TWI668072B - Fixing clamp - Google Patents

Abstract

The invention relates to a fixing fixture comprising a connecting body, a holding component and a clamping arm. The holding component includes a fixed handle, a movable handle, a spring, a connecting rod and an adjusting screw. The fixed handle and the movable handle are respectively pivotally connected to the connecting body, and the spring connects the fixed handle and the connecting body. The adjusting screw is movably screwed to the fixed handle, and one end of the connecting rod is pivotally disposed on the movable handle, and the other end of the connecting rod abuts against the adjusting screw; the clamping arm is pivotally positioned on the connecting body The clamp arm is pressed against an object.

Description

Fixing fixture

The present invention relates to a fixture, and more particularly to a fixture.

During the production process, the workpiece often has vibration or offset due to the action of the processing tool or unintended external force, which affects the quality of the final product. Therefore, in order to avoid the above situation, it is often used during processing. The fixture guides the workpiece or uses a fixture to position the workpiece on the workbench to aid in production operations.

For example and without limitation, it is often necessary to use a clamp to position the workpiece during the welding operation so that the two workpieces to be combined with each other can be maintained at a predetermined position. However, the jig for welding is usually directly welded and fixed on the working surface, and then pressed against the workpiece through the clamp arm. Therefore, once the shape of the workpiece to be pressed is changed, the previously fixed fixture must be removed. Re-adjustment of position welding and fixing, resulting in lengthy, complicated, and inefficient processing time, there are shortcomings to be improved.

Therefore, it is necessary to provide a novel and progressive fixing jig to solve the above problems.

The main object of the present invention is to provide a fixing jig that can be connected through the clamp arm The connector can be oscillatingly positioned so that the user can adjust the pivoting position of the clamping arm to press the positioning object after the holding component is fixed, which has wide applicability, can effectively simplify the welding work flow and improve work efficiency. .

To achieve the above object, the present invention provides a fixing fixture comprising: a connecting body, a holding component and a clamping arm. The holding component includes a fixed handle, a movable handle, a spring, a connecting rod and an adjusting screw. The fixed handle and the movable handle are respectively pivotally connected to the connecting body, and the spring connects the fixed handle and the connecting body. The adjusting screw is movably screwed to the fixed handle, and one end of the connecting rod is pivotally disposed on the movable handle, and the other end of the connecting rod abuts against the adjusting screw; the clamping arm is pivotally positioned on the connecting body The clamp arm is pressed against an object.

1‧‧‧Connector

11‧‧‧First board

12‧‧‧Second board

21‧‧‧ First Joint Department

22‧‧‧ Second Joint Department

23‧‧‧ Third Joint Department

24‧‧‧ Fourth Joint Department

31‧‧‧First pivot hole

32‧‧‧Second pivot hole

33‧‧‧ third pivot hole

34‧‧‧4th pivot hole

41‧‧‧First virtual line segment

42‧‧‧second virtual line segment

43‧‧‧ third virtual line segment

44‧‧‧projection point

45‧‧‧First angle

46‧‧‧second angle

5‧‧‧ Holding components

51‧‧‧ fixed handle

52‧‧‧ Activity handle

53‧‧‧ Spring

55‧‧‧Adjusting screw

56‧‧‧ Nuts

6‧‧‧Clamp arm

61‧‧‧First arm

62‧‧‧second arm

621‧‧‧Band

63‧‧‧ chuck

7‧‧‧Clamping members

8‧‧‧ Positioning mechanism

81‧‧‧ tooth recess

82‧‧‧ convex

83‧‧‧Forcing components

831‧‧‧ shaft parts

832‧‧‧forced parts

9‧‧‧ body

91‧‧‧ Positioning Department

911‧‧‧ link

92‧‧‧s

A1‧‧‧ objects

A2‧‧‧ work surface

A3‧‧‧Adhesive body

54‧‧‧ linkage

1 is a perspective view of an embodiment of the present invention.

Figure 2 is an exploded view of Figure 1.

Figure 3 is a perspective view of the connector.

Figure 4 is a front elevational view of Figure 3.

FIG. 5 is a schematic diagram of a use state according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of another use state according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of still another use state according to an embodiment of the present invention.

The following is a description of possible embodiments of the present invention, but is not intended to limit the present invention. The scope of the invention to be protected is described first.

Referring to FIG. 1 to FIG. 7 , an embodiment of the present invention is shown. The fixing fixture of the present invention comprises a connecting body 1 , a holding component 5 and a clamping arm 6 .

The holding component 5 includes a fixed handle 51, a movable handle 52, a spring 53, a connecting rod 54 and an adjusting screw 55. The fixed handle 51 and the movable handle 52 are pivotally connected to the connecting body 1, respectively. The fixing handle 51 and the connecting body 1 are connected to the fixing handle 51. The adjusting screw 55 is movably screwed to the fixing handle 51. One end of the connecting rod 54 is pivotally disposed on the movable handle 52, and the other end of the connecting rod 54 abuts The screw 55 is adjusted. The clamping arm 6 is pivotally positioned on the connecting body 1 for pressing against an object A1.

As can be seen from the above, when the fixing handle 51 is fixed, the user only needs to push the movable handle 52 to approach the fixed handle 51 to drive the connecting body 1 to swing relative to the fixed handle 51, thereby driving the clamping arm 6 against the same. The object A1 is very convenient and fast in operation. Moreover, the tension of the movable handle 52 and the fixed handle 51 and the initial angular position of the clamp arm 6 can be controlled by the adjustment screw 55, and the initial position of the clamp arm 6 can be controlled, thereby changing the clamp arm 6 against the object. The power of A1. Preferably, a nut 56 is screwed to the adjusting screw 55 and selectively abuts the fixing handle 51, thereby further preventing the adjusting screw 55 from unintended rotation and improving the positioning of the adjusting screw 55. strength.

It is worth mentioning that when the fixing jig is to be clamped to the object A1 of another different aspect, the user only needs to adjust the clamping arm 6 to different pivoting positions, and the position of the fixing jig can be kept fixed. No need to move, that is, no need to re-position to continue to use the established position. Therefore, in the actual operation (such as the positioning of the workpiece of the welding), the fixing fixture can be widely matched with the contour type of the different objects A1 only once, and the user can save a lot of positioning time and adjust the clip by swinging. The arm 6 can find the appropriate point of pressure relatively quickly to position the object A1.

In the embodiment, the clamping arm 6 includes a first arm segment 61 and a second arm segment 62. The first arm segment 61 is connected to the connecting body 1 in a curved shape. The length of the first arm segment 61 is greater than the length of the second arm segment 62, and the second arm segment 62 is laterally connected to the first arm segment. 61, and further, the clamp arm 6 is substantially "ヘ" shaped.

Preferably, the fixing fixture further comprises a collet 63 for pressing against the object A1. The collet 63 is pivotally connected to the clamping arm 6. The clamping arm 63 can be pivoted to enable the clamping arm 6 to There are more different position changes to locate the object A1. Moreover, the clamp arm 6 is indirectly pressed against the object A1 through the collet 63, so that wear is concentrated on the collet 63 to keep the structure of the clamp arm 6 intact. In addition, the clamping arm 6 is pivotally connected to the pivoting direction of the connecting body 1. The size of the clamping head 63 is preferably not larger than the size of the second arm segment 62, so that the clamping head 63 can be widely used. The pivot angle does not easily interfere with the surrounding object or the second arm segment 62.

The connecting body 1 is further described. The connecting body 1 includes a first joint portion 21, a second joint portion 22, a third joint portion 23 and a fourth joint portion 24. The clamp arm 6 The movable handle 52 is pivotally connected to the second joint portion 22, the fixed handle 51 is pivotally connected to the third joint portion 23, and one end of the spring 53 is positioned at the fourth joint portion. twenty four. Further, the connecting body 1 includes two first plate members 11 and a second plate member 12, and the two first plate members 11 sandwich the second plate member 12, and the two first plates 11 are A portion of the second plate member 12 protrudes from the second plate member 12 to form the first joint portion 21, and a portion of the second plate member 12 protrudes from the two first plate members 11 to form the fourth joint portion 24, the two first plates The second joint portion 22 and the third joint portion 23 are respectively formed at the overlapping portions of the piece 11 and the second plate member 12; wherein the fourth joint portion 24 is interposed between the second joint portion 22 and the third joint portion Between the 23rd.

Specifically, a pivoting portion 621 of the clamping arm 6 is rotatably pivotally connected to the first joint portion 21, and a pressing assembly 83 connects the pivot portion 621 and the first joint portion 21, and the pressing assembly 83 is provided for the outside. Alternatively, the pivot portion 621 and the first joint portion 21 can be selectively pressed laterally, so that the pivot portion 621 cannot be opposite The first joint portion 21 is rotated. More specifically, the fixing fixture further includes a positioning mechanism 8 disposed on the pivot portion 621 and the first joint portion 21, the positioning mechanism 8 includes a plurality of tooth recesses 81, at least one convex portion 82, and The pressing member 83 is selectively disposed in a tooth recess 81. One of the plurality of tooth recesses 81 and the at least one convex portion 82 is disposed on the pivot portion 621, and the other is provided. In the first joint portion 21, the pressing assembly 83 is externally operated to selectively press the convex portion 82 into the tooth concave portion 81, and the pivot portion 621 is positioned on the first joint portion 21.

In the embodiment, the pivot portion 621 is provided with the plurality of tooth recesses 81. The first joint portion 21 is provided with four convex portions 82 arranged at equal intervals, and the pressing assembly 83 includes a shaft member 831 and a pressing portion. The shaft member 831 is configured to pass through the first joint portion 21 and the pivot portion 621. The pressing member 832 is rotatably coupled to the shaft member 831 to axially press against the first joint portion 21.

The first pivoting portion 31 is disposed on the first joint portion 21, and a second pivot hole 32 is disposed in the second joint portion 22. A third pivot hole 33 is defined in the joint portion 23, and a fourth pivot hole 34 is defined in the fourth joint portion 24. The center of the first pivot hole 31 and the center line of the third pivot hole 33 form a first A virtual line segment 41, the center of the second pivot hole 32 is vertically projected to the first virtual line segment 41 to form a projection point 44. The ratio of the distance from the center of the first pivot hole 31 to the projection point 44 to the distance from the center of the third pivot hole 33 to the projection point 44 is between 0.6 and 0.8, so that when When the movable handle 52 is pivoted toward the fixed handle 51 to actuate the connecting body 1 to move the clamping arm 6, the clamping arm 6 can exert a force to the object A1.

More specifically, the center of the first pivot hole 31 and the center of the fourth pivot hole 34 form a second virtual line segment 42. The center of the first pivot hole 31 and the center of the second pivot hole 32 The line forms a third imaginary line segment 43. The first imaginary line segment 41 and the second imaginary line segment 42 are disposed with a first angle 45. The second imaginary line segment 42 and the third imaginary line segment 43 are disposed with a second angle 46. , the first angle 45 and the first The ratio of an angle 45 is between 0.6 and 0.9. Through the arrangement of the first pivot hole 31, the second pivot hole 32, the third pivot hole 33 and the fourth pivot hole 34, the connecting body 1 can effectively interlock the holding component 5 and the clamping arm 6 And can have better connecting force transmission effect.

It can be understood that the connecting body 1, the holding component 5 and the clamping arm 6 are interlocked with each other and joined into a clamping member 7. Therefore, the fixing fixture preferably further comprises a body 9 and the fixing handle 51 The seat body 9 is detachably positioned, so that the seat body 9 is only provided at different working positions in advance, and the user can pull the clamping member 7 away from the seat at the first working position. The body 9, which is used to assemble the clamping member 7 in the second working position, is very convenient and cost-effective.

In more detail, the base body 9 is further provided with at least one connecting surface 911, and each of the connecting surfaces 911 is curved and is connected to a working surface A2 by an adhesive body A3 (such as solder, adhesive, etc.). The connecting surface 911 that is curved can form a large bonding space with the working surface A2, so that the adhesive body A3 can penetrate the bonding space to connect the connecting surface 911 and the working surface A2 in a wide range, thereby making the base 9 It can be firmly bonded to the working surface A2 at any different angles (such as flat and forward).

In more detail, the base body 9 further includes at least one positioning portion 91 and a base portion 92 that are connected to each other. The fixing handle 51 is detachably disposed on the at least one positioning portion 91, and the at least one positioning portion 91 is respectively provided. The at least one joint surface 911. In this embodiment, the number of the at least one positioning portion 91 is two, and the positioning portion 91 sandwiches the fixing handle 51. The seat portion 92 is embedded in the two positioning portions 91.

In summary, the fixing fixture of the present invention can control the clamping arm to press the positioning object only by pressing the movable handle close to the fixed handle, and the clamping arm can be pivotally positioned relative to the connecting body, so that the fixing fixture can be widely pressed and positioned at the same position. Different objects. In addition, the fixed handle is detachably assembled to the base body, so that the clamping member can be carried and connected to the seat body at different positions, which is very convenient.

Claims (9)

A fixing fixture comprises: a connecting body; a holding component comprising a fixing handle, a movable handle, a spring, a connecting rod and an adjusting screw, wherein the fixing handle and the movable handle are respectively pivotally connected to the connecting body, The spring is coupled to the fixed handle and the connecting body, the adjusting screw is movably screwed to the fixed handle, one end of the connecting rod is pivotally disposed on the movable handle, and the other end of the connecting rod abuts against the adjusting screw; The clamping arm is pivotally positioned on the connecting body for pressing against an object; wherein the connecting body comprises a first joint portion, and a pivot portion of the clip arm is rotatably pivotally connected to the first joint portion a pressing assembly is coupled to the pivot portion and the first joint portion, and the pressing assembly is externally operable to selectively bias the pivot portion and the first joint portion laterally, thereby preventing the pivot portion from being opposite to the first portion A joint rotates. The fixing fixture of claim 1, further comprising a positioning mechanism, the positioning mechanism comprising a plurality of tooth recesses, at least one protrusion and the pressing component, each of the protrusions being selectively embossably disposed in a tooth recess One of the plurality of concave portions and the at least one convex portion is disposed at the pivot portion, and the other is disposed at the first joint portion, and the pressing assembly is externally operable to selectively press the convex portion to be embedded therein The tooth recess further positions the pivot portion at the first joint. The fixing fixture of claim 1, wherein the connecting body further comprises a second joint portion, a third joint portion and a fourth joint portion, the clamp arm is pivotally connected to the first joint portion, and the movable handle pivot Connected to the second joint portion, the fixing handle is pivotally connected to the third joint portion, and one end of the spring is positioned at the fourth joint portion. The fixing jig according to claim 3, wherein a first pivot is disposed in the first joint portion a second pivot hole is disposed in the second joint portion, a third pivot hole is disposed in the third joint portion, and a fourth pivot hole is disposed in the fourth joint portion. The center line and the center line of the third pivot hole form a first virtual line segment, and the center of the second pivot hole is vertically projected to the first virtual line segment to form a projection point; wherein the center of the first pivot hole reaches the projection The ratio of the distance of the point to the distance from the center of the third pivot hole to the projection point is between 0.6 and 0.8. The fixing fixture of claim 3, wherein the connecting body comprises two first plates and a second plate, the two first plates sandwiching the second plate, and the two first plates are a portion protruding from the second plate to form the first joint portion, a portion of the second plate member protruding from the two first plate members to form the fourth joint portion, the two first plate members and the second portion The second joint portion and the third joint portion are respectively formed at the overlapping portions of the plate member; wherein the fourth joint portion is interposed between the second joint portion and the third joint portion. The fixing jig according to any one of claims 1 to 5, further comprising a body detachably positioned to the seat body. The fixing jig according to claim 6, wherein the seat body is further provided with at least one connecting surface, each of the connecting surfaces being curved and being positioned to be positioned on a working surface by an adhesive joint. The fixing fixture of claim 7, wherein the base further comprises at least one positioning portion and a portion connected to each other, the fixing handle being detachably disposed on the at least one positioning portion, wherein the at least one positioning portion is respectively provided The at least one joint surface. The fixing fixture of claim 5, further comprising a body and a collet for pressing against the object, the fixing handle being detachably positioned on the seat body, the collet being pivotally connected to the clamping arm; The base body is further provided with at least one connecting surface, each of the connecting surfaces is curved and is connected to a working surface by an adhesive joint; the base body further comprises at least one positioning portion and a connecting portion connected to each other. The fixing handle is detachably disposed on the at least one positioning portion, and the at least one positioning portion is respectively provided with the at least one connecting surface; The positioning mechanism includes a plurality of tooth recesses, at least one convex portion, and the pressing assembly, each of the convex portions being selectively occludably disposed in a tooth concave portion, the plurality of tooth concave portions and the at least one convex portion One of the ones is disposed at the pivot portion, and the other is disposed at the first joint portion. The pressing assembly is externally operable to selectively press the convex portion into the concave portion of the tooth, thereby positioning the pivot portion at the a first pivoting portion, a first pivot hole is disposed in the first joint portion, a second pivot hole is disposed in the second joint portion, and a third pivot hole is disposed in the third joint portion. A fourth pivot hole is disposed in the fourth joint portion, and a center line of the first pivot hole and a center line of the third pivot hole form a first virtual line segment, and a center of the second pivot hole is vertically projected to the first virtual line segment Forming a projection point; wherein a ratio of a distance from a center of the first pivot hole to the projection point to a distance from a center of the third pivot hole to the projection point is between 0.6 and 0.8; the clip arm includes a a first arm segment and a second arm segment, the first arm segment being connected in a curved manner a connecting body, the length of the first arm segment is greater than the length of the second arm segment, the second arm segment is laterally connected to the first arm segment, the first arm segment is curved, and the clamping arm is substantially The shape of the at least one positioning portion is two, and the positioning portion sandwiches the fixing handle, the seat portion is embedded in the two positioning portions; the center of the first pivot hole and the fourth pivot hole The center line forms a second virtual line segment, and the center of the first pivot hole and the center line of the second pivot hole form a third virtual line segment, and the first virtual line segment and the second virtual line segment are respectively provided with a first virtual line segment. An angle between the second virtual line segment and the third virtual line segment is a second angle, the ratio of the first angle to the first angle is between 0.6 and 0.9; and the connector is pivotally connected to the connector Viewed in a pivotal direction, the size of the collet is not greater than the size of the second arm segment; a nut is screwed to the adjusting screw and selectively abuts the fixed handle; the pressing assembly includes a shaft member And a pressing member, the shaft member passes through the first joint portion and the pivot portion, and the pressing member is rotatably coupled The shaft member axially pressed against the first coupling portion; the connecting member, the holding element and the movable clamp arms and connecting lines interconnected to a clamping member.