Functional clamp with self-positioning and clamping functions

Abstract

The utility model discloses a self-positioning clamping functional clamp which comprises a bottom plate, a trackless air cylinder is fixedly connected to the surface of the upper end of the bottom plate, a second pneumatic connector is fixedly connected to the surface of one side of the bottom plate, a flow limiting valve is fixedly installed on the surface of one side of the bottom plate, a clamping mechanism is arranged at the upper end of the trackless air cylinder, and a second pneumatic connector is fixedly connected to the surface of the other side of the bottom plate. The clamping mechanism achieves positioning and clamping through positioning of an adsorption plate and clamping of a clamping plate driven by a trackless air cylinder. According to the functional clamp with the self-positioning and clamping functions, the clamping mechanism facilitates quick positioning and clamping of a workpiece to be machined, air in an adsorption plate is evacuated under the action of an air pump, and the surface of the lower end of the workpiece to be machined is adsorbed through a tiny hole in the upper end, so that preliminary positioning of the workpiece to be machined is completed, and the workpiece to be machined is automatically clamped while preliminary positioning is completed. According to the positioning mechanism, the to-be-machined workpiece is conveniently and rapidly positioned and clamped, and positioning and machining are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a functional clamp with self-positioning and clamping. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] In the use of traditional clamps, positioning blocks or positioning nuts are generally used to position the workpiece to be processed. After the positioning is completed, the workpiece to be processed is fixed by tightening the clamp before processing can be carried out. This is relatively inefficient and the steps are relatively complicated. Utility Model Content

[0004] The purpose of the utility model is to provide a functional clamp with self-positioning and clamping function, so as to solve the problem of low positioning and clamping efficiency proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions, including: a base plate, the upper end surface of the base plate is fixedly connected to a trackless cylinder, one side surface of the base plate is fixedly connected to a pneumatic joint 2, a flow limiting valve is fixedly installed on one side surface of the base plate, and a clamping mechanism is provided at the upper end of the trackless cylinder, and the clamping mechanism realizes positioning and clamping by positioning the adsorption plate and the trackless cylinder driving the clamping plate to clamp.

[0006] Preferably, the clamping mechanism includes: a base is fixedly connected to the upper end surface of the sliding assembly of the trackless cylinder, a connecting rod is fixedly connected to the upper end surface of the base, a clamp is fixedly connected between two connecting rods, a pneumatic joint is fixedly connected to the upper end surface of the clamp, an air outlet is fixedly connected to the lower end of the clamp, and an adsorption plate is fixedly connected to the upper end surface of the base plate.

[0007] By adopting the above technical solution, the clamping mechanism facilitates the rapid positioning and clamping of the workpiece to be processed. When the initial positioning is completed, the clamping plate clamps the workpiece to be processed, thereby completing the positioning.

[0008] Preferably, a control mechanism is provided on one side of the flow limiting valve, wherein the control mechanism includes: an intake pipe is fixedly connected to one side surface of the flow limiting valve, a drainage pipe is fixedly connected to one side surface of the intake pipe, a deceleration block is fixedly connected to the inner wall surface of the drainage pipe, a conduit is fixedly connected to the upper end surface of the drainage pipe, a movable cavity is fixedly connected to one side surface of the conduit, a piston is slidably connected to the inner wall surface of the movable cavity, a tension spring is connected to the upper end surface of the piston and the lower end surface of the piston, a gear is meshingly connected to one side of the gear, and a control switch is fixedly connected to the center of the gear.

[0009] By adopting the above technical solution, the control mechanism ensures that the position of the workpiece to be processed does not change, and the control mechanism controls the clamping force by controlling the opening and closing of the flow limiting valve.

[0010] Preferably, one end of the pneumatic connector 2 is arranged to penetrate the surface of the bottom plate, and one end of the pneumatic connector 2 is connected to the surface of the adsorption plate.

[0011] The above technical solution is adopted to facilitate the completion of preliminary positioning.

[0012] Preferably, one end of the pneumatic connector is arranged through the upper end surface of the clamp plate, and one end of the pneumatic connector is fixedly connected to the upper end surface of the air outlet, the outlet of the air outlet is arranged at an angle, and the outlet of the air outlet is arranged opposite to the upper end surface of the bottom plate, and the upper end surface of the adsorption plate is provided with tiny holes.

[0013] By adopting the above technical solution, the high-speed gas discharged from the gas outlet removes the residues falling on the surface of the adsorption plate.

[0014] Preferably, one end of the drainage tube is arranged through one side surface of the intake pipe, and the surface of the drainage tube is provided with holes, the surface of the deceleration block is provided with a gap, one end of the conduit is arranged through the inner wall of the movable cavity, and the control switch is rotatably arranged on one side surface of the flow limiting valve.

[0015] By adopting the above technical solution, the control mechanism reduces the flow rate of the gas entering the drainage tube through the deceleration block. After the gas enters the movable cavity, the piston can slowly descend, thereby ensuring that the rack can slowly drive the gear to rotate, thereby driving the control switch to rotate slowly.

[0016] Preferably, a protective shell is fixedly connected to one side surface of the flow limiting valve, the gear and the rack are both arranged in the protective shell of the flow limiting valve, and holes are provided at the upper and lower ends of the protective shell of the flow limiting valve.

[0017] The above technical solution is adopted to provide a structural basis for the control mechanism.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the functional clamp for self-positioning clamping:

[0019] 1. The clamping mechanism facilitates the rapid positioning and clamping of the workpiece to be processed. Under the action of the air pump, the air in the adsorption plate is evacuated, and the lower end surface of the workpiece to be processed is adsorbed through the tiny holes at the upper end, thereby completing the preliminary positioning of the workpiece to be processed. When the preliminary positioning is completed, the clamping plate clamps the workpiece to be processed to complete the positioning. The high-speed gas discharged from the air outlet removes the residue falling on the surface of the adsorption plate to prevent the residue from clogging the tiny holes of the adsorption plate. This mechanism facilitates the rapid positioning and clamping of the workpiece to be processed, facilitates positioning and processing, and improves efficiency compared to the traditional positioning followed by processing.

[0020] 2. The control mechanism ensures that the position of the workpiece to be processed will not change. During the movement of the clamping plate driven by the trackless cylinder, the clamping plates on both sides cannot reach the surface of the workpiece to be processed at the same time, which will cause the position of the workpiece to be processed to change. The control mechanism reduces the flow rate of the gas entering the drainage pipe through the deceleration block, so that the piston can slowly descend, thereby ensuring that the opening and closing degree of the flow limiting valve is from small to large. When the clamping plate initially reaches the surface of the workpiece to be processed, the position of the workpiece to be processed will not change. When the clamping plates on both sides of the workpiece to be processed touch the surface of the workpiece to be processed at the same time, the opening and closing degree of the flow limiting valve reaches the maximum, so that the clamping plate tightens the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the bottom plate and the adsorption plate connected to the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the bottom plate and the pneumatic joint of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the splint and the air outlet of the utility model;

[0024] Figure 4 This is a schematic diagram of a three-dimensional cross-sectional structure of the connection between the rack and the gear of the utility model;

[0025] Figure 5 This is a schematic diagram of a three-dimensional cross-sectional structure of the connection between the drainage tube and the deceleration block of the utility model;

[0026] Figure 6 For this utility model Figure 4 A schematic diagram of the enlarged structure at point A;

[0027] Figure 7 For this utility model Figure 5 Schematic diagram of the enlarged structure at B.

[0028] In the figure: 1. bottom plate; 2. trackless cylinder; 3. base; 4. connecting rod; 5. clamping plate; 6. pneumatic joint 1; 7. air outlet; 8. air inlet pipe; 9. flow limiting valve; 10. drainage pipe; 11. conduit; 12. movable cavity; 13. piston; 14. tension spring; 15. rack; 16. gear; 17. control switch; 18. pneumatic joint 2; 19. adsorption plate; 20. deceleration block. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-7The utility model provides a technical solution: a functional clamp for self-positioning and clamping, comprising: a base plate 1, a trackless cylinder 2 is fixedly connected to the upper end surface of the base plate 1, a pneumatic joint 18 is fixedly connected to one side surface of the base plate 1, a flow limiting valve 9 is fixedly installed on one side surface of the base plate 1, a clamping mechanism is provided on the upper end of the trackless cylinder 2, and the clamping mechanism realizes positioning and clamping by positioning the adsorption plate 19 and driving the clamping plate 5 to clamp the trackless cylinder 2, wherein the clamping mechanism comprises: a base 3 is fixedly connected to the upper end surface of the sliding component of the trackless cylinder 2, a connecting rod 4 is fixedly connected to the upper end surface of the base 3, a clamping plate 5 is fixedly connected between the two connecting rods 4, a pneumatic joint 6 is fixedly connected to the upper end surface of the clamping plate 5, an air outlet 7 is fixedly connected to the lower end of the clamping plate 5, an adsorption plate 19 is fixedly connected to the upper end surface of the base plate 1, one end of the pneumatic joint 18 penetrates the surface of the base plate 1, and one end of the pneumatic joint 18 is connected to the surface of the adsorption plate 19, and one end of the pneumatic joint 6 The upper end surface of the plywood 5 is set, and one end of the pneumatic connector 1 6 is fixedly connected to the upper end surface of the air outlet 7. The outlet of the air outlet 7 is set at an angle, and the outlet of the air outlet 7 is set directly on the upper end surface of the bottom plate 1. The upper end surface of the adsorption plate 19 is provided with tiny holes. Before processing, the air pipe of the air pump is connected to the pneumatic connector 2 18, the pneumatic connector 1 6 and the air inlet pipe 8, and the workpiece to be processed is placed on the upper end surface of the adsorption plate 19. Under the action of the air pump, the air in the adsorption plate 19 It is evacuated, and the lower end surface of the workpiece to be processed is adsorbed through the tiny holes at the upper end, thereby completing the preliminary positioning of the workpiece to be processed. When the preliminary positioning is completed, under the pressurized action of the air pump, the trackless cylinder 2 drives the base 3 and the connecting rod 4 to move, and the clamping plate 5 fixedly connected to one side of the connecting rod 4 clamps the workpiece to be processed, thereby completing the positioning. During the processing, the high-speed gas discharged from the air outlet 7 removes the residue falling on the surface of the adsorption plate 19 to prevent the residue from clogging the tiny holes of the adsorption plate 19.

[0031] A control mechanism is provided on one side of the flow limiting valve 9, wherein the control mechanism comprises: an intake pipe 8 is fixedly connected to one side surface of the flow limiting valve 9, a drainage pipe 10 is fixedly connected to one side surface of the intake pipe 8, a deceleration block 20 is fixedly connected to the inner wall surface of the drainage pipe 10, a guide tube 11 is fixedly connected to the upper end surface of the drainage pipe 10, a movable cavity 12 is fixedly connected to one side surface of the guide tube 11, a piston 13 is slidably connected to the inner wall surface of the movable cavity 12, a tension spring 14 is connected to the upper end surface of the piston 13 and the upper inner wall surface of the movable cavity 12, and a deceleration block 20 is fixedly connected to the inner wall surface of the drainage pipe 10 ... A rack 15 is connected, one side of the rack 15 is meshed with a gear 16, a control switch 17 is fixedly connected to the center of the gear 16, one end of the drainage pipe 10 is set through the surface of one side of the intake pipe 8, and the surface of the drainage pipe 10 is provided with a hole, the surface of the deceleration block 20 is provided with a gap, one end of the conduit 11 is set through the inner wall of the active cavity 12, the control switch 17 is rotatably set on the surface of one side of the flow limiting valve 9, and the surface of the flow limiting valve 9 is fixedly connected with a protective shell, the gear 16 and the rack 15 are both set in the protective shell of the flow limiting valve 9, and the protective shell of the flow limiting valve 9 Holes are provided at the upper and lower ends. When the workpiece to be processed is placed on the surface of the adsorption plate 19, after the adsorption plate 19 adsorbs the workpiece to be processed, the clamping plates 5 on both sides cannot reach the surface of the workpiece to be processed at the same time during the movement of the clamping plates 5 driven by the trackless cylinder 2. Since the clamping force of the clamping plates 5 is greater than the adsorption force of the adsorption plate 19, the position of the workpiece to be processed will change. The control mechanism reduces the flow rate of the gas entering the drainage tube 10 through the deceleration block 20. The gas in the drainage tube 10 enters the active cavity 12 through the conduit 11. After the gas enters the active cavity 12, the piston 1 3 is slowly lowered, thereby ensuring that the rack 15 can slowly drive the gear 16 to rotate, thereby driving the control switch 17 to rotate slowly, thereby ensuring that the opening and closing degree of the flow limiting valve 9 is from small to large. When the clamping plate 5 initially reaches the surface of the workpiece to be processed, the position of the workpiece to be processed will not be changed. When the clamping plates 5 on both sides of the workpiece to be processed touch the surface of the workpiece to be processed at the same time, the opening and closing degree of the flow limiting valve 9 reaches the maximum, so that the clamping plate 5 tightens the workpiece to be processed. After turning off the air pump, the tension spring 14 restores the piston 13 to its original position, and at the same time restores the opening and closing degree of the flow limiting valve 9, which is convenient for continued use next time.

[0032] 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. A functional clamp for self-positioning and clamping, comprising: A base plate (1) is provided, wherein the upper end surface of the base plate (1) is fixedly connected to a trackless cylinder (2), a side surface of the base plate (1) is fixedly connected to a pneumatic joint 2 (18), and a flow limiting valve (9) is fixedly installed on one side surface of the base plate (1), characterized in that: a clamping mechanism is provided at the upper end of the trackless cylinder (2), and the clamping mechanism realizes positioning and clamping by positioning an adsorption plate (19) and the trackless cylinder (2) to drive a clamping plate (5) to clamp.

2. A self-positioning and clamping functional fixture according to claim 1, characterized in that: The clamping mechanism comprises: the upper end surface of the sliding component of the trackless cylinder (2) is fixedly connected to a base (3), the upper end surface of the base (3) is fixedly connected to a connecting rod (4), a clamping plate (5) is fixedly connected between two connecting rods (4), the upper end surface of the clamping plate (5) is fixedly connected to a pneumatic joint (6), the lower end of the clamping plate (5) is fixedly connected to an air outlet (7), and the upper end surface of the bottom plate (1) is fixedly connected to an adsorption plate (19).

3. A self-positioning and clamping functional fixture according to claim 1, characterized in that: A control mechanism is provided on one side of the flow limiting valve (9), wherein the control mechanism comprises: an intake pipe (8) is fixedly connected to one side surface of the flow limiting valve (9), a drainage pipe (10) is fixedly connected to one side surface of the intake pipe (8), a deceleration block (20) is fixedly connected to the inner wall surface of the drainage pipe (10), a conduit (11) is fixedly connected to the upper end surface of the drainage pipe (10), a movable cavity (12) is fixedly connected to one side surface of the conduit (11), a piston (13) is slidably connected to the inner wall surface of the movable cavity (12), a tension spring (14) is connected between the upper end surface of the piston (13) and the upper inner wall surface of the movable cavity (12), a rack (15) is fixedly connected to the lower end surface of the piston (13), a gear (16) is meshedly connected to one side of the rack (15), and a control switch (17) is fixedly connected to the center of the gear (16).

4. A self-positioning and clamping functional fixture according to claim 1, characterized in that: One end of the second pneumatic connector (18) is arranged to penetrate the surface of the bottom plate (1), and one end of the second pneumatic connector (18) is connected to the surface of the adsorption plate (19).

5. A self-positioning and clamping functional fixture according to claim 2, characterized in that: One end of the pneumatic connector (6) is arranged to penetrate the upper end surface of the clamping plate (5), and one end of the pneumatic connector (6) is fixedly connected to the upper end surface of the air outlet (7). The outlet of the air outlet (7) is arranged to be inclined, and the outlet of the air outlet (7) is arranged to face the upper end surface of the bottom plate (1). The upper end surface of the adsorption plate (19) is provided with tiny holes.

6. A self-positioning and clamping functional fixture according to claim 3, characterized in that: One end of the drainage pipe (10) is arranged to penetrate the surface of one side of the intake pipe (8), and a hole is provided on the surface of the drainage pipe (10), a gap is provided on the surface of the deceleration block (20), one end of the guide tube (11) is arranged to penetrate the inner wall of the movable cavity (12), and the control switch (17) is rotatably arranged on the surface of one side of the flow limiting valve (9).

7. A self-positioning and clamping functional fixture according to claim 3, characterized in that: A protective shell is fixedly connected to a surface of one side of the flow limiting valve (9); the gear (16) and the rack (15) are both arranged in the protective shell of the flow limiting valve (9); and holes are provided at the upper and lower ends of the protective shell of the flow limiting valve (9).

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