 16, the telescopic column 12 is pulled to contract, so that it can reset with the knob 13 and the positioning column 17, so that the positioning column 17 is inserted into the corresponding positioning hole 19 to realize the positioning function and ensure the stability of the cylinder clamp 3 after adjustment.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The staggered automatic clamping mechanism includes a base plate, a movable seat and a bidirectional screw, and is characterized by: The top of the bottom plate is provided with a plurality of slide grooves at different positions on both sides, a movable seat is provided on the top of the slide groove, a cylinder clamp is fixedly installed on the top of the movable seat, a sliding block extending to the inside of the slide groove is provided at the bottom of the movable seat, a spring cylinder is movably provided on one side of the outer side of the bottom plate through a bearing, a telescopic column is provided on the outer limit sliding of the spring cylinder, a knob is provided on the outer end of the telescopic column, and a bidirectional screw is fixedly connected to one end of the spring cylinder extending to the inside of the bottom plate, threaded blocks are spirally connected to both ends of the bidirectional screw, a threaded sleeve is provided inside the threaded block, and the threaded sleeve is spirally connected to the bidirectional screw, and both sides of the threaded block are fixedly connected to all the sliding blocks on the same side of the bottom plate in sequence through a connecting plate.

2. The staggered automatic clamping mechanism according to claim 1 is characterized in that: A positioning hole is provided on one side of the outer ring of the external bearing of the spring tube, and the positioning hole is provided around the spring tube. A positioning column is provided on one side of the outer end knob of the telescopic column, and the positioning column is arranged corresponding to the position of the positioning hole.

3. The staggered automatic clamping mechanism according to claim 1 is characterized in that: A return spring is arranged inside the spring tube, and two ends of the return spring are respectively fixedly connected to the inside of the spring tube and one end of the telescopic column.

4. The staggered automatic clamping mechanism according to claim 1 is characterized in that: Limiting grooves are provided on the inner wall surfaces on both sides of the spring barrel, and limiting blocks are arranged on both sides of one end of the telescopic column extending into the spring barrel. The limiting blocks extend into the limiting grooves and are slidably connected with the inner walls thereof.

5. The staggered automatic clamping mechanism according to claim 1 is characterized in that: Turntables are arranged at both ends of the bottom plate, and convex plates are arranged on opposite sides of the two turntables, and the bottom plate is connected with the turntables through the convex plates.

6. The staggered automatic clamping mechanism according to claim 1 is characterized in that: The cylinder clamp comprises a cylinder, an L-shaped cushion block and a clamping plate, and the cylinder is fixedly mounted on the top of the moving seat through the cushion plate.

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