Grabbing clamp for tee joint

Abstract

The three-way grabbing clamp comprises a grabbing top beam, two first sliding blocks are oppositely arranged on the grabbing top beam through first lead screw threads, a transverse moving supporting plate is arranged on the lower sides of the first sliding blocks, two second sliding blocks are oppositely arranged on the lower side of the transverse moving supporting plate through second lead screw threads, and first clamps are arranged on the lower sides of the two second sliding blocks. By means of the two first clamps arranged on the lower sides of the two ends of the transverse moving supporting plate, the two ends of a workpiece can be clamped and fixed, meanwhile, through the second clamp arranged on the lower middle portion of the transverse moving supporting plate, the two ends of the workpiece can be clamped and fixed, and the workpiece can be clamped and fixed. The middle part of a workpiece can be clamped and fixed, so that the stability of clamping and using the workpiece is improved; two workpieces can be clamped and fixed at the same time through the two sets of transverse moving supporting plates, the two transverse moving supporting plates are driven by the arranged first lead screw to move and adjust in the opposite directions, the distance between the two sets of clamps is adjusted, and the use flexibility of clamping the workpieces is improved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece clamps, in particular to a three-way grabbing clamp. Background Art

[0002] A fixture is a device used to fix the workpiece 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. The workpiece needs to be picked up and placed during the processing.

[0003] The prior art discloses a clamp for clamping a tee with application number 202311766016.9. When clamping a part, the U-shaped clamping limit block can firmly clamp the part by rotating the handle. When clamping, the plastic pad can well protect the part from collision during processing and prevent it from being damaged. The plastic pad and the U-shaped clamping limit block are used in combination to prevent the reducing tee part from slipping when clamping. However, the workpiece is clamped and fixed at a single point, resulting in a generally poor stability in the clamping of the workpiece. Summary of the invention

[0004] The purpose of the present invention is to provide a three-way grasping fixture to solve the problem that the workpiece is clamped and fixed at a single point in the prior art, resulting in relatively poor stability of the workpiece clamping and fixing.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a three-way grabbing clamp, comprising a grabbing top beam, wherein two first sliding blocks are provided opposite to each other inside the grabbing top beam through a first lead screw thread, and a transverse support plate is provided on the lower side of the first sliding block, and two second sliding blocks are provided opposite to each other on the lower side of the transverse support plate through a second lead screw thread, and a first clamp is provided on the lower side of the two second sliding blocks, a torsion motor is provided in the middle part of the lower side of the transverse support plate, and a second clamp is provided at the lower end of the torsion motor through a connecting seat, which can clamp and fix the middle part of the workpiece, thereby improving the stability of workpiece clamping, and the two transverse support plates are driven to move towards each other by the first lead screw, thereby adjusting the spacing between the two sets of clamps, thereby improving the flexibility of clamping the workpiece.

[0006] Furthermore, the first screw includes a first screw rod rotatably arranged in a sliding groove at the lower side of the grabbing top beam, and two opposite external threads are arranged on the outer sides of both ends of the first screw rod, and one end of the first screw rod is transmission-connected to a first motor.

[0007] Furthermore, the second screw includes a second screw rod rotatably arranged in the sliding groove on the lower side of the transverse support plate, and two opposite external threads are provided on the outer sides of both ends of the second screw rod. One end of the second screw rod is transmission-connected to a second motor, so that the second screw rod is used to drive the two second sliding blocks to move toward each other and adjust, so as to adjust the use distance between the two clamps, thereby meeting the clamping processing of workpieces of different lengths.

[0008] Furthermore, the first clamp and the second clamp both include a clamping claw rotatably arranged on the lower side of the clamp seat through a connecting shaft, an electric push rod is provided on the top of the clamp seat, and the lower end of the electric push rod is transmission-connected to the connecting shaft through a gear rack set.

[0009] Furthermore, the gear rack group includes an active rack arranged at the lower end of the electric push rod, and a driven gear meshing with the active rack is provided on the outer side of the connecting shaft, so that the two clamping jaws are driven to open and close and adjust through the electric push rod and the gear rack group, thereby facilitating the clamping of workpieces. The clamping transmission has high stability and is convenient and quick to operate.

[0010] Furthermore, an anti-slip clamping end surface is provided on the inner side of the clamping jaw, and an anti-slip mechanism is provided on the inner wall of the lower end of the clamping jaw.

[0011] Furthermore, the anti-slip mechanism is arranged on a cylinder on the inner wall of the lower side of the clamp, and a limit anti-slip rod is provided at one end of the cylinder. When the clamp clamps the workpiece, the limit anti-slip rod is extended by driving the cylinder to limit the lower side of the workpiece, thereby further improving the stability of the workpiece clamping and fixing.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention can clamp and fix the two ends of the workpiece by utilizing the two first clamps provided on the lower sides of the two ends of the transverse support plate, and at the same time, can clamp and fix the middle part of the workpiece by utilizing the second clamp provided on the lower middle part of the transverse support plate, thereby improving the stability of the workpiece clamping.

[0014] 2. The present invention utilizes two sets of transverse support plates to clamp and fix two workpieces at the same time, and the two transverse support plates are driven to move toward each other through the first screw, so that the distance between the two sets of clamps can be adjusted, thereby improving the flexibility of clamping the workpieces.

[0015] 3. The present invention provides an anti-slip mechanism on the inner wall of the lower end of the clamping jaw. The anti-slip mechanism is arranged on a cylinder on the inner wall of the lower side of the clamping jaw. A limit anti-slip rod is arranged at one end of the cylinder. When the clamping jaw clamps the workpiece, the limit anti-slip rod is extended by driving the cylinder to limit the lower side of the workpiece, thereby further improving the stability of the workpiece clamping and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a left view of the overall structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the internal structure of the first clamp of the present invention.

[0020] In the figure: 1. Grab the top beam; 2. The first lead screw; 3. The first slider; 4. The transverse support plate; 5. The second slider; 6. The first clamp; 7. The second lead screw; 8. The clamp; 9. The torsion motor; 10. The connecting seat; 11. The second clamp; 12. The electric push rod; 13. The connecting shaft; 14. The driven gear; 15. The driving rack; 16. The anti-slip clamping end face; 17. The cylinder; 18. The limit anti-drop rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 , Figure 2 , Figure 3 In the embodiment of the present invention, a three-way grabbing fixture comprises a grabbing top beam 1, and two first sliding blocks 3 are arranged opposite to each other inside the grabbing top beam 1 through a first screw 2 threadedly, the first screw 2 comprises a first screw rod rotatably arranged in a sliding groove on the lower side of the grabbing top beam 1, and two opposite external threads are arranged on the outer sides of the two ends of the first screw rod, one end of the first screw rod is transmission-connected to a first motor, and a transverse support plate 4 is arranged on the lower side of the first sliding block 3, and two second sliding blocks 5 are arranged opposite to each other on the lower side of the transverse support plate 4 through a second screw 7 threadedly, and a first clamp 6 is arranged on the lower side of the two second sliding blocks 5, which can clamp and fix the two ends of the workpiece, a torsion motor 9 is arranged in the middle part of the lower side of the transverse support plate 4, and a second clamp 11 is arranged at the lower end of the torsion motor 9 through a connecting seat 10, which can clamp and fix the middle of the workpiece, thereby improving the stability of workpiece clamping, and the two transverse support plates 4 are driven to move towards each other by the first screw 2, so that the spacing between the two sets of clamps can be adjusted, thereby improving the flexibility of clamping the workpiece.

[0023] like Figure 1 and Figure 2 As shown, in order to meet the needs of clamping workpieces of different lengths, the second screw 7 also includes a second screw rod rotatably arranged in the sliding groove on the lower side of the transverse support plate 4, and two opposite external threads are provided on the outer sides of both ends of the second screw rod. One end of the second screw rod is transmission-connected to a second motor, so that the second screw rod 7 is used to drive the two second sliders 5 to move toward each other for adjustment, thereby adjusting the use distance between the two clamps, thereby meeting the needs of clamping workpieces of different lengths.

[0024] like Figure 1 and Figure 3 As shown, in order to improve the stability of the clamping transmission, the first clamp 6 and the second clamp 11 both include a clamping claw 8 rotatably arranged on the lower side of the clamping seat through a connecting shaft 13, an electric push rod 12 is provided on the top of the clamping seat, and the lower end of the electric push rod 12 is transmission connected to the connecting shaft 13 through a gear rack set, the gear rack set includes an active rack 15 arranged at the lower end of the electric push rod 12, and a driven gear 14 meshing with the active rack 15 is provided on the outer side of the connecting shaft 13, so that the two clamping claws 8 are driven to open and close by the electric push rod 12 and the gear rack set, so as to facilitate clamping of the workpiece, the stability of the clamping transmission is high, and the operation is convenient and quick.

[0025] like Figure 2 and Figure 3 As shown, in order to further improve the stability of workpiece clamping and fixing, an anti-slip clamping end face 16 is provided on the inner side of the clamping jaw 8, and an anti-slip mechanism is provided on the inner wall of the lower end of the clamping jaw 8. The anti-slip mechanism is arranged on a cylinder 17 on the inner wall of the lower side of the clamping jaw 8. A limiting anti-slip rod 18 is provided at one end of the cylinder 17. When the clamping jaw 8 clamps the workpiece, the limiting anti-slip rod 18 is extended by driving the cylinder 17 to limit the lower side of the workpiece, thereby further improving the stability of workpiece clamping and fixing.

[0026] The working principle and use process of the present invention are as follows: when in use, the two first clamps 6 provided on the lower sides of the two ends of the transverse support plate 4 can be used to clamp and fix the two ends of the workpiece, and at the same time, the second clamp 11 provided on the lower middle part of the transverse support plate 4 can be used to clamp and fix the middle part of the workpiece, thereby improving the stability of workpiece clamping, and two groups of transverse support plates 4 can be used to clamp and fix two workpieces at the same time, and the two transverse support plates 4 can be driven to move toward each other by the provided first lead screw 2, thereby adjusting the distance between the two groups of clamps, thereby improving the flexibility of clamping the workpiece.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-way grabbing fixture, comprising a grabbing top beam (1), characterized in that: Two first sliders (3) are arranged facing each other inside the grabbing top beam (1) through the first screw (2) thread, and a transverse support plate (4) is arranged at the lower side of the first slider (3); two second sliders (5) are arranged facing each other at the lower side of the transverse support plate (4) through the second screw (7) thread, and a first clamp (6) is arranged at the lower side of the two second sliders (5); a torsion motor (9) is arranged at the middle part of the lower side of the transverse support plate (4), and a second clamp (11) is arranged at the lower end of the torsion motor (9) through a connecting seat (10).

2. A three-way grabbing fixture according to claim 1, characterized in that: The first screw (2) comprises a first screw which is rotatably arranged in a sliding groove at the lower side of the grabbing top beam (1), and two opposite external threads are arranged on the outer sides of both ends of the first screw, and one end of the first screw is transmission-connected to a first motor.

3. A three-way grabbing fixture according to claim 1, characterized in that: The second screw (7) comprises a second screw rod rotatably arranged in a sliding groove at the lower side of the transverse support plate (4), and two opposite external threads are arranged on the outer sides of both ends of the second screw rod, and one end of the second screw rod is transmission-connected to a second motor.

4. The three-way grabbing fixture according to claim 1, characterized in that: The first clamp (6) and the second clamp (11) both comprise a clamping claw (8) rotatably arranged on the lower side of a clamping seat via a connecting shaft (13); an electric push rod (12) is arranged on the top of the clamping seat, and the lower end of the electric push rod (12) is transmission-connected to the connecting shaft (13) via a gear rack set.

5. A three-way grabbing fixture according to claim 4, characterized in that: The gear rack assembly comprises an active gear rack (15) arranged at the lower end of the electric push rod (12), and a driven gear (14) meshing with the active gear rack (15) is arranged on the outer side of the connecting shaft (13).

6. A three-way grabbing fixture according to claim 4, characterized in that: The inner side of the clamping jaw (8) is provided with an anti-slip clamping end surface (16), and the inner wall of the lower end of the clamping jaw (8) is provided with an anti-slip mechanism.

7. A three-way grabbing fixture according to claim 6, characterized in that: The anti-slip mechanism is arranged on a cylinder (17) on the inner wall of the lower side of the clamping jaw (8), and a position limiting anti-slip rod (18) is arranged at one end of the cylinder (17).

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