CN107270851B - Fixing jig - Google Patents

Abstract

The invention relates to a fixing jig for fixing a workpiece, which comprises: the device comprises a frame body, wherein connecting blocks with standard surfaces are arranged on two opposite inner side walls of the frame body, and the standard surfaces are used for being attached to a reference surface of a workpiece; the supporting mechanisms are arranged on two sides of the frame body; the auxiliary piece is rotatably arranged on the supporting mechanism; and the abutting mechanism is arranged at one end of the auxiliary piece far away from the supporting mechanism and is used for elastically abutting against the non-reference surface of the workpiece. When the fixed jig is placed on the workbench to perform height detection on the workpiece, the detection equipment on the workbench can perform height detection on the workpiece through the reference surface of the workpiece, so that interference on the height detection of the workpiece due to direct contact of the non-reference surface of the workpiece and the workbench is avoided, and the height detection precision of the workpiece can be greatly improved.

Description

Fixed fixture

technical field

The invention relates to the field of workpiece detection, in particular to a fixed fixture.

Background technique

In the machining process, in order to make the quality of the workpiece better, a high degree of inspection is often performed after the workpiece is processed to determine whether the quality of the workpiece is qualified. During inspection, the workpiece is usually placed on a workbench so that its height is inspected by the inspection equipment on the workbench. Due to the complex structure of the workpiece itself, the outer surface is relatively uneven, so directly placing the workpiece on the workbench for height detection often leads to a relatively large error in the result of the workpiece height detection, thus affecting the height detection accuracy of the workpiece.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a fixing jig that can improve the height detection accuracy of the workpiece.

A fixing jig used for fixing workpieces, including:

A frame body, the two opposite inner side walls of the frame body are provided with connecting blocks with standard surfaces, and the standard surfaces are used to fit with the reference surface of the workpiece;

a support mechanism, there are multiple support mechanisms, and the multiple support mechanisms are arranged on both sides of the frame body;

an auxiliary member rotatably disposed on the support mechanism; and

an abutting mechanism, disposed at one end of the auxiliary member away from the supporting mechanism, for elastically abutting against the non-reference surface of the workpiece;

Wherein, the reference surface of the workpiece is placed in contact with the standard surface, and the auxiliary member drives the resisting mechanism to rotate relative to the supporting mechanism in a direction close to the workpiece, so that the resisting mechanism can elastically resist The non-reference surface of the workpiece is connected, and then the reference surface of the workpiece is fixed on the standard surface.

In one embodiment, the fixing fixture is used to be installed on a workbench, the support mechanism includes a base and a connecting rod, the base is used to connect with the workbench, and the connecting rod is arranged on the workbench. The base is fixedly connected with the frame, and the auxiliary member is rotatably arranged on the connecting rod.

In one embodiment, a limiting groove extending along the circumferential direction of the connecting rod is defined on the connecting rod, and the auxiliary member is clamped in the limiting groove.

In one of the embodiments, a limit rod for restricting the movement of the auxiliary member relative to the connecting rod is further included, the limit rod is disposed on the auxiliary member and abuts against the connecting rod.

In one embodiment, the connecting rod is further provided with a first clamping surface for fixing the connecting rod, and the first clamping surface is a plane.

In one of the embodiments, the abutting mechanism includes:

a pull rod, arranged at one end of the auxiliary member away from the support mechanism;

an indenter, disposed at one end of the tie rod, and used for abutting the non-reference surface of the workpiece; and

The spring is sleeved on the pull rod and elastically abuts between the pressure head and the pull rod.

In one embodiment, the auxiliary member is provided with a first connection hole, the pull rod is penetrated through the first connection hole and is movable relative to the auxiliary member, and the pull rod includes a small diameter portion and a fixed connection In the large-diameter part of the small-diameter part, the diameter of the large-diameter part is larger than the diameter of the first connecting hole, so as to limit the movement of the pull rod relative to the auxiliary member.

In one embodiment, the top of the frame body is provided with an escape groove.

In one embodiment, a plurality of the connecting blocks are symmetrically arranged on two opposite inner side walls of the through slot.

In one embodiment, the connecting block and the frame body are integrally formed.

In the above-mentioned fixing jig, by placing the reference surface of the workpiece against the standard surface of the connecting block, the auxiliary part drives the abutting mechanism to rotate relative to the supporting mechanism in a direction close to the workpiece, so that the abutting mechanism can elastically abut against the non-reference surface of the workpiece. Thus, the reference surface of the workpiece is fixed on the standard surface of the connecting block. When the above-mentioned fixed jig is placed on the worktable to detect the height of the workpiece, the detection equipment on the worktable can detect the height of the workpiece through the reference surface of the workpiece, so as to avoid the direct contact between the non-reference surface of the workpiece and the worktable. It interferes with the height detection of the workpiece, so that the height detection accuracy of the workpiece can be greatly improved.

Description of drawings

FIG. 1 is a schematic structural diagram of a fixing fixture in an embodiment of the present invention;

FIG. 2 is another schematic structural diagram of the fixing jig shown in FIG. 1 .

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. The preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 and FIG. 2 together. The fixing jig 100 in an embodiment of the present invention is used for fixing the workpiece 200 . The fixing jig 100 includes a frame body 110 , a supporting mechanism 130 , an auxiliary member 140 and a resisting mechanism 150 . Connecting blocks 120 with standard surfaces 122 are disposed on two opposite inner side walls of the frame body 110 . The standard surface 122 of the connection block 120 is used to fit with the reference surface 210 of the workpiece 200 . There are plural supporting mechanisms 130 . A plurality of support mechanisms 130 are disposed on both sides of the frame body 110 . The auxiliary member 140 is rotatably disposed on the support mechanism 130 . The abutting mechanism 150 is disposed at one end of the auxiliary member 140 away from the supporting mechanism 130 . The abutting mechanism 150 is used for elastically abutting against the non-reference surface 220 of the workpiece 200 . The reference surface 210 of the workpiece 200 is placed against the standard surface 122 of the connecting block 120, and the auxiliary member 140 drives the abutting mechanism 150 to rotate relative to the supporting mechanism 130 in a direction close to the workpiece 200, so that the abutting mechanism 140 can elastically abut the workpiece The non-reference surface 220 of the workpiece 200 is then fixed on the standard surface 210 of the connecting block 120 to fix the reference surface 210 of the workpiece 200 .

Specifically, in this embodiment, the fixing jig 100 is used to be installed on a workbench (not marked in the figure), so that the height of the workpiece 200 fixed on the fixing jig 100 can be detected by a detection device on the workbench. The cross-sectional size of the through slot 112 of the frame body 110 is larger than the size of the workpiece 200 , so that the inspection equipment on the workbench can pass through the through slot 112 to cover all areas of the workpiece 200 , thereby improving the height detection efficiency of the workpiece 200 .

The top of the frame body 110 can also be provided with an escape groove 114 . The setting of the avoidance groove 114 can play a certain avoidance effect on the height detection of the workpiece 200 to avoid interference between the detection equipment on the workbench and the frame body 110 .

There are plural connection blocks 120 . A plurality of connecting blocks 120 are symmetrically disposed on two opposite inner side walls of the through slot 112 . Through the symmetrical arrangement of the plurality of connecting blocks 120 , the fixing stability of the workpiece 200 by the fixing jig 100 can be improved, so that the height detection accuracy of the workpiece 200 can be improved. Specifically, in this embodiment, the standard surface 122 is disposed at the bottom end of the connection block 120 .

In addition, the connection block 120 is integrally formed with the frame body 110 . By arranging the connecting block 120 and the frame body 110 to be integrally formed, the overall processing difficulty of the fixing jig 100 can be reduced, and the processing efficiency of the fixing jig 100 can be improved.

The plurality of support mechanisms 130 are symmetrically arranged on both sides of the frame body 110 . Through the symmetrical arrangement of the plurality of supporting mechanisms 130 , the frame body 110 can be placed more stably on the workbench, so that the height detection accuracy of the workpiece 200 can be improved. The support mechanism 130 includes a base 131 and a connecting rod 132 . The base 131 is used to connect with the workbench. The base 131 is a cylindrical structure. The connecting rod 132 is disposed on the base 131 and is fixedly connected with the frame body 110 . The auxiliary member 140 is rotatably disposed on the connecting rod 132 .

Specifically, in this embodiment, the connecting rod 132 and the frame body 110 are connected by bolts. This connection method facilitates the disassembly and assembly between the connecting rod 132 and the frame body 110 , which not only improves the installation efficiency of the fixing fixture 100 , but also reduces the cost.

Specifically, a limiting slot 133 is defined on the connecting rod 132 . The limiting groove 133 extends along the circumferential direction of the connecting rod 132 . The auxiliary member 140 is clamped in the limiting groove 133 . Through the setting of the limiting groove 133 , the axial movement of the auxiliary member 140 relative to the connecting rod 132 can be restricted, so that the auxiliary member 140 can rotate relative to the connecting rod 132 stably.

It can be understood that, specifically in this embodiment, the above-mentioned fixing jig 100 may further include a limit rod 134 . The limiting rod 134 is used to limit the movement of the auxiliary member 140 relative to the connecting rod 132 . The limiting rod 134 is disposed on the auxiliary member 140 and abuts against the connecting rod 132 . Specifically, the arrangement of the connecting rod 132 can limit the movement of the auxiliary member 140 relative to the axial direction perpendicular to the connecting rod 132 , thereby further improving the rotational stability of the auxiliary member 140 relative to the connecting rod 132 .

A first clamping surface 135 may also be provided on the connecting rod 132 . The first clamping surface 135 is used for fixing the connecting rod 132 . The first clamping surface 135 is flat. There are two first clamping surfaces 135 . The two first clamping surfaces 135 are symmetrically distributed on both sides of the connecting rod 132 . Since the outer surface of the connecting rod 132 is an arc surface, it is relatively difficult for the external fixing device to clamp and fix the connecting rod 132 . The setting of the first clamping surface 135 facilitates the clamping and fixing of the connecting rod 132 by the external fixing device. , the fixing effect of the connecting rod 132 is improved, and the bolt connection between the connecting rod 132 and the frame body 110 is facilitated.

The resisting mechanism 150 includes a pull rod 151 , a pressing head 152 and a spring 153 . The pull rod 151 is disposed at one end of the auxiliary member 140 away from the support mechanism 130 . A first connection hole (not shown in the figure) may also be opened on the auxiliary member 140 . The pull rod 151 passes through the first connecting hole of the auxiliary member 140 and is movable relative to the auxiliary member 140 . The indenter 152 is disposed at one end of the pull rod 151 . The indenter 152 is used to abut against the non-reference surface 220 of the workpiece 200 . The distance between the indenter 152 and the workpiece 200 can be adjusted by the stretching action of the pull rod 151 , so as to facilitate the assembly of the workpiece 200 and the fixing jig 100 .

Specifically, in the embodiment, the indenter 152 is made of an adhesive material. The indenter 152 made of the superior glue material has good elasticity, which can prevent the indenter 152 from shaking relative to the auxiliary part 140 when the workpiece 200 is height detected, thereby causing scratches to the workpiece 200 , so as to protect the workpiece 200 to a certain extent.

The spring 153 is sleeved on the pull rod 151 and elastically abuts between the pressure head 152 and the pull rod 151 . Specifically, when the abutting mechanism 150 moves to the bottom of the workpiece 200 driven by the auxiliary member 140 , the spring 153 is in a compressed state, and the indenter 152 moves toward the workpiece 200 under the elastic force of the spring 153 , so that the indenter 152 moves in the direction close to the workpiece 200 . The 152 can abut and press the non-alignment surface 220 of the workpiece 200 , so as to fix the reference surface 210 of the workpiece 200 on the standard surface 122 of the connecting block 120 .

In addition, in other embodiments, by increasing the number of turns of the spring 153 , the elastic performance of the spring 153 can be increased, and the abutting effect of the indenter 152 on the non-reference surface 220 of the workpiece 200 can be further optimized.

It should be noted that, in this embodiment, the pull rod 151 includes a small diameter portion 151a and a large diameter portion 151b that is fixedly connected to the small diameter portion 151a. The small diameter portion 151a penetrates through the first connecting hole of the auxiliary member 140 . One end of the small-diameter portion 151a away from the large-diameter portion 151b is fixedly connected to the indenter 152 . The spring 153 is sleeved on the small diameter portion 151a. The large-diameter portion 151b is fixedly connected to the end of the small-diameter portion 151a away from the auxiliary member 140 . The diameter of the large-diameter portion 151b is larger than the diameter of the small-diameter portion 151a. The diameter of the large diameter portion 151b is larger than the diameter of the first connection hole of the auxiliary member 140 . The large diameter portion 151b can abut against the outer side wall of the auxiliary member 140 to limit the movement of the pull rod 151 relative to the auxiliary member 140 . With the arrangement of the large diameter portion 151b, the pull rod 151 can be prevented from falling off the auxiliary member 140 through the first connecting hole of the auxiliary member 140.

The specific operation process of the above-mentioned fixing jig 100 is as follows: the workpiece 200 is put in from the bottom end of the frame body 110 , and the reference surface 210 of the workpiece 200 is attached to the standard surface 122 of the connection block 120 . Pull down the pull rod 151 of the abutting mechanism 150 and rotate the auxiliary member 140 so that the auxiliary member 140 drives the abutting mechanism 150 to rotate relative to the connecting rod 132 of the supporting mechanism 130 in a direction close to the workpiece 200 . When the head 152 rotates to the bottom of the workpiece 200, the continuous stretching of the pull rod 151 is stopped, and the indenter 152 connected to one end of the pull rod 151 moves to the direction close to the workpiece 200 under the elastic force of the spring 153, so that the indenter 152 abuts and contacts the workpiece 200. The non-reference surface 220 of the workpiece 200 is pressed to fix the reference surface 210 of the workpiece 200 on the standard surface 122 of the connecting block 120 .

In the above-mentioned fixing fixture 100 , by placing the reference surface 210 of the workpiece 200 against the standard surface 122 of the connecting block 120 , the auxiliary member 140 drives the abutting mechanism 150 to rotate relative to the supporting mechanism 130 in a direction close to the workpiece 200 , so that the abutting mechanism 150 The non-reference surface 220 of the workpiece 200 can be elastically abutted, so as to fix the reference surface 210 of the workpiece 200 on the standard surface 122 of the connection block 120 . When the above-mentioned fixing jig 100 is placed on the worktable to detect the height of the workpiece 200 , the detection device on the worktable can detect the height of the workpiece 200 through the reference plane 210 of the workpiece 200 to avoid the non-reference plane 220 of the workpiece 200 . The direct contact with the worktable interferes with the height detection of the workpiece 200 , so that the height detection accuracy of the workpiece 200 can be greatly improved.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. a fixed fixture, used for the fixation of workpiece, to carry out height detection to described workpiece, it is characterized in that, comprising: A frame body, the two opposite inner side walls of the frame body are provided with connecting blocks with standard surfaces, and the standard surfaces are used to fit with the reference surface of the workpiece; Support mechanism, there are multiple support mechanisms, and a plurality of support mechanisms are arranged on both sides of the frame body. The non-working surface of the workpiece is not in direct contact with the worktable; the support mechanism includes a connecting rod, and the connecting rod is provided with a limit groove extending along the circumferential direction of the connecting rod; an auxiliary piece, which is rotatably arranged on the support mechanism, and the auxiliary piece is clamped in the limiting groove to limit the axial movement of the auxiliary piece relative to the connecting rod; and an abutting mechanism, disposed at one end of the auxiliary member away from the supporting mechanism, for elastically abutting against the non-reference surface of the workpiece; Wherein, the reference surface of the workpiece is placed in contact with the standard surface, and the auxiliary member drives the resisting mechanism to rotate relative to the supporting mechanism in a direction close to the workpiece, so that the resisting mechanism can elastically resist The non-reference surface of the workpiece is connected, and then the reference surface of the workpiece is fixed on the standard surface. 2 . The fixing jig according to claim 1 , wherein the fixing jig is used to be installed on a workbench, and the support mechanism comprises a base, and the base is used to connect with the workbench, 2 . The connecting rod is arranged on the base and is fixedly connected with the frame body, and the auxiliary member is rotatably arranged on the connecting rod. 3 . The fixing fixture according to claim 2 , further comprising a limit rod for restricting the movement of the auxiliary piece relative to the connecting rod, the limit rod being arranged on the auxiliary piece, 4 . and abuts with the connecting rod. 4 . The fixing jig according to claim 2 , wherein the connecting rod is further provided with a first clamping surface for fixing the connecting rod, and the first clamping surface is a plane. 5 . 5. The fixture according to claim 1, wherein the abutting mechanism comprises: a pull rod, arranged at one end of the auxiliary member away from the support mechanism; an indenter, disposed at one end of the tie rod, and used for abutting the non-reference surface of the workpiece; and The spring is sleeved on the pull rod and elastically abuts between the pressure head and the pull rod. 6 . The fixing jig according to claim 5 , wherein a first connection hole is formed on the auxiliary member, and the pull rod penetrates through the first connection hole and is movable relative to the auxiliary member. 7 . . 7 . The fixture according to claim 6 , wherein the pull rod comprises a small diameter portion and a large diameter portion fixedly connected to the small diameter portion, and the diameter of the large diameter portion is larger than the first connection hole. 8 . diameter to limit the movement of the pull rod relative to the auxiliary piece. 8 . The fixing jig according to claim 2 , wherein the top end of the frame body is provided with an escape groove. 9 . 9 . The fixing jig according to claim 1 , wherein a plurality of the connecting blocks are symmetrically arranged on two opposite inner side walls of the through groove of the frame body. 10 . 10 . The fixture according to claim 1 , wherein the connecting block and the frame are integrally formed. 11 .

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