CN212599902U - Clamping device - Google Patents

Abstract

The utility model discloses a binding clasp, including fixed plate, pressure arm subassembly, even arm, connecting rod and handle, the one end of connecting rod through first connecting axle swivelling joint in the fixed plate, the other end of connecting rod and the one end fixed connection of handle, the one end of pressure arm subassembly passes through second connecting axle swivelling joint in the fixed plate, the other end of pressure arm subassembly is used for compressing tightly and treats the clamp, even the one end of arm passes through third connecting axle swivelling joint in the connecting rod, even the other end of arm passes through fourth connecting axle swivelling joint in pressure arm subassembly, passes through spline fixed connection between the other end of connecting rod and the one end of handle. The utility model provides a binding clasp designs into the technical scheme of independent, adjustable structure with the binding clasp handle, can satisfy different application scenes and atress requirements, possesses quick assembly disassembly nature simultaneously.

Description

Clamping device

Technical Field

The utility model relates to a binding clasp, in particular to trial-manufacture automobile body welding frock clamp of assembly angle adjustable.

Background

At present, the automobile body trial-manufacturing tooling clamp of each automobile enterprise is not applied to flexible design. Considering that the product size deviation of the part in the trial-manufacture link is more, the part is corrected by means of a trial-manufacture vehicle body tooling clamp frequently. This puts higher demands on the strength and rigidity of the trial-manufacture vehicle body frock clamp. In order to meet the stress requirement, a clamp part handle of the existing tool clamp is connected with a clamp main body in a welding mode, and the clamp can only be scrapped when design change occurs midway or the process of a project trial manufacturing vehicle is finished, and cannot be adjusted or recycled for continuous use.

Therefore, once the existing clamping device is manufactured, the angle of the clamping device cannot be adjusted according to the operation convenience of operators, and the clamping device can only be adapted by people, so that the clamping device cannot be suitable for different working scenes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the clamper of the existing tool clamp can not adjust the angle according to the operation convenience of the operator, and can not be suitable for different scenes. The utility model provides a binding clasp of assembly angle adjustable.

In order to solve the technical problem, the embodiment of the utility model discloses a clamp, including fixed plate, pressure arm subassembly, even arm, connecting rod and handle, the one end of connecting rod through first connecting axle swivelling joint in the fixed plate, the other end of connecting rod with the one end fixed connection of handle, the one end of pressing the arm subassembly pass through second connecting axle swivelling joint in the fixed plate, the other end of pressing the arm subassembly is used for compressing tightly and treats the clamp, even the one end of arm pass through third connecting axle swivelling joint in the connecting rod, even the other end of arm pass through fourth connecting axle swivelling joint in press the arm subassembly.

The other end of the connecting rod is fixedly connected with one end of the handle through a spline.

In the technical scheme, the handle is connected with the connecting rod through the spline, the clamping device is locked through the spline after the angle which is most suitable for operation of an operator can be adjusted in the assembling process, and the disassembly and the assembly are convenient. Therefore, for the operation of making things convenient for the operation personnel, the utility model discloses a binding clasp can carry out angular adjustment according to operation personnel's demand, thereby makes the utility model discloses a binding clasp can be applicable to different work scenes to realize the recycle of binding clasp.

In some embodiments, the spline includes a spline shaft, a first spline hole and a second spline hole, the first spline hole is opened at and penetrates through the other end of the connecting rod, the second spline hole is opened at and penetrates through one end of the handle, one end of the spline shaft is inserted into and fixed in the first spline hole on the connecting rod, and the other end of the spline shaft is inserted into and fixed in the second spline hole on the handle.

In some embodiments, an interference fit is formed between one end of the spline shaft and the first spline hole on the connecting rod, and an interference fit is formed between the other end of the spline shaft and the second spline hole on the handle. The interference fit ensures a relative fixation between the handle and the linkage.

In some possible embodiments, the spline shaft and the connecting rod are of a one-piece structure, the other end of the connecting rod is provided with the spline shaft, and the spline shaft of the connecting rod can penetrate through the spline hole at one end of the handle.

In some embodiments, the connecting rod includes first connecting rod section and the second connecting rod section that meets in proper order along the length direction of connecting rod, is formed with the contained angle between first connecting rod section and the second connecting rod section, so that the connecting rod forms bending structure, just the one end of connecting rod is located keeping away from of first connecting rod section the one end of second connecting rod section, the other end of connecting rod is located keeping away from of second connecting rod section the one end of first connecting rod section.

In some embodiments, the included angle is 90 ° to 180 °.

In some embodiments, the third connecting shaft is disposed at the junction of the first and second link segments.

In some embodiments, the pressing arm assembly includes a pressing arm and a connecting block, one end of the pressing arm is rotatably connected to the fixing plate through the second connecting shaft, the other end of the pressing arm is fixedly connected to one end of the connecting block, and the other end of the connecting arm is rotatably connected to the pressing arm through the fourth connecting shaft.

In some embodiments, the pressure arm comprises a pressure arm rod and a mounting block, the lower surface of the mounting block is fixedly connected with one end of the upper surface of the connecting block, and one end of the pressure arm rod is rotatably connected to the fixing plate through the second connecting shaft; the other end of the arm pressing rod is fixedly connected with the mounting block, and the other end of the connecting arm is rotatably connected to the arm pressing rod through the fourth connecting shaft.

Drawings

Fig. 1 is a schematic structural view of a clamper according to embodiment 1 of the present invention;

fig. 2(a) is an exploded view of a view of the clamper according to embodiment 1 of the present invention;

fig. 2(b) is an exploded view of the clamper in accordance with embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the gripper handle in different mounting positions according to embodiment 1 of the present invention.

Description of reference numerals:

1. a handle;

2. a connecting rod; 21. a first link section; 22. a second link section; 23. a first mounting hole; 24. a second mounting hole;

3. a fixing plate; 31. a third mounting hole; 32. a fourth mounting hole;

4. pressing the arm; 41. a arm pressing rod; 411. a fifth mounting hole; 412. a sixth mounting hole; 42. mounting blocks;

5. connecting blocks;

6. a spline; 61. a spline shaft; 62. a first splined bore; 63. a second spline hole;

7. a connecting arm; 71. a seventh mounting hole; 72. an eighth mounting hole;

8. a first connecting shaft; 9. a second connecting shaft; 10. a third connecting shaft; 11. and a fourth connecting shaft.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Example 1

For solving the technical problem, the utility model provides a binding clasp, see fig. 1, fig. 2(a) and fig. 2(b), including fixed plate 3, the pressure arm subassembly, even arm 7, connecting rod 2 and handle 1, 8 swivelling joint in fixed plate 3 are passed through to the one end of connecting rod 2, the other end of connecting rod 2 and handle 1's one end fixed connection, 9 swivelling joint in fixed plate 3 are passed through to the one end of pressure arm subassembly, the other end of pressure arm subassembly is used for compressing tightly and treats the clamp, even 10 swivelling joint in connecting rod 2 of one end of arm 7, even the other end of arm 7 passes through 11 swivelling joint in the pressure arm subassembly of fourth connecting axle, through 6 fixed connection of splines between the other end of connecting rod 2 and the one end of handle 1.

Wherein, the pressure arm subassembly is including pressing arm 4 and connecting block 5, and 9 swivelling joint in fixed plate 3 are passed through to the one end of pressing arm 4, and the other end of pressing arm 4 and the one end fixed connection of connecting block 5, and the other end of linking arm 7 passes through 11 swivelling joints in pressure arm 4 of fourth connecting axle. An included angle is formed between the mounting block 42 and the arm pressing rod 41, and the included angle can be adjusted in angle according to actual requirements, without limitation.

Specifically, the pressure arm 4 comprises a pressure arm rod 41 and a mounting block 42, the lower surface of the mounting block 42 is fixedly connected with one end of the upper surface of the connecting block 5, and one end of the pressure arm rod 41 is rotatably connected to the fixing plate 3 through a second connecting shaft 9; the other end of the arm pressing rod 41 is fixedly connected with the mounting block 42, and the other end of the connecting arm 7 is rotatably connected with the arm pressing rod 41 through a fourth connecting shaft 11. The fixing and connecting manner in this embodiment may be welding or bolt fixing.

Further, the spline 6 includes a spline shaft 61, a first spline hole 62, and a second spline hole 63, see fig. 2(b), the first spline hole 62 is opened in and penetrates the other end of the connecting rod 2, the second spline hole 63 is opened in and penetrates one end of the handle, one end of the spline shaft 61 is inserted and fixed in the first spline hole 62 on the connecting rod 2, and the other end of the spline shaft 61 is inserted and fixed in the second spline hole 63 on the handle.

One end of the spline shaft 61 is in interference fit with the first spline hole 62 on the connecting rod 2, and the other end of the spline shaft 61 is in interference fit with the second spline hole 63 on the handle 1.

In the present embodiment, referring to fig. 2(a) and 2(b), the connecting rod 2 includes two identical plate-like bodies, and the two plate-like bodies are oppositely disposed in parallel; the fixing plate 3 also comprises two identical plate-shaped bodies which are arranged oppositely in parallel, and the connecting arm 7 comprises two identical plate-shaped bodies which are arranged oppositely in parallel; the connecting rod 2 structure of the two plate-shaped bodies, the fixing plate 3 structure of the two plate-shaped bodies and the connecting arm 7 structure of the two plate-shaped bodies can increase the connection stability between the components of the clamping device.

In the assembling process, one end of the pressing arm rod 41 is located between the two plate-shaped bodies of the fixing plate 3, and the second connecting shaft 9 passes through the third mounting hole 31 of one of the plate-shaped bodies of the fixing plate 3, the sixth mounting hole 412 of the pressing arm rod 41, and the third mounting hole 31 of the other plate-shaped body of the fixing plate 3 in sequence, and enables the fixing plate 3 to be rotatably connected relative to the pressing arm rod 41.

The first connecting shaft 8 passes through the second mounting hole 24 of one of the plate-shaped bodies of the connecting rod 2, the fourth mounting hole 32 of one of the plate-shaped bodies of the fixing plate 3, the fourth mounting hole 32 of the other one of the plate-shaped bodies of the fixing plate 3, and the second mounting hole 24 of the other one of the plate-shaped bodies of the connecting rod 2 in this order, and allows the connecting rod 2 to be rotatably coupled with respect to the fixing plate 3.

The third connecting shaft 10 passes through the first mounting hole 23 of one of the plate-shaped bodies of the link 2, the eighth mounting hole 72 of one of the plate-shaped bodies of the link arm 7, the eighth mounting hole 72 of the other plate-shaped body of the link arm 7, and the first mounting hole 23 of the other plate-shaped body of the link 2 in this order, and allows the link 2 to be rotatably connected with respect to the link arm 7.

The fourth connecting shaft 11 passes through the seventh mounting hole 71 of one of the plate-shaped bodies of the link arm 7, the fifth mounting hole 411 of the arm pressing lever 41, and the seventh mounting hole 71 of the other plate-shaped body of the link arm 7 in this order, and allows the link arm 7 to be rotatably connected with respect to the arm pressing lever 41.

The spline shaft 61 passes through the first spline hole 62 and the second spline hole 63 of one of the plate-like bodies of the connecting rod 2 and the first spline hole 62 of the other plate-like body of the connecting rod 2 in this order.

Referring to fig. 2(b), the second connecting shaft 9 and the fourth connecting shaft 11 are variable cross-section screws with large middle diameter and small two ends diameter; the first connecting shaft 8 and the third connecting shaft 10 are variable cross-section screws with large middle diameter and small diameters at two ends, and threaded at two ends, and when the connecting device is installed, the two ends need to be connected and screwed or riveted by adopting nuts in a matching way.

Specifically, the second connecting shaft 9 has a wide-section screw portion whose diameter is larger than that of the third mounting hole 31, and when mounted, both ends of the screw having a narrow section of the second connecting shaft 9 are inserted into the third mounting hole 31 of the fixed plate 3, and middle portions of the screw having a wide section of the second connecting shaft 9 abut against the two plate-like bodies of the fixed plate 3, respectively, to restrict axial movement of the second connecting shaft 9 along the third mounting hole 31.

The diameter of the portion of the screw of the fourth connecting shaft 11 having a wide cross section is larger than that of the seventh mounting hole 71, when mounted, both ends of the screw of the fourth connecting shaft 11 having a narrow cross section are inserted into the seventh mounting holes 71 of the link arms 7, and the middle portions of the screw of the fourth connecting shaft 11 having a wide cross section are respectively abutted against the two plate-shaped bodies of the link arms 7 to restrict the axial movement of the fourth connecting shaft 11 along the seventh mounting holes 71;

the diameter of the screw part of the first connecting shaft 8 with the wide section is larger than that of the fourth mounting hole 32, when the connecting device is mounted, two ends of the screw part of the first connecting shaft 8 with the narrow section are sequentially inserted into the fourth mounting hole 32 of the fixing plate 3 and the second mounting hole 24 of the connecting rod 2, and a structure that nuts are matched with threads at two ends of the first connecting shaft 8 to be connected, screwed or riveted and fixed is adopted; the intermediate portions of the screws of the first connecting shaft 8 having a wide cross section abut against the two plate-like bodies of the fixed plate 3, respectively, to restrict the axial movement of the first connecting shaft 8 along the fourth mounting hole 32.

The diameter of the screw part with the wide section of the third connecting shaft 10 is larger than that of the eighth mounting hole 72, when the third connecting shaft 10 is installed, two ends of the screw with the narrow section of the third connecting shaft 10 are sequentially inserted into the eighth mounting hole 72 of the connecting arm 7 and the first mounting hole 23 of the connecting rod 2, and a structure that nuts are matched with threads at two ends of the third connecting shaft 10 to be connected, screwed or riveted and fixed is adopted; the intermediate portions of the screws of the third connecting shaft 10 having a wide cross section abut against the two plate-like bodies of the link arms 7, respectively, to restrict the axial movement of the third connecting shaft 10 along the eighth mounting hole 72.

Taking the structure shown in fig. 3 as an example, an operator can select among the position a, the position b, and the position c according to the specific operator position, arrangement space, and movement space requirements in actual use. In this embodiment, once the position is confirmed, the attachment of the clamp handle is completed by inserting the spline shaft 61 into the first spline hole 62 of one of the plate-like bodies of the connecting rod 2 in alignment, then passing through the second spline hole 63 in the clamp handle 1, striking it with a tool, passing out from the other end of the handle 1, and then passing through the first spline hole 62 of the other plate-like body of the connecting rod 2.

When the clamping device works, the mounting hole in the fixing plate 3 is in bolted connection with the mounting seat, the connecting rod 2 is driven to rotate around the first rotating shaft 8 by clockwise rotating the clamping device handle 1, the pressing arm 4 of the clamping device is further driven to rotate clockwise around the second rotating shaft 9 by the connecting arm 7, and an object to be pressed is placed below the connecting block 5; then handle 1 is rotated anticlockwise, drives connecting rod 2 and rotates around first axis of rotation 8, and then drives the pressure arm 4 of binding clasp through link arm 7 and rotate anticlockwise around second axis of rotation 9, compresses tightly the thing of waiting to compress tightly through pressing from both sides tight connecting block 5 finally. Wherein, in this embodiment, handle 1, connecting rod 2, fixed plate 3, pressure arm pole 41, installation piece 42, even arm 7 all adopt the metal material, and connecting block 5 can adopt soft material, and connecting block 5 can increase and treat the atress area of clamp, can avoid leaving the indentation on treating the clamp simultaneously.

Furthermore, the connecting rod 2 comprises a first connecting rod section 21 and a second connecting rod section 22 which are sequentially connected along the length direction of the connecting rod 2, an included angle is formed between the first connecting rod section 21 and the second connecting rod section 22, so that the connecting rod 2 forms a bending structure, one end of the connecting rod 2 is located at one end, far away from the second connecting rod section 22, of the first connecting rod section 21, and the other end of the connecting rod 2 is located at one end, far away from the first connecting rod section 21, of the second connecting rod section 22. The third connecting shaft 10 is arranged at the junction of the first connecting rod section 21 and the second connecting rod section 22.

Wherein the included angle is 90 degrees to 180 degrees, the angle of the included angle can be adjusted according to the actual need, the utility model discloses do not do the restriction.

The technical scheme that the clamp handle is designed into an independent and adjustable structure is adopted, so that different application scenes and stress requirements can be met, and the clamp handle has quick disassembly and assembly. In the process of optimizing the structure of the clamp, the inventor replaces the welding mode adopted in the traditional design and changes the mode into the spline connection mode. The spline connection transmission has the advantages of large contact area, strong bearing capacity, good centering performance and guiding performance, shallow key groove, small stress concentration, small weakening of the strength of the key shaft and the opening of the clamping plate, compact structure and the like.

The clamp handle is operated to conveniently open and compress the parts of the vehicle body to be welded. In the use or after the whole project vehicle manufacturing stage, the mounting position angular adjustment and the recovery of binding clasp handle are realized fast to the accessible with the mode that the spline was taken out, save trial-manufacture welding frock clamp's development and debugging expense for the enterprise.

On the one hand, from the development cycle point of view. The traditional tool clamp clamping device can be completed within at least 2 months from design to manufacture; the technology can meet the requirement of flexible quick assembly and disassembly according to the stress scene requirement of a trial-manufacture vehicle body fixture under the condition that clamping positions need to be adjusted in the positions of different platform projects, different modified vehicle types and different vehicle body welding parts, only 0.5 month is needed to confirm the installation position of the clamping device, and the design and manufacturing period of 1.5 months is saved compared with the traditional technology.

On the other hand, from the viewpoint of development cost. At present, the updating iteration speed of the automobile industry is faster and faster, the newly-shaped automobile body structure is infinite, the clamp structure in the traditional design can not be recycled basically, and only new clamps can be designed and manufactured continuously to meet the trial-manufacture requirement; the utility model discloses well binding clasp of optimizing can realize one hundred percent recycle, only need a small amount of assembly cost can.

More importantly, compared with the traditional clamping device, once the clamping device is manufactured, the angle can not be adjusted conveniently according to the operation of an operator, and only the clamping device can adapt to a tool clamp; and the utility model discloses the adjustment of handle angle just can be realized to the binding clasp of optimization structure, adjusts to behind the angle that most suitable cooperation personnel operated rethread spline locking binding clasp can.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a clamp, includes fixed plate, pressure arm subassembly, links arm, connecting rod and handle, its characterized in that: the one end of connecting rod through first connecting axle swivelling joint in the fixed plate, the other end of connecting rod with the one end fixed connection of handle, the one end of pressing the arm subassembly pass through second connecting axle swivelling joint in the fixed plate, the other end of pressing the arm subassembly is used for compressing tightly treats the clamp, the one end of linking the arm pass through third connecting axle swivelling joint in the connecting rod, the other end of linking the arm pass through fourth connecting axle swivelling joint in press the arm subassembly, the other end of connecting rod with through spline fixed connection between the one end of handle.

2. The clamp of claim 1, wherein the spline comprises a spline shaft, a first spline hole and a second spline hole, the first spline hole is formed in and penetrates the other end of the connecting rod, the second spline hole is formed in and penetrates one end of the handle, one end of the spline shaft is inserted and fixed in the first spline hole of the connecting rod, and the other end of the spline shaft is inserted and fixed in the second spline hole of the handle.

3. The clamp of claim 2, wherein one end of said spline shaft is in interference fit with said first spline hole in said connecting rod, and the other end of said spline shaft is in interference fit with said second spline hole in said handle.

4. The clamping device as claimed in claim 2, wherein the connecting rod includes a first connecting rod section and a second connecting rod section connected in series along the length direction of the connecting rod, an included angle is formed between the first connecting rod section and the second connecting rod section, so that the connecting rod forms a bending structure, one end of the connecting rod is located at the end of the first connecting rod section far away from the second connecting rod section, and the other end of the connecting rod is located at the end of the second connecting rod section far away from the first connecting rod section.

5. The clamp of claim 4, wherein the included angle is 90 ° to 180 °.

6. The clamp of claim 4, wherein the third connecting axis is disposed at the junction of the first link segment and the second link segment.

7. The clamping device as claimed in claim 4, wherein the pressing arm assembly includes a pressing arm and a connecting block, one end of the pressing arm is rotatably connected to the fixing plate through the second connecting shaft, the other end of the pressing arm is fixedly connected to one end of the connecting block, and the other end of the connecting arm is rotatably connected to the pressing arm through the fourth connecting shaft.

8. The clamping device as claimed in claim 7, wherein the pressing arm comprises a pressing arm rod and a mounting block, the lower surface of the mounting block is fixedly connected with one end of the upper surface of the connecting block, and one end of the pressing arm rod is rotatably connected with the fixing plate through the second connecting shaft; the other end of the arm pressing rod is fixedly connected with the mounting block, and the other end of the connecting arm is rotatably connected to the arm pressing rod through the fourth connecting shaft.

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