Automatic floating adjusting device for tightening clamp

Abstract

The utility model discloses an automatic floating adjusting device of a tightening clamp. The automatic floating adjusting device comprises a flange welding assembly and an automatic floating assembly. The automatic floating assembly comprises a first direction sliding set, a second direction sliding set, a sliding rail fixing plate and a tightening gun fixing plate. The first direction sliding set is in sliding connection with the flange welding piece and the sliding rail fixing plate. The second direction sliding set is in sliding connection with the sliding rail fixing plate and the tightening gun fixing plate. The projection of the moving direction of the first-direction sliding group on the horizontal plane where the moving direction of the second-direction sliding group is located intersects with the moving direction of the second-direction sliding group. According to the utility model, the automatic floating assembly is fixed at the lower part of the flange welding assembly, and then the automatic floating assembly is arranged above the tightening gun fixing plate; therefore, displacement floating of the tightening gun in two directions can be achieved, position deviation occurring in the tightening work is compensated, and the requirement for alignment matching precision is lowered.

Description

Technical Field

[0001] The utility model relates to an automatic floating adjustment device for a tightening fixture, belonging to the technical field of robot automation. Background Art

[0002] In the manufacturing industry of automation equipment, the tightening of workpieces is often achieved through fixtures, which requires a high matching accuracy between the fixture and the workpiece to perfectly insert bolts into bolt holes. However, on the one hand, over-positioning or under-positioning may occur during the incoming process of workpieces, and on the other hand, deviations may occur in the actions of the fixture or manipulator, resulting in insufficient alignment accuracy of the fixture, unsatisfactory matching degree, and even collisions between the fixture and the workpiece. In severe cases, workpiece damage and fixture structure damage may also occur, so position correction is required. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an automatic floating adjustment device for a tightening fixture.

[0004] To solve the above technical problem, the utility model provides an automatic floating adjustment device for a tightening fixture, including a flange welding assembly and an automatic floating assembly;

[0005] The automatic floating assembly includes a first-direction sliding group, a second-direction sliding group, a slide rail fixing plate, and a tightening gun fixing plate; the first-direction sliding group is slidably connected to the flange welding assembly and the slide rail fixing plate respectively; the second-direction sliding group is slidably connected to the slide rail fixing plate and the tightening gun fixing plate respectively; the projection of the moving direction of the first-direction sliding group on the horizontal plane where the moving direction of the second-direction sliding group is located intersects with the moving direction of the second-direction sliding group.

[0006] Further, the first-direction sliding group includes two groups of first slide rail sliders, and these two groups of first slide rail sliders are respectively installed on the flange welding assembly and the slide rail fixing plate along the same direction.

[0007] Further, the second-direction sliding group includes two groups of second slide rail sliders, and these two groups of second slide rail sliders are respectively installed on the slide rail fixing plate and the tightening gun fixing plate.

[0008] Further, the projection of the moving direction of the first-direction sliding group on the horizontal plane where the moving direction of the second-direction sliding group is located intersects with the moving direction of the second-direction sliding group at 90 degrees.

[0009] Further, the first-direction sliding group and the second-direction sliding group adopt sliders.

[0010] Further, it also includes a floating positioning assembly fixedly connected to the flange welding assembly;

[0011] The tightening gun fixing plate is provided with a locking limit seat;

[0012] The floating positioning component is inserted into or pulled out of the locking limit seat through a telescopic structure, and is used to lock or unlock the first-direction sliding group and the second-direction sliding group.

[0013] Furthermore, the floating positioning component includes a cylinder body, a cylinder mounting seat and a floating positioning lock pin;

[0014] The cylinder mounting seat is fixedly connected to the cylinder body and the flange welding component respectively, and the floating positioning lock pin is connected to the telescopic member of the cylinder body.

[0015] Furthermore, the vertical cross-section of the end of the floating positioning lock pin is an inclined surface with a smaller lower part and a larger upper part.

[0016] Furthermore, the floating positioning component further includes a cylinder joint, and the cylinder joint is used to connect the cylinder output shaft and the floating positioning lock pin.

[0017] Furthermore, the locking limit seat is arranged in the middle of the tightening gun fixing plate.

[0018] The beneficial effects achieved by the present utility model:

[0019] By fixing the automatic floating component at the lower part of the flange welding component and then installing the automatic floating component above the tightening gun fixing plate, the tightening gun can be enabled to achieve displacement floating in two directions of X and Y. During the tightening operation, there is usually a certain deviation between the tightening gun and the bolt hole. The floating component can enable the tightening gun to adaptively adjust the deviation according to the position of the bolt hole, realize displacement compensation, reduce the requirement for the alignment and matching precision of the shaft and hole, and improve the success rate and stability of the hole-shaft matching;

[0020] By adding a floating positioning component in the flange welding component and cooperating with the locking limit seat of the automatic floating component, the floating function can be turned on and off, so as to control the fixing and sliding of the first-direction sliding group and the second-direction sliding group of the automatic floating component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the automatic floating component of Embodiment 1 of the present utility model;

[0023] Figure 3 is the overall structural schematic diagram of Embodiment 2 of the present utility model;

[0024] Figure 4It is the front view of the overall structure of Embodiment 2 of the present utility model;

[0025] Figure 5 It is the side view of the overall structure of Embodiment 2 of the present utility model;

[0026] Figure 6 It is the schematic structural view of the floating positioning assembly of Embodiment 2 of the present utility model;

[0027] Figure 7 It is the sectional view of the floating positioning assembly of Embodiment 2 of the present utility model;

[0028] Figure 8 It is the schematic structural view of the automatic floating device of Embodiment 2 of the present utility model;

[0029] Figure 9 It is the schematic structural view of the flange welding assembly of Embodiments 1 and 2 of the present utility model. Detailed implementation manners

[0030] The present utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0033] Example 1, as Figures 1 - 2 shown, this example discloses an automatic floating adjustment device for a tightening fixture, including a flange welding assembly 1 and an automatic floating assembly 3;

[0034] The automatic floating assembly 3 includes a first-direction sliding group 31, a second-direction sliding group 32, a slide rail fixing plate 33, and a tightening gun fixing plate 34; the first-direction sliding group 31 is respectively slidably connected to the flange welding assembly 1 and the slide rail fixing plate 33; the second-direction sliding group 32 is respectively slidably connected to the slide rail fixing plate 33 and the tightening gun fixing plate 34; the projection of the moving direction of the first-direction sliding group 31 on the horizontal plane where the moving direction of the second-direction sliding group 32 is located intersects with the moving direction of the second-direction sliding group 32.

[0035] The first-direction sliding group 31 includes two sets of first slide rail sliders, and these two sets of first slide rail sliders are respectively installed on the flange welding assembly 1 and the slide rail fixing plate 33 along the same direction.

[0036] The second-direction sliding group 32 includes two sets of second slide rail sliders, and these two sets of second slide rail sliders are respectively installed on the slide rail fixing plate 33 and the tightening gun fixing plate 34.

[0037] The projection of the moving direction of the first-direction sliding group 31 on the horizontal plane where the moving direction of the second-direction sliding group 32 is located intersects with the moving direction of the second-direction sliding group 32 at 90 degrees, which can maximize the displacement deviation compensation in the plane.

[0038] The first-direction sliding group 31 and the second-direction sliding group 32 are sliders, which respectively cooperate with the corresponding slide rails to achieve sliding connection.

[0039] Example 2, this example discloses a positioning component of a floating device for a tightening fixture, as Figures 3 - 5 shown, including:

[0040] A flange welding assembly 1, which is respectively connected with a floating positioning component 2 and an automatic floating device 3;

[0041] As Figure 8 shown, the automatic floating assembly 3 includes a first-direction sliding group 31, a second-direction sliding group 32, a slide rail fixing plate 33, and a tightening gun fixing plate 34; the first-direction sliding group 31 is respectively slidably connected to the flange welding assembly 1 and the slide rail fixing plate 33; the second-direction sliding group 32 is respectively slidably connected to the slide rail fixing plate 33 and the tightening gun fixing plate 34; the projection of the moving direction of the first-direction sliding group 31 on the horizontal plane where the moving direction of the second-direction sliding group 32 is located intersects with the moving direction of the second-direction sliding group 32; the tightening gun fixing plate 34 is provided with a locking limit seat 35;

[0042] The floating positioning component 2 is inserted into or pulled out of the locking and limiting seat 35 through a telescopic structure, and is used to lock or unlock the first-direction sliding group 31 and the second-direction sliding group 32.

[0043] As Figure 6 shown, the floating positioning component 2 includes a cylinder body 21, a cylinder mounting seat 22, and a floating positioning lock pin 24; the cylinder mounting seat 22 is fixedly connected to the cylinder body 21 and the flange welding component 1 respectively, the floating positioning lock pin 24 is connected to the telescopic member of the cylinder body 21, and the vertical cross-section of the end of the floating positioning lock pin 24 is an inclined surface that is smaller at the bottom and larger at the top. Through the inclined surface on the floating positioning lock pin, the relative position between the tightening gun and the flange welding component 1 is slowly guided back to the initial position, ensuring the uniqueness and stability of the overall fixture position in the non-tightening position.

[0044] As Figure 7 shown, the floating positioning component 2 further includes a cylinder joint 23, and the cylinder joint 13 is used to connect the cylinder output shaft and the floating positioning lock pin.

[0045] The locking and limiting seat 35 is arranged in the middle of the tightening gun fixing plate 34 to realize the locking of two degrees of freedom in two directions by one positioning lock pin.

[0046] As Figure 9 shown, the flange welding component 1 is provided with a flange 11 fixedly connected to a robot or a robotic arm and a connecting seat 12 connected to the floating positioning component 2 and the automatic floating device 3, and is connected to an automated device. The flange 11 and the connecting seat 12 are connected by bolts, welded, or integrally formed.

[0047] Working process: The floating positioning component 2 is fixed on the flange welding component 1, and the automatic floating device 3 is fixed below the flange welding component 1. When the cylinder body 21 drives the floating positioning lock pin 24 to extend, it will directly guide into the locking and limiting seat 35 installed on the tightening gun fixing plate 34. Through the precise fit of the hole and shaft between the floating positioning lock pin 24 and the locking and limiting seat 35, the flange welding component 1 and the tightening gun fixing plate 34 will slowly guide back to the initial relative position through the inclined surface structure on the floating positioning lock pin 24. At this time, the automatic floating device 3 is locked and the floating function is turned off.

[0048] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic floating adjustment device for a tightening fixture, characterized in that: It comprises a flange welding assembly (1) and an automatic floating assembly (3); The automatic floating assembly (3) comprises a first direction sliding group (31), a second direction sliding group (32), a slide rail fixing plate (33) and a tightening gun fixing plate (34); the first direction sliding group (31) is slidably connected to the flange welding assembly (1) and the slide rail fixing plate (33) respectively; the second direction sliding group (32) is slidably connected to the slide rail fixing plate (33) and the tightening gun fixing plate (34) respectively; the projection of the moving direction of the first direction sliding group (31) on the horizontal plane where the moving direction of the second direction sliding group (32) is located intersects with the moving direction of the second direction sliding group (32).

2. The automatic floating adjustment device for tightening fixture according to claim 1, characterized in that: The first direction sliding group (31) comprises two groups of first slide rail sliders, and the two groups of first slide rail sliders are respectively installed on the flange welding assembly (1) and the slide rail fixing plate (33) along the same direction.

3. The automatic floating adjustment device for tightening fixture according to claim 1, characterized in that: The second direction sliding group (32) comprises two groups of second slide rail sliders, and the two groups of second slide rail sliders are respectively mounted on the slide rail fixing plate (33) and the tightening gun fixing plate (34).

4. The automatic floating adjustment device for tightening fixture according to claim 1, characterized in that: The projection of the moving direction of the first-direction sliding group (31) on the horizontal plane where the moving direction of the second-direction sliding group (32) is located intersects the moving direction of the second-direction sliding group (32) at 90 degrees.

5. The automatic floating adjustment device for tightening fixture according to claim 1, characterized in that: The first direction sliding group (31) and the second direction sliding group (32) are sliding blocks.

6. The automatic floating adjustment device for tightening fixture according to claim 1, characterized in that: It also includes a floating positioning assembly (2) fixedly connected to the flange welding assembly (1); The tightening gun fixing plate (34) is provided with a locking limit seat (35); The floating positioning assembly (2) is inserted into or pulled out of the locking limit seat (35) through a telescopic structure, and is used to lock the first direction sliding group (31) and the second direction sliding group (32) or unlock the first direction sliding group (31) and the second direction sliding group (32).

7. The automatic floating adjustment device for tightening fixture according to claim 6, characterized in that: The floating positioning assembly (2) comprises a cylinder body (21), a cylinder mounting seat (22) and a floating positioning locking pin (24); The cylinder mounting seat (22) is respectively fixedly connected to the cylinder body (21) and the flange welding assembly (1), and the floating positioning locking pin (24) is connected to the telescopic part of the cylinder body (21).

8. The automatic floating adjustment device for tightening fixture according to claim 7, characterized in that: The vertical cross-section of the end of the floating positioning lock pin (24) is an inclined surface that is smaller at the bottom and larger at the top.

9. The automatic floating adjustment device for tightening fixture according to claim 7, characterized in that: The floating positioning assembly (2) further comprises a cylinder joint (23), wherein the cylinder joint (23) is used to connect the cylinder output shaft and the floating positioning lock pin (24).

10. The automatic floating adjustment device for a tightening fixture according to claim 6, characterized in that: The locking limit seat (35) is arranged in the middle of the tightening gun fixing plate (34).

Images