CN211306126U

CN211306126U - Positioning fixture of arm for accessory installation

Info

Publication number: CN211306126U
Application number: CN201922326860.5U
Authority: CN
Inventors: 张灿文; 沈虹
Original assignee: Shenzhen Ruofette Technology Co ltd
Current assignee: Shenzhen Ruofette Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-21
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a positioning fixture of arm is used in accessory installation belongs to mounting fixture technical field, and it includes the workstation, and the last fixed surface of workstation is provided with mutual just right fixed subassembly, places the vertical work piece with workstation upper surface contact between the fixed subassembly that is just right each other, and horizontal work piece has been placed to the one end of vertical work piece, and horizontal work piece is placed with vertical work piece is perpendicular, and horizontal work piece's both sides are provided with mutual just right locating component, and fixed subassembly is provided with the clamp with workstation fixed connection along one side of vertical work piece length direction, horizontal work piece's both ends are provided with a set of mutual just right piece that blocks, block piece and workstation upper surface connection, the utility model discloses have the effect that improves accessory mounted position accuracy.

Description

Positioning fixture of arm for accessory installation

Technical Field

The utility model belongs to the technical field of the technique of sectional fixture and specifically relates to a positioning fixture of arm is used in accessory installation.

Background

At present, when a workpiece is machined, in order to enable the surface of the workpiece to meet the technical requirements of size, geometric shape, mutual position precision with other surfaces and the like specified in a drawing, the workpiece needs to be clamped, positioned, firmly clamped and clamped before machining.

The existing positioning clamp can refer to chinese patent with publication number CN207189494U, the mechanical arm positioning clamp device comprises a workbench and a plurality of clamping hands arranged on the workbench, wherein two sides of each clamping hand are respectively provided with a group of positioning blocks, a groove body is formed between the two positioning blocks, the groove bodies between the two groups of positioning blocks are vertically connected to form a hollow part, the outer sides of the two groups of positioning blocks are respectively provided with two groups of first positioning pins, the two sides of the hollow part are respectively provided with the first positioning pin, the workbench is horizontally provided with a plurality of parallel second positioning pins, a plurality of groups of the second positioning pins are connected to form a positioning part, the positioning part is vertically arranged with the hollow part, the T-shaped workpiece is placed in the positioning part and the hollow part and comprises a horizontal workpiece and a vertical workpiece, and the horizontal workpiece and the vertical workpiece are both cuboid in shape. Through above-mentioned technical scheme, the arm is with the product location back, pulls the tong, and the vertical work piece that the tong will place in leaving the vacancy portion compresses tightly, and horizontal work piece is placed in location portion, and the second locating pin presss from both sides tightly horizontal work piece, then splices operation to horizontal work piece and vertical work piece for the position that needs the concatenation remains stable, can not appear the phenomenon that the splice position shifted because operating personnel's operation is unstable.

The above prior art solutions have the following drawbacks: in the positioning process, the first positioning pin and the clamping hand can enable the vertical workpiece to not shake in the horizontal direction and the vertical direction in the hollow part, the second positioning pin can only enable the horizontal workpiece to be clamped in the direction perpendicular to the horizontal workpiece and does not shake, but the horizontal workpiece still can move in the direction parallel to the horizontal workpiece, the splicing position is enabled to shift, and the precision of the splicing position is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a positioning fixture of arm is used in accessory installation, it has the effect that improves accessory mounted position accuracy.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a positioning fixture of arm for accessory installation, includes the workstation, the last fixed surface of workstation is provided with mutual just right fixed subassembly, places the vertical work piece with workstation upper surface contact between the fixed subassembly that is just right each other, and horizontal work piece has been placed to the one end of vertical work piece, and horizontal work piece is placed with vertical work piece is perpendicular, and horizontal work piece's both sides are provided with mutual just right locating component, and fixed subassembly is provided with the clamp with workstation fixed connection along one side of vertical work piece length direction, horizontal work piece's both ends are provided with a set of mutual just right piece that blocks, blocks piece and workstation upper surface connection.

By adopting the technical scheme, when the vertical workpiece and the horizontal workpiece are required to be spliced, the vertical workpiece is placed between the fixing assemblies which are opposite to each other by the mechanical arm, the fixing assemblies clamp the vertical workpiece, then the clamp is used for pressing the upper surface of the vertical workpiece, then the horizontal workpiece is placed between the positioning assemblies which are opposite to each other by the mechanical arm, the horizontal workpiece is clamped by the positioning assemblies, the horizontal workpiece is fixed at two ends of the horizontal workpiece by the blocking blocks, the positions, which are required to be spliced, of the vertical workpiece and the horizontal workpiece are kept stable, the phenomenon that the splicing position is shifted due to unstable operation of an operator can be avoided, and the accuracy of the mounting position of the accessory is improved.

The present invention may be further configured in a preferred embodiment as: the bottom of the blocking block is provided with a sliding assembly which drives the blocking block to slide on the workbench.

Through adopting above-mentioned technical scheme, when using the arm to place horizontal workpiece between locating component, locating component presss from both sides horizontal workpiece tightly, when horizontal workpiece's length changes, adjust the slip subassembly, the slip subassembly drives the piece that blocks of horizontal workpiece moving direction both sides and slides to pressing from both sides tight horizontal workpiece along the moving direction of horizontal workpiece, make horizontal workpiece place more stable, according to the difference of horizontal workpiece length, the slip blocks the piece, can make the horizontal workpiece of different length all can be blocked the piece and press from both sides tightly, the convenience of fixed horizontal workpiece has been improved.

The present invention may be further configured in a preferred embodiment as: the sliding assembly comprises a moving sleeve, a guide rod and a bidirectional screw rod, the upper surface of the moving sleeve is connected with a blocking block, a moving groove is formed in the upper surface of the workbench, the moving groove is located below a horizontal workpiece and is perpendicular to the width direction of the horizontal workpiece, the guide rod is fixedly connected with the inside of the moving groove, the bidirectional screw rod is rotatably connected with the inside of the moving groove, the guide rod and the bidirectional screw rod are on the same horizontal plane, the guide rod is parallel to the bidirectional screw rod, the moving sleeve is in threaded connection with the bidirectional screw rod, the thread turning directions of the bidirectional screw rod and the two moving sleeves are opposite, the moving sleeve is in sliding connection with the guide rod, and the moving sleeve is parallel to the length direction of the horizontal workpiece along the sliding direction of the guide.

Through adopting above-mentioned technical scheme, when the piece is blockked in the different removal of needs according to horizontal workpiece length, rotatory two-way lead screw, two-way lead screw drives the removal cover at horizontal workpiece both ends and carries out the slip in opposite directions along the guide bar, slide to blockking piece and horizontal workpiece butt, and when compressing tightly horizontal workpiece, stop rotatory two-way lead screw, because two-way lead screw has the function of auto-lock, can make and block the piece and keep not taking place to remove in the position of pressing from both sides tight horizontal workpiece, vertical work piece and horizontal workpiece splice position's accuracy has been improved, accessory mounted position's accuracy has been improved.

The present invention may be further configured in a preferred embodiment as: the movable sleeve is detachably connected with the blocking block.

Through adopting above-mentioned technical scheme, if the length of horizontal workpiece extends along self direction of movement always, can be with blockking that the piece is pulled down from removing the cover for blockking that the piece can not influence placing of horizontal workpiece, can make horizontal workpiece hug closely the workstation upper surface, improved the accuracy of vertical work piece and horizontal workpiece concatenation position, improved the accuracy of accessory mounted position.

The present invention may be further configured in a preferred embodiment as: the upper surface of the moving sleeve and the upper surface of the workbench are positioned on the same horizontal plane.

Through adopting above-mentioned technical scheme, after removing the cover and dismantling, the upper surface that removes the cover is located same horizontal plane with the upper surface of workstation for remove the cover and can not take place to interfere with horizontal workpiece, block placing of horizontal workpiece, horizontal workpiece can hug closely the workstation upper surface and place, has improved the accuracy of vertical work piece and horizontal workpiece splice position, has improved the accuracy of accessory mounted position.

The present invention may be further configured in a preferred embodiment as: and one side of the blocking block, which faces the horizontal workpiece, is provided with a protective pad.

Through adopting above-mentioned technical scheme, when blockking that piece and horizontal workpiece butt and compress tightly horizontal workpiece, block that piece and horizontal workpiece can produce the effort mutually, the protection pad can reduce horizontal workpiece to the wearing and tearing that block the piece, improves the life that blocks the piece, can reduce horizontal workpiece's wearing and tearing simultaneously, improves horizontal workpiece's roughness.

The present invention may be further configured in a preferred embodiment as: the positioning assembly comprises a positioning plate and a positioning bolt, the positioning plate is provided with a positioning hole, the positioning hole is opposite to the horizontal workpiece, the positioning bolt is in inserting fit with the positioning hole, and the positioning bolt is parallel to the workbench.

Through adopting above-mentioned technical scheme, after the arm places horizontal workpiece between the locating component just to each other, the rotational positioning bolt makes mutual just to locating bolt and horizontal workpiece butt, plays the effect of location to horizontal workpiece, simultaneously according to the difference of horizontal workpiece specification, horizontal workpiece's width is also different, can adjust the length that locating bolt stretches out the locating hole for the horizontal workpiece of different widths all can be fixed by the locating component, has improved the convenience of fixed horizontal workpiece.

The present invention may be further configured in a preferred embodiment as: the placing groove is formed in the upper surface of the workbench, is located on one side, close to the vertical workpiece, of the moving groove, is parallel to the moving groove, and the dividing ruler is placed in the placing groove.

Through adopting above-mentioned technical scheme, aim at the scale on the scale with the position that vertical work piece need splice, then move horizontal workpiece along the scale and aim at the scale on the scale to the position that horizontal work piece needs the concatenation, make the position that horizontal work piece needs the concatenation aim at with the position that vertical work piece needs the concatenation, can observe through the scale whether horizontal work piece and vertical work piece need the position of concatenation accurate, improved the convenience of aiming at the position that vertical work piece and horizontal work piece need the concatenation.

To sum up, the utility model discloses a beneficial technological effect does:

1. the upper surface of the workbench is fixedly provided with fixing assemblies which are opposite to each other, a vertical workpiece which is in contact with the upper surface of the workbench is placed between the fixing assemblies which are opposite to each other, one end of the vertical workpiece is placed with a horizontal workpiece, the horizontal workpiece is placed perpendicular to the vertical workpiece, two sides of the horizontal workpiece are provided with positioning assemblies which are opposite to each other, one side of the fixing assembly along the length direction of the vertical workpiece is provided with a clamp which is fixedly connected with the workbench, two ends of the horizontal workpiece are provided with a group of blocking blocks which are opposite to each other, and the blocking blocks are in sliding connection with the upper surface of the workbench, so that the effect of improving the;

2. the protective pad is arranged on one side, facing the horizontal workpiece, of the barrier block, so that the service life of the barrier block is prolonged, meanwhile, the abrasion of the horizontal workpiece is reduced, and the flatness of the horizontal workpiece is improved;

3. through set up the standing groove at the workstation upper surface, the standing groove is located the one side that the shifting chute is close to vertical work piece, and the standing groove is parallel with the shifting chute, has placed the scale in the standing groove, reaches the effect that improves the convenience of the position that needs the concatenation of aligning vertical work piece and horizontal work piece.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged partial schematic view of portion B of FIG. 1;

FIG. 4 is a schematic view of a structure intended to highlight the moving slots and the placing slots;

fig. 5 is a partially enlarged schematic view of a portion C in fig. 4.

In the figure, 1, a workbench; 11. supporting legs; 12. a moving groove; 13. a graduated scale; 14. a placement groove; 2. a fixing assembly; 21. a fixing plate; 211. a fixing hole; 22. fixing the bolt; 23. disassembling the plate; 3. a vertical workpiece; 4. clamping; 5. a positioning assembly; 51. positioning a plate; 511. positioning holes; 52. positioning the bolt; 6. a horizontal workpiece; 7. a blocking block; 71. a protection pad; 8. moving the sleeve; 81. a guide rod; 82. a bidirectional screw rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a positioning fixture of arm is used in accessory installation, comprises a workbench 1, the fixed supporting leg 11 that is provided with in lower extreme four corners department of workstation 1, the upper surface of workstation 1 is provided with mutual just right fixed subassembly 2, vertical work piece 3 has been placed between mutual just right fixed subassembly 2, be provided with clamp 4 with workstation 1 fixed connection in fixed subassembly 2 along one side of 3 length direction of vertical work piece, horizontal work piece 6 has been placed to the one end of vertical work piece 3, horizontal work piece 6 is placed with vertical work piece 3 perpendicularly, the both sides of horizontal work piece 6 are provided with mutual just right locating component 5, the both ends of horizontal work piece 6 are provided with blocks piece 7, the lower extreme that blocks piece 7 is provided with the drive and blocks piece 7 at the gliding sliding component of workstation 1 upper surface. When the vertical workpiece 3 and the horizontal workpiece 6 need to be spliced, the vertical workpiece 3 is placed between the fixing assemblies 2 which are opposite to each other by the mechanical arm, the fixing assemblies 2 clamp the vertical workpiece 3 tightly, then the clamp 4 is used for pressing the upper surface of the vertical workpiece 3, then the horizontal workpiece 6 is placed between the positioning assemblies 5 which are opposite to each other by the mechanical arm, the position, needing to be spliced, of the horizontal workpiece 6 is aligned to the position, needing to be spliced, on the vertical workpiece 3, the horizontal workpiece 6 is clamped by the positioning assemblies 5, then the sliding assembly is adjusted, the blocking block 7 is abutted to and pressed against the horizontal workpiece 6, the phenomenon that the splicing position is shifted due to unstable operation of an operator is avoided, and the accuracy of the installation position of the accessory is improved.

As shown in fig. 1, the quantity that mutually just right fixed subassembly 2 set up in this embodiment is two sets of, combine fig. 2, fixed subassembly 2 includes fixed plate 21, fixed plate 21 sets up with 1 upper surface of workstation, fixed plate 21 has seted up fixed orifices 211 towards one side of vertical work piece 3, fixed orifices 211 is the through-hole, the axis direction of fixed orifices 211 is perpendicular with the length direction of vertical work piece 3, and fixed orifices 211 is just to vertical work piece 3, fixed orifices 211 interpolation is equipped with fixing bolt 22, when vertical work piece 3 is placed between mutually just to fixed plate 21, through adjusting fixing bolt 22 towards the length that vertical work piece 3 stretches out fixed orifices 211, make the vertical work piece 3 of the different specifications of placing can both be supported tightly by fixing bolt 22, the convenience of vertical work piece 3 fixed has been improved. Fixed plate 21 is provided with dismantlement board 23 with the fixed position of workstation 1 upper surface connection, dismantlement board 23 and fixed plate 21 integrated into one piece, and dismantlement board 23 and workstation 1 upper surface parallel, and dismantlement board 23 is fixed through the bolt with workstation 1 upper surface, and when needs are changed fixed plate 21, can change through dismantling the bolt, has improved the convenience of changing fixed subassembly 2.

As shown in fig. 1, in the present embodiment, the number of the positioning assemblies 5 facing each other is two, with reference to fig. 3, the positioning assemblies 5 include positioning plates 51, the positioning plates 51 are perpendicular to the upper surface of the workbench 1, one side of the positioning plates 51 facing the horizontal workpiece 6 is provided with positioning holes 511, the positioning holes 511 are through holes, the axial direction of the positioning holes 511 is perpendicular to the length direction of the horizontal workpiece 6, the positioning holes 511 face the horizontal workpiece 6, positioning bolts 52 are inserted into the positioning holes 511, when the horizontal workpiece 6 is placed between the positioning plates 51 facing each other, the positioning bolts 52 extend out of the positioning holes 511 towards the horizontal workpiece 6, so that the placed horizontal workpieces 6 of different specifications can be tightly abutted by the positioning bolts 52, and convenience in fixing the horizontal workpiece 6 is improved.

As shown in fig. 4, the upper surface of the worktable 1 is provided with a moving slot 12, and referring back to fig. 1, the moving slot 12 is located below the horizontal workpiece 6, and the moving slot 12 is perpendicular to the width direction of the horizontal workpiece 6, the width of the moving slot 12 is smaller than the width of the horizontal workpiece 6, when the horizontal workpiece 6 is placed on the upper surface of the worktable 1, the moving slot 12 does not affect the placement of the horizontal workpiece 6.

As shown in fig. 5, the sliding assembly includes a moving sleeve 8, a guide rod 81 and a bidirectional screw 82, the bidirectional screw 82 is located in the moving slot 12, the bidirectional screw 82 is perpendicular to the width direction of the horizontal workpiece 6, the bidirectional screw 82 is rotatably connected to the moving slot 12, the guide rod 81 is located in the moving slot 12, the guide rod 81 and the bidirectional screw 82 are arranged in parallel in the same horizontal plane, the moving sleeves 8 at two ends of the horizontal workpiece 6 are in threaded connection with the bidirectional screw 82, the bidirectional screw 82 is opposite to the thread direction of the two moving sleeves 8, the moving sleeves 8 are slidably connected to the guide rod 81, the bidirectional screw 82 is rotated, the bidirectional screw 82 drives the moving sleeves 8 at two ends of the horizontal workpiece 6 to slide oppositely along the guide rod 81, and the sliding direction is parallel to the length direction of the horizontal workpiece 6.

As shown in fig. 5, the upper surface of the movable sleeve 8 is detachably connected with the blocking block 7 through a bolt, if the length of the horizontal workpiece 6 is greater than that of the movable groove 12, the blocking block 7 can be detached from the movable sleeve 8, so that the blocking block 7 does not affect the placement of the horizontal workpiece 6, and the upper surface of the movable sleeve 8 and the upper surface of the workbench 1 are located on the same horizontal plane, after the blocking block 7 is removed, the movable sleeve 8 does not interfere with the horizontal workpiece 6 to block the placement of the horizontal workpiece 6, so that the horizontal workpiece 6 can be placed tightly close to the upper surface of the workbench 1, so that the position where the horizontal workpiece 6 needs to be spliced is aligned to the position where the vertical workpiece 3 needs to be spliced, the accuracy of the splicing position of the vertical workpiece 3 and the horizontal workpiece 6 is improved, and the accuracy of the installation position of.

As shown in fig. 1 and 5, the side face of the blocking block 7 abutting against the horizontal workpiece 6 is vertically arranged, in this embodiment, the blocking block 7 is in a cube shape, and because the side face of the blocking block 7 abutting against the horizontal workpiece 6 is vertically arranged, the contact area between the blocking block 7 and the horizontal workpiece 6 can be increased, and the abutting effect of the blocking block 7 on the horizontal workpiece 6 is improved. And the side of the blocking block 7 facing the horizontal workpiece 6 is bonded with a protection pad 71, when the blocking block 7 abuts against the horizontal workpiece 6 and presses the horizontal workpiece 6, the blocking block 7 and the horizontal workpiece 6 generate acting force mutually, the protection pad 71 can reduce the abrasion of the horizontal workpiece 6 to the blocking block 7, the service life of the blocking block 7 is prolonged, meanwhile, the abrasion of the horizontal workpiece 6 can be reduced, and the flatness of the horizontal workpiece 6 is improved.

As shown in fig. 4, a graduated scale 13 is arranged on one side of the horizontal workpiece 6 spliced with the vertical workpiece 3, with reference to fig. 5, a placing groove 14 is formed in the upper surface of the workbench 1, the placing groove 14 is parallel to the moving groove 12, the graduated scale 13 is placed in the placing groove 14, the upper surface of the graduated scale 13 is on the same horizontal plane as the upper surface of the workbench 1, the graduated scale 13 is parallel to the horizontal workpiece 6 in the length direction, by arranging the graduated scale 13, the graduation of the graduated scale 13 can be aligned according to the position of the vertical workpiece 3 to be spliced, the position of the horizontal workpiece 6 to be spliced is aligned to the graduation, the accidental error of an operator when the position to be spliced is aligned is reduced, and the accuracy of the installation position of the accessory is improved.

The implementation principle of the embodiment is as follows: when the accessories need to be installed, a mechanical arm is used for placing the vertical workpiece 3 between two groups of fixing plates 21 which are opposite to each other, the fixing bolts 22 are adjusted, the fixing bolts 22 enable the vertical workpiece 3 to be abutted tightly, then the clamp 4 is used for tightly pressing the upper surface of the vertical workpiece 3, then the mechanical arm is used for placing the horizontal workpiece 6 between two groups of positioning plates 51 which are opposite to each other, according to the scales of the graduated scale 13 aligned with the positions, needing to be spliced, of the vertical workpiece 3, the horizontal workpiece 6 is moved, the positions, needing to be spliced, of the horizontal workpiece 6 are aligned with the scales on the graduated scale 13, then the bidirectional screw 82 is rotated, the moving sleeves 8 at the two ends of the horizontal workpiece 6 drive the blocking blocks 7 to slide oppositely along the guide rods 81 to be abutted against and tightly pressed against the horizontal workpiece 6, then the splicing procedure is carried out on the positions, needing to be spliced, of the vertical, the accuracy of the splicing position of the vertical workpiece 3 and the horizontal workpiece 6 is improved, and the accuracy of the mounting position of the accessory is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a positioning fixture of arm for accessory installation, including workstation (1), the last fixed surface of workstation (1) is provided with fixed subassembly (2) just right each other, place vertical work piece (3) with workstation (1) upper surface contact between fixed subassembly (2) just right each other, horizontal work piece (6) are placed to the one end of vertical work piece (3), horizontal work piece (6) are placed perpendicularly with vertical work piece (3), the both sides of horizontal work piece (6) are provided with locating component (5) just right each other, fixed subassembly (2) are provided with clamp (4) with workstation (1) fixed connection along one side of vertical work piece (3) length direction, its characterized in that: two ends of the horizontal workpiece (6) are provided with a group of mutually opposite blocking blocks (7), and the blocking blocks (7) are connected with the upper surface of the workbench (1).

2. The positioning jig for a robot arm for mounting accessories of claim 1, wherein: the bottom of the stop block (7) is provided with a sliding component which drives the stop block (7) to slide on the workbench (1).

3. The positioning jig for a robot arm for mounting accessories of claim 2, wherein: the sliding assembly comprises a moving sleeve (8), a guide rod (81) and a bidirectional screw (82), the upper surface of the moving sleeve (8) is connected with the blocking block (7), the upper surface of the workbench (1) is provided with a moving groove (12), the moving groove (12) is positioned below the horizontal workpiece (6), the moving groove (12) is vertical to the width direction of the horizontal workpiece (6), the guide rod (81) is fixedly connected with the inside of the moving groove (12), the bidirectional screw rod (82) is rotatably connected with the inside of the moving groove (12), the guide rod (81) and the bidirectional screw rod (82) are positioned on the same horizontal plane, the guide rod (81) is parallel to the bidirectional screw rod (82), the moving sleeve (8) is in threaded connection with the bidirectional screw rod (82), the screw thread turning directions of the two-way screw rod (82) and the two moving sleeves (8) are opposite, the moving sleeves (8) are connected with the guide rod (81) in a sliding way, and the sliding direction of the moving sleeve (8) along the guide rod (81) is parallel to the length direction of the horizontal workpiece (6).

4. The positioning jig for a robot arm for mounting accessories of claim 3, wherein: the movable sleeve (8) is detachably connected with the stop block (7).

5. The positioning jig for a robot arm for mounting accessories of claim 3, wherein: the upper surface of the movable sleeve (8) and the upper surface of the workbench (1) are positioned on the same horizontal plane.

6. The positioning jig for a robot arm for mounting accessories of claim 1, wherein: and a protective pad (71) is arranged on one side, facing the horizontal workpiece (6), of the stop block (7).

7. The positioning jig for a robot arm for mounting accessories of claim 1, wherein: the positioning assembly (5) comprises a positioning plate (51) and a positioning bolt (52), a positioning hole (511) is formed in the positioning plate (51), the positioning hole (511) is opposite to the horizontal workpiece (6), the positioning bolt (52) is in plug-in fit with the positioning hole (511), and the positioning bolt (52) is parallel to the workbench (1).

8. The positioning jig for a robot arm for mounting accessories of claim 1, wherein: a placing groove (14) is formed in the upper surface of the workbench (1), the placing groove (14) is located on one side, close to the vertical workpiece (3), of the moving groove (12), the placing groove (14) is parallel to the moving groove (12), and a graduated scale (13) is placed in the placing groove (14).