A workbench facilitating the installation of workpieces

Abstract

The present invention discloses a workbench facilitating the installation of workpieces, which includes a machining center housing and a rotating device arranged inside the machining center. The rotating device is composed of a rotating base, a swing arm and a fixed base. A fixed disk is provided on the swing arm, and a fixing structure is arranged on the fixed disk. The fixing structure is located at the middle position of the concentrated fixing grooves. The fixing structure is composed of a positioning seat, a positioning sleeve and a rotating seat. The workbench facilitating the installation of workpieces adopts a way of rotationally clamping the workpiece, which can not only make cylindrical or elliptical-shaped workpieces within a certain range be clamped by the clamping piece. The workpiece can be flexibly clamped by the clamping piece, and it can be protected when the workpiece is fixed, and can play a buffering and protecting effect on the workpiece. It can also ensure the rapid installation and disassembly of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technology of the workbench of a numerical control center, and particularly to a workbench facilitating the installation of workpieces. Background Art

[0002] With the development of society, people have put forward higher and higher requirements for the machining accuracy of machine parts. In order to allow measuring equipment to measure workpieces, it is necessary to design a clamping or fixing device suitable for workpieces, so that the correct clamping position of the workpiece can be defined and the workpiece to be measured can be stably held. In particular, for cylindrical parts with a relatively small axial extension length, this poses a great design difficulty for the fixing device.

[0003] In the prior art, there is known a workpiece fixing device which adopts a three-jaw chuck structure to clamp the workpiece between three jaws. By rigid tightening, slight imprints will be left on the surface of the workpiece, resulting in a decrease in accuracy.

[0004] CN213591849U discloses a full-automatic milling machine facilitating the fixing of workpieces, which uses an elliptical cam to push a jaw assembly and then elastically clamps through a first spring. However, during machining, the first spring will be pushed and compressed in the reverse direction, resulting in the loosening of the workpiece. Summary of the Invention

[0005] In order to solve the defects existing in the above prior art, the present invention provides a workbench facilitating the installation of workpieces.

[0006] The technical solution of the present invention is realized as follows:

[0007] A workbench facilitating the installation of workpieces, characterized by comprising:

[0008] A machining center housing,

[0009] A rotating device arranged inside the machining center housing, the rotating device being composed of a rotating seat, a swing arm and a fixed seat. The swing arm is located between the rotating seat and the fixed seat. A fixed disk is provided on the swing arm, and a plurality of fixing grooves are provided on the fixed disk. The fixing grooves are evenly dispersed from the center to the outside.

[0010] A fixing structure mounted on the fixed disk, the fixing structure being located at the middle position where the fixing grooves are concentrated. The fixing structure is composed of a positioning seat, a positioning sleeve and a rotating seat. The positioning seat is fixed on the fixed disk. A placing area for placing a workpiece is provided in the middle of the positioning seat. The positioning sleeve is arranged in the placing area. A through chamber is formed by hollowing out the middle of the positioning sleeve. The rotating seat is mounted in the placing area and is located above the positioning sleeve.

[0011] The positioning seat, positioning sleeve and rotating seat are connected by a plurality of clamping members for clamping workpieces. The upper end of the clamping member is placed in the rotating seat, and the lower end passes through the positioning sleeve and is placed in the positioning seat.

[0012] An arc-shaped groove is provided on the rotating seat, and the upper end of the clamping member is located in the arc-shaped groove. A strip-shaped hole is provided on the positioning sleeve, and a vertical groove is provided on the positioning seat. The positions of the vertical groove and the strip-shaped hole correspond to each other. The lower end of the clamping member passes through the strip-shaped hole and is placed in the vertical groove. When the rotating seat is rotated, the lower end of the clamping member moves upward from the lower ends of the strip-shaped hole and the vertical groove, and the upper end of the clamping member moves from one end of the arc-shaped groove to the other end.

[0013] A plurality of one-way limiting grooves are provided on the positioning seat, and symmetrical adjusting structures matching the one-way limiting grooves are provided on the rotating seat.

[0014] In the present invention, a first placement groove is provided at one end of the arc-shaped groove, a first retaining block is provided in the first placement groove, a second placement groove is provided in the vertical groove, and a second retaining block is provided in the second placement groove.

[0015] In the present invention, the end of the arc-shaped groove close to the first placement groove is the N end, and the end far from the first placement groove is the M end. The distance from the N end to the inner wall of the placement area is greater than the distance from the M end to the inner wall of the placement area.

[0016] In the present invention, the clamping member is composed of a first extension section, a first vertical section, a second vertical section, a first contact section, a connecting section, a second contact section, a third vertical section, a fourth vertical section and a second extension section. Ball heads are provided on the first extension section and the second extension section, and the length of the first extension section is greater than the length of the second extension section.

[0017] In the present invention, a first deformation area is formed between the first vertical section and the second vertical section, a second deformation area is formed between the second vertical section and the first contact section, a third deformation area is formed between the third vertical section and the second contact section, and a fourth deformation area is formed between the third vertical section and the fourth vertical section.

[0018] In the present invention, the connecting section is arc-shaped and bends from both ends towards the middle of the first vertical section and the fourth vertical section.

[0019] In the present invention, an installation hole is provided at the lower end of the positioning seat. The installation hole is communicated with the vertical groove. A first spring and a bolt are provided in the installation hole. The lower end of the first spring contacts the bolt, and the upper end contacts the ball head on the second extension section.

[0020] In the present invention, the included angle between the perpendicular line of the second extension section and the center line of the second contact section is S, and the included angle range of S is 0-15°.

[0021] In the present invention, one end of the one-way limiting groove is a straight wall surface, the other end is an inclined wall surface, and there is a deepening groove in the middle.

[0022] In the present invention, the adjusting structure is provided with a limiting plate, a rocker, symmetric second springs, and fixing blocks. The rocker is arranged between the symmetric fixing blocks. The rocker is provided with a first hinge rod and a second hinge rod. The first hinge rod is located at one end of the rocker. The rocker is hinged to the upper end of the limiting plate through the first hinge rod. The second spring is located between the rocker and the rotating seat. The rotating seat is provided with a movable groove. The limiting plate passes through the movable groove and is placed in the deepening groove in the one-way limiting groove.

[0023] Implementing the workbench for facilitating the installation of workpieces of the present invention has the following beneficial effects: The workbench for facilitating the installation of workpieces adopts a method of rotationally clamping the workpiece, which can not only clamp workpieces that are cylindrical or tend to be elliptical within a certain range by the clamping member. It can achieve the flexible clamping of the workpiece by the clamping member, and can protect the workpiece when it is fixed, and can play a buffering and protecting effect on the workpiece. It can also ensure the rapid installation and disassembly of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the workbench for facilitating the installation of workpieces of the present invention;

[0025] Figure 2 is Figure 1 the internal structural diagram of;

[0026] Figure 3 is Figure 2 the partial enlarged view at A in;

[0027] Figure 4 is Figure 3 the schematic structural diagram of the fixing structure in;

[0028] Figure 5 is Figure 4 the top view of;

[0029] Figure 6 is Figure 5 the partial enlarged view at B-B in;

[0030] Figure 7 is Figure 4 the exploded view of;

[0031] Figure 8 is Figure 7 the schematic structural diagram of the rotating seat in;

[0032] Figure 9 is Figure 8 the sectional view of;

[0033] Figure 10 is Figure 9 the schematic diagram of the adjusting structure in

[0034] Figure 11 is Figure 7 the schematic diagram of the positioning sleeve structure in

[0035] Figure 12 is Figure 7 the schematic diagram of the clamping member and the support rod structure in

[0036] Figure 13 is Figure 12 the schematic diagram of the clamping member structure in

[0037] Figure 14 is Figure 13 the schematic diagram of the structure in another direction of

[0038] Figure 15 is Figure 7 the schematic diagram of the first holding block, the second holding block and the positioning seat structure in

[0039] Figure 16 is Figure 15 the schematic diagram of the first holding block and the second holding block structure in

[0040] Figure 17 is Figure 15 the sectional view of the positioning seat structure in

[0041] Figure 18 is Figure 17 the partial enlarged view at C in

[0042] Figure 19 is the schematic diagram of the installation structure of the positioning seat, the positioning sleeve and the clamping member in the present invention;

[0043] Figure 20 is the schematic diagram of the installation structure of the rotating seat, the positioning sleeve and the clamping member in the present invention.

[0044] In the figure: machining center housing 1, rotating device 2, rotating base 3, swing arm 4, fixed base 5, fixed disk 6, fixing groove 7, bolt 8, fixing structure 9, positioning seat 10, positioning sleeve 11, rotating seat 12, placement area 13, moving hole 14, first step 15, second step 16, first inclined surface 17, plain bearing 18, clamping member 19, vertical groove 20, first extension section 21, arc groove 22, first contact section 23, second contact section 24, connecting section 25, strip hole 26, first insertion groove 27, first retaining block 28, second insertion groove 29, second retaining block 30, second extension section 31, ball head 32, tubular groove 33, tubular part 34, rotating part 35, mating part 36, placement opening 37, second inclined surface 38, handle 39, annular groove 40, adjusting structure 41, limiting plate 42, one-way limiting groove 43, annular part 44, mating cylinder 45, placement space 46, small hole 47, disk part 48, cylindrical part 49, support part 50, threaded hole 51, support rod 52, threaded part 53, hexagonal hole 54, first vertical section 541, second vertical section 55, third vertical section 56, fourth vertical section 57, first deformation area 58, second deformation area 59, third deformation area 60, fourth deformation area 61, mounting hole 62, first spring 63, seesaw 64, second spring 65, fixed block 66, inclined wall 67, second hinge rod 68, moving groove 69, deepening groove 70, straight wall 71. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0046] As Figures 1 to 20 shown, this workbench for facilitating the installation of workpieces in the present invention includes a machining center housing 1 and a rotating device 2 arranged inside the machining center housing 1. The rotating device 2 is used for machining workpieces at different angles.

[0047] The rotating device 2 is composed of a rotating base 3, a swing arm 4 and a fixed base 5. The swing arm 4 is located between the rotating base 3 and the fixed base 5. A fixed disk 6 is provided on the swing arm 4. Multiple fixing grooves 7 are provided on the fixed disk 6, and the fixing grooves 7 are evenly dispersed from the center to the outside. By placing the bolt 8 in the fixing groove 7 and then fixing the fixing structure 9 on the fixed disk 6.

[0048] The fixing structure 9 is installed on the fixed disk 6. The fixing structure 9 is located at the middle position where the fixing grooves 7 are concentrated. When the rotating base 3 drives the swing arm 4 to rotate, it can drive the fixed disk 6 on the swing arm 4, and its fixing structure 9 will also rotate together with the fixed disk 6.

[0049] The fixed structure 9 is composed of a positioning seat 10, a positioning sleeve 11 and a rotating seat 12. The positioning seat 10 is fixed on the fixed disk 6. There is a placement area 13 for placing workpieces in the middle of the positioning seat 10, and the positioning sleeve 11 is arranged in the placement area 13. The rotating seat 12 is installed in the placement area 13 and is located at the upper end of the positioning sleeve 11.

[0050] A first step 15 and a second step 16 are formed at the placement area 13. The first step 15 is located at the upper end of the second step 16. The diameter of the first step 15 is larger than that of the second step 16. A downward first inclined surface 17 is provided at the first step 15. The first step 15 cooperates with the rotating seat 12 for placement, and the second step 16 is used for cooperating with the positioning sleeve 11 for placement. And a plain bearing 18 is provided between the positioning sleeve 11 and the rotating seat 12, which is beneficial for the rotating seat 12 to rotate on the positioning sleeve 11.

[0051] The positioning seat 10, the positioning sleeve 11 and the rotating seat 12 are connected by a plurality of clamping members 19 for clamping workpieces. The upper end of the clamping member 19 is placed in the rotating seat 12, and the lower end passes through the positioning sleeve 11 and is placed in the positioning seat 10. After rotating the rotating seat 12, the upper end of the clamping member 19 can be driven by the rotating seat 12 to move towards the M end, so that the lower end of the clamping member 19 moves upward from the lower end of the vertical groove 20. And the first extension section 21 is pushed by the arc-shaped groove 22 to move towards the middle of the placement area 13, so as to keep the workpiece placed in the placement area 13 clamped and fixed.

[0052] In addition, rubber buffer sleeves can be added to the first contact section 23, the second contact section 24 and the connecting section 25 to better protect precision workpieces.

[0053] An arc-shaped groove 22 is provided on the rotating seat 12, and the upper end of the clamping member 19 is located in the arc-shaped groove 22. A strip-shaped hole 26 is provided on the positioning sleeve 11, and a vertical groove 20 is provided on the positioning seat 10. The positions of the vertical groove 20 and the strip-shaped hole 26 correspond to each other. The lower end of the clamping member 19 passes through the strip-shaped hole 26 and is placed in the vertical groove 20. When the rotating seat 12 is rotated, the lower end of the clamping member 19 moves upward from the lower ends of the strip-shaped hole 26 and the vertical groove 20, and the upper end of the clamping member 19 moves from one end of the arc-shaped groove 22 to the other end.

[0054] A first placement groove 27 is provided at one end of the arc-shaped groove 22, and a first retaining block 28 is provided in the first placement groove 27. A second placement groove 29 is provided in the vertical groove 20, and a second retaining block 30 is provided in the second placement groove 29.

[0055] Since the spherical heads 32 are provided on the first extension section 21 and the second extension section 31, tubular grooves 33 that cooperate with the spherical heads 32 are provided in the vertical groove 20 and the arc groove 22. The tubular grooves 33 allow the spherical heads 32 to move therein, and at the same time prevent the first extension section 21 and the second extension section 31 from sliding out of the arc groove 22 and the vertical groove 20 respectively.

[0056] To facilitate the installation of the spherical heads 32 on the first extension section 21 and the second extension section 31, tubular grooves 33 that cooperate with the spherical heads 32 are also provided in the first insertion groove 27 and the second insertion groove 29.

[0057] Tubular portions 34 that cooperate with the tubular grooves 33 are provided on the first retaining block 28 and the second retaining block 30 for blocking the tubular grooves 33. The first retaining block 28 and the second retaining block 30 can be fixed to the positioning seat 10 by screws for blocking the arc groove 22 and the vertical groove 20.

[0058] One end of the arc groove 22 close to the first insertion groove 27 is the N end, and the end far from the first insertion groove 27 is the M end. The distance from the N end to the inner wall of the placement area 13 is greater than the distance from the M end to the inner wall of the placement area 13.

[0059] The rotating seat 12 is composed of a rotating portion 35 and a mating portion 36. The mating portion 36 is placed on the plain bearing 18. A placement opening 37 is formed in the middle of the rotating portion 35. The placement opening 37 communicates with the placement area 13, allowing the workpiece to enter the placement area 13 after being placed through the placement opening 37.

[0060] In addition, a second inclined surface 38 is provided on the mating portion 36. The lower end of the second inclined surface 38 inclines towards the middle for guiding the workpiece to the middle position so that the multiple clamping members 19 can clamp the workpiece.

[0061] A handle 39 is also provided on the rotating seat 12 to facilitate the rotation of the rotating seat 12. An annular groove 40 is further provided at the lower end of the rotating portion 35. The annular groove 40 can be used to adjust the movement of the limit plate 42 in the structure 41, enabling the limit plate 42 to enter or disengage from the one-way limit groove 43.

[0062] The positioning sleeve 11 is composed of an annular portion 44 and a mating cylinder 45. The mating cylinder 45 is placed in the placement area 13, and the annular portion 44 is located on the second step 16. A placement space 46 is formed in the middle of the positioning sleeve 11. Multiple strip holes 26 are provided on its mating cylinder 45 for the second extension section 31 to pass through and enter the vertical groove 20.

[0063] The mating cylinder 45 is provided with a small hole 47 through which the first extension section 21 passes to enter the arc groove 22.

[0064] During installation, first insert the first extension section 21 of the clamping member 19 into the small hole 47 and into the arc-shaped groove 22, then fix the spherical head portion 32 on the first extension section 21 and the second extension section 31, and then make the second extension section 31 pass through the strip-shaped hole 26 and into the vertical groove 20. It can be placed from the first placement groove 27 and the second placement groove 29.

[0065] The positioning seat 10 is composed of a disc portion 48 and a cylindrical portion 49, and the placement area 13 is located in the middle of the cylindrical portion 49. A support portion 50 is provided between the mating cylinder 45 and the cylindrical portion 49, a threaded hole 51 is provided in the middle of the support portion 50, a support rod 52 is provided in the threaded hole 51, and a threaded portion 53 that cooperates with the threaded hole 51 is provided on the support rod 52. A hexagonal hole 54 is provided on the support rod 52.

[0066] The clamping member 19 is composed of a first extension section 21, a first vertical section 541, a second vertical section 55, a first contact section 23, a connecting section 25, a second contact section 24, a third vertical section 56, a fourth vertical section 57, and a second extension section 31. A spherical head portion 32 is provided on the first extension section 21 and the second extension section 31, and the spherical head portion 32 can prevent the first extension section 21 and the second extension section 31 from disengaging from the positioning seat 10. The length of the first extension section 21 is greater than the length of the second extension section 31, which can keep the first extension section 21 better for clamping the workpiece.

[0067] A first deformation area 58 is formed between the first vertical section 541 and the second vertical section 55, a second deformation area 59 is formed between the second vertical section 55 and the first contact section 23, a third deformation area 60 is formed between the third vertical section 56 and the second contact section 24, and a fourth deformation area 61 is formed between the third vertical section 56 and the fourth vertical section 57. By forming two deformation areas at the upper and lower parts of the clamping member 19 respectively, the workpiece can be clamped and stably fixed.

[0068] The connecting section 25 is arc-shaped and bends from both ends towards the middle of the first vertical section 541 and the fourth vertical section 57. When the first extension section 21 reaches the M end and the second extension section 31 reaches the upper end of the vertical groove 20, the connecting section 25 can cooperate with the wall surface of the cylindrical workpiece, so as to facilitate its fixation.

[0069] An installation hole 62 is provided at the lower end of the positioning seat 10. The installation hole 62 communicates with the vertical groove 20. A first spring 63 and a bolt 8 are provided in the installation hole 62. The lower end of the first spring 63 contacts the bolt 8, and the upper end contacts the spherical head portion 32 on the second extension section 31. To facilitate the movement of the clamping member 19, by rotating the bolt 8, the pressure value of the first spring 63 can be changed, so as to control the thrust of the first spring 63 pushing the spherical head portion 32 on the second extension section 31, and assist in rotating the rotating seat 12.

[0070] As shown Figure 13 in the figure, for the convenience of the movement of the clamping member 19, the included angle S between the perpendicular line of the second extension section 31 and the center line of the second contact section 24 ranges from 0 to 15°. This makes it convenient to cooperate with the first spring 63 to push the clamping member 19 to move.

[0071] The positioning seat 10 is provided with a plurality of one-way limiting grooves 43, and the rotating seat 12 is provided with symmetrically arranged adjusting structures 41 that cooperate with the one-way limiting grooves 43. The adjusting structure 41 is provided with a limiting plate 42, a rocker 64, and symmetrically arranged second springs 65 and fixing blocks 66. The rocker 64 is arranged between the symmetrically arranged fixing blocks 66. The rocker 64 is provided with a first hinge rod 67 and a second hinge rod 68. The first hinge rod 67 is located at one end of the rocker 64. The rocker 64 is hinged to the upper end of the limiting plate 42 through the first hinge rod 67. The second spring 65 is located between the rocker 64 and the rotating seat 12. The rotating seat 12 is provided with a movable groove 69. The limiting plate 42 passes through the movable groove 69 and is placed in the deepening groove 70 in the one-way limiting groove 43. The rotating seat 12 is provided with a movable hole 14 for the limiting plate 42 to slide up and down.

[0072] One end of the one-way limiting groove 43 is a straight wall surface 71, the other end is an inclined wall surface 67, and there is a deepening groove in the middle. When the rotating seat rotates in the direction of F2, at this time, the one-way limiting groove 43 can allow the limiting plate 42 to pass through, and the limiting plate 42 can slide on the inclined wall surface 67. When rotating in the reverse direction, it will encounter the obstruction of the straight wall surface 71.

[0073] If it is necessary to rotate the rotating seat in the direction of F1, one end of the rocker 64 can be pressed, that is, the end far from the first hinge rod 67. At this time, the rocker 64 uses the second hinge rod 68 as a fulcrum, compresses the second spring 65, and pries the limiting plate 42 to move upward, so that the lower end of the limiting plate 42 breaks away from the limitation of the deepening groove 70 and the one-way limiting groove 43 and moves into the inner part of the annular groove 40, so that the one-way limiting groove 43 no longer blocks the limiting plate 42, and the rotating seat can be rotated in the direction of F1.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A workbench facilitating the installation of workpieces, characterized in that, Comprising: The outer shell of a machining center, A rotating device arranged inside the outer shell of the machining center. The rotating device consists of a rotating base, a swing arm, and a fixed base. The swing arm is located between the rotating base and the fixed base. A fixed disk is provided on the swing arm, and multiple fixing grooves are provided on the fixed disk. The fixing grooves are evenly dispersed from the center to the outside. A fixing structure installed on the fixed disk. The fixing structure is located at the middle position where the fixing grooves are concentrated. The fixing structure consists of a positioning seat, a positioning sleeve, and a rotating seat. The positioning seat is fixed on the fixed disk. A placement area for placing a workpiece is provided in the middle of the positioning seat. The positioning sleeve is arranged in the placement area. A through chamber is formed by hollowing out the middle of the positioning sleeve. The rotating seat is installed in the placement area and is located above the positioning sleeve. The positioning seat, the positioning sleeve, and the rotating seat are connected by multiple clamping members for clamping the workpiece. The upper end of the clamping member is placed in the rotating seat, and the lower end passes through the positioning sleeve and is placed in the positioning seat. An arc-shaped groove is provided on the rotating seat. The upper end of the clamping member is located in the arc-shaped groove. A strip-shaped hole is provided on the positioning sleeve. A vertical groove is provided on the positioning seat. The position of the vertical groove corresponds to that of the strip-shaped hole. The lower end of the clamping member passes through the strip-shaped hole and is placed in the vertical groove. When the rotating seat is rotated, the lower end of the clamping member moves from the lower end of the strip-shaped hole and the vertical groove to the upper end, and the upper end of the clamping member moves from one end of the arc-shaped groove to the other end, thereby clamping the workpiece. Multiple one-way limiting grooves are provided on the positioning seat, and symmetrical adjusting structures cooperating with the one-way limiting grooves are provided on the rotating seat. A first placement groove is provided at one end of the arc-shaped groove, and a first retaining block is provided in the first placement groove. A second placement groove is provided in the vertical groove, and a second retaining block is provided in the second placement groove. One end of the arc-shaped groove close to the first placement groove is the N end, and the end far from the first placement groove is the M end. The distance from the N end to the inner wall of the placement area is greater than the distance from the M end to the inner wall of the placement area.

2. The workbench for facilitating the installation of workpieces according to claim 1, characterized in that, The clamping member consists of a first extended section, a first vertical section, a second vertical section, a first contact section, a connecting section, a second contact section, a third vertical section, a fourth vertical section, and a second extended section. Ball heads are provided on the first extended section and the second extended section. The length of the first extended section is greater than the length of the second extended section.

3. The workbench for facilitating the installation of workpieces according to claim 2, characterized in that, A first deformation area is formed between the first vertical section and the second vertical section, a second deformation area is formed between the second vertical section and the first contact section, a third deformation area is formed between the third vertical section and the second contact section, and a fourth deformation area is formed between the third vertical section and the fourth vertical section.

4. The workbench for facilitating the installation of workpieces according to claim 3, characterized in that, The connecting section is arc-shaped and bends from both ends towards the middle of the first vertical section and the fourth vertical section.

5. The workbench for facilitating the installation of workpieces according to claim 4, characterized in that, An installation hole is provided at the lower end of the positioning seat. The installation hole is communicated with the vertical groove. A first spring and a bolt are provided in the installation hole. The lower end of the first spring contacts the bolt, and the upper end contacts the ball head on the second extended section.

6. The workbench for facilitating the installation of workpieces according to claim 5, wherein, The included angle between the perpendicular line of the second extended section and the center line of the second contact section is S, and the angular range of the included angle S is 0 - 15°.

7. The workbench for facilitating the installation of workpieces according to claim 1, characterized in that, One end of the one-way limiting groove is a straight wall surface, the other end is an inclined wall surface, and a deepening groove is provided in the middle.

8. The workbench for facilitating the installation of workpieces according to claim 7, characterized in that, A limiting plate, a rocker, symmetric second springs, and fixing blocks are provided in the adjusting structure. The rocker is arranged between the symmetric fixing blocks. A first hinge rod and a second hinge rod are provided on the rocker. The first hinge rod is located at one end of the rocker. The rocker is hinged to the upper end of the limiting plate through the first hinge rod. The second spring is located between the rocker and the rotating seat. An activity groove is provided on the rotating seat. The limiting plate passes through the activity groove and is placed in a deepening groove in the one-way limiting groove.

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