Adjustable workpiece broaching machining positioner

Abstract

An adjustable workpiece broaching machining positioner belongs to the technical field of positioners and comprises two vertical plates, the two vertical plates are correspondingly arranged front and back, a positioning pedestal is rotatably arranged between the two vertical plates, a supporting frame is fixedly installed on the left side of the positioning pedestal, a first air cylinder is fixedly installed on the left side of the supporting frame, and the output end of the first air cylinder is connected with a first moving rod. According to the positioning device, the distance between the positioning pieces at the front position and the rear position can be adjusted, the distance between positioning points can be flexibly adjusted according to the positioning requirements of workpieces of different specifications, different positioners do not need to be frequently replaced, time cost is saved, the displacement distances adjusted by the two positioning pieces are the same, follow-up workpiece positioning is facilitated, and the working efficiency is improved. The positioning effect is prevented from being affected by deviation of the two positioning points after adjustment, the workpiece can be machined at different inclination angles, compared with a traditional manual adjustment mode, the method is more accurate, the adjustment steps are simpler and more convenient, and the positions of the two positioning pieces can be freely adjusted and positioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioners, and in particular relates to an adjustable workpiece hole enlarging processing positioner. Background Art

[0002] In the field of workpiece processing, the positioner plays a vital role. The positioner can ensure the stability of the workpiece during the processing and ensure the qualification rate of the finished workpiece.

[0003] Related art (publication number CN213560111U) discloses a workpiece positioning fixture, including a U-shaped fixture seat, the bottom of the U-shaped installation gap is provided with a plurality of limit slots spaced apart in front and back, the workpiece positioning fixture also includes a positioning assembly slidably connected to the U-shaped installation gap, the positioning assembly is used to position the workpiece, the left and right sides of the U-shaped fixture seat are equipped with a plurality of positioning rod components that cooperate with the limit slots, the positioning rod components include a cylinder mounted on the U-shaped fixture seat, the piston rod of the cylinder is fixedly connected to an extrusion rod, and the extrusion rod is located above the first positioning clamp plate and the second positioning clamp plate. The above device design not only has high processing efficiency, but also is easy to operate, and the workpiece can be fully positioned and clamped by cooperating with a plurality of cylinders.

[0004] However, the above-mentioned workpiece processing locator lacks the function of conveniently adjusting the distance between the two positioning points. In the actual hole expansion process, workpieces of different sizes require positioning points with different spacings to ensure accurate fixation of the workpiece positioning, but the existing locators are difficult to quickly and flexibly adjust the spacing between positioning points. This results in the need to frequently replace different locators when processing workpieces of various specifications, which increases costs and operation time. Utility Model Content

[0005] In view of the existing technology, workpieces of different sizes require positioning points with different spacing to ensure accurate fixation of the workpiece positioning. However, the existing positioners are difficult to quickly and flexibly adjust the spacing between the positioning points. This leads to the need to frequently replace different positioners when processing workpieces of various specifications, which increases costs and operation time. The utility model provides an adjustable workpiece reaming processing positioner, which can adjust the spacing between the positioning pieces at the front and rear positions. It can flexibly adjust the spacing between the positioning points according to the positioning requirements of workpieces of different specifications, eliminating the need to frequently replace different positioners, saving time and costs, and the displacement distances adjusted by the two positioning pieces are the same. Its specific technical solution is as follows:

[0006] A kind of adjustable workpiece reaming processing positioner comprises two vertical plates, the two vertical plates are arranged correspondingly in front and behind, a positioning base is rotatably arranged between the two vertical plates, a support frame is fixedly installed on the left side of the positioning base, a first cylinder is fixedly installed on the left side of the support frame, the output end of the first cylinder is connected to the first moving rod, the front and rear ends of the first moving rod are respectively slidably sleeved with moving sleeve seats, each of the moving sleeve seats is rotatably connected with a first connecting rod and a second connecting rod, and the first connecting rod is rotatably connected to the support frame, a fixed seat is fixedly installed on the front and rear sides of the vertical plates, each fixed seat is penetrated by a second moving rod, and the second connecting rod is rotatably connected to the second moving rod, and a positioning assembly is provided at the end of the second moving rod.

[0007] In the above technical solution, the positioning assembly includes a rotating arm provided at the end of the second movable rod, a second cylinder is fixedly mounted on the rotating arm, and a positioning piece is connected to the output end of the second cylinder.

[0008] In the above technical solution, an adjustment component is provided at the connection between the second moving rod and the rotating arm;

[0009] The adjusting assembly includes a first rotating shaft rotatably connected to the end of the second moving rod, and the first rotating shaft extends upward from the outer wall of the second moving rod, a mounting block is fixedly mounted on the first rotating shaft, a positioning pin is provided through the outer wall of the mounting block from top to bottom, a plurality of positioning holes are equidistantly provided on the second moving rod along the circumferential direction, and the bottom end of the positioning pin is embedded in the inner cavity of one of the positioning holes, a connecting block is fixedly mounted on the first rotating shaft, and the connecting block is fixedly connected to the left side wall of the rotating arm.

[0010] In the above technical solution, the plurality of positioning holes are equidistantly arranged along the circumferential direction with the center of the first rotating shaft as the axis.

[0011] In the above technical solution, stoppers are respectively installed at the front and rear ends of the first moving rod.

[0012] In the above technical solution, an angle adjustment component is provided on the front side of the vertical plate;

[0013] The angle adjustment assembly includes a second rotating shaft rotatably arranged on the front vertical plate, and the rear end of the second rotating shaft is fixedly connected to the positioning base, a first gear is fixedly installed on the second rotating shaft, the front vertical plate is rotatably connected to a third rotating shaft, a second gear is fixedly installed on the third rotating shaft, the second gear is meshed with the side wall of the first gear, a motor is installed on the front vertical plate through a motor frame, and the output end of the motor is connected to the third rotating shaft.

[0014] In the above technical solution, the diameter of the second gear is greater than the diameter of the first gear.

[0015] In the above technical solution, a through slot is provided on the positioning base, a workpiece is positioned on the positioning base, and the workpiece is located above the through slot.

[0016] Compared with the prior art, the adjustable workpiece hole enlarging processing positioner of the utility model has the following beneficial effects:

[0017] First, different sizes of existing workpieces require different spacings of positioning points to ensure accurate fixation of the workpiece positioning, but the existing positioner is difficult to quickly and flexibly adjust the spacing of the positioning points, resulting in the need to frequently replace different positioners when reaming workpieces of various specifications, which increases costs and operation time. The utility model can synchronously drive the front and rear second connecting rods, the first connecting rod, and the second moving rod to move by driving the first moving rod to realize the adjustment of the spacing between the positioning pieces at the front and rear positions. It can flexibly adjust the spacing between the positioning points according to the positioning requirements of workpieces of different specifications, without the need to frequently replace different positioners, thus saving time and costs.

[0018] Second, the utility model can realize synchronous adjustment of the two positioning pieces by driving the first moving rod, and the displacement distance of the two positioning pieces is the same, which effectively ensures that the two positioning pieces are still symmetrically arranged front to back after the adjustment, which is more conducive to the subsequent expansion positioning of the workpiece and avoids the offset of the two positioning points after adjustment, which affects the positioning effect;

[0019] Third, in view of the problem that it is difficult for existing positioners to adjust the angle of the workpiece to achieve angle processing operations, the processing process becomes complicated and the accuracy is difficult to ensure, which seriously affects the efficiency and quality of workpiece processing. The utility model can drive the positioning base and the workpiece positioned on the positioning base to achieve angle adjustment through the rotation of the first gear and the third rotating shaft, so that the workpiece can be processed at different tilt angles. Compared with the traditional method that requires manual adjustment, it is more accurate and the adjustment steps are simpler;

[0020] Fourth, the utility model drives the first gear to rotate by the second gear, and the tilt angle of the first gear and the positioning base can be adjusted by a small rotation of the second gear;

[0021] Fifth, the present invention can adjust the angle of the rotating arm relative to the second movable rod through the positioning hole, the mounting block, and the positioning pin, thereby achieving the adjustment and positioning of the positioning piece relative to the second movable rod. That is, without adjusting the position of the second movable rod, the positions of the two positioning pieces can be freely adjusted, flexibly meeting the requirements of the two positioning pieces for positioning the edges of special-shaped workpieces.

[0022] 6. The utility model can ensure that the bottom end surface of the workpiece after positioning on the positioning seat is hollowed out by providing a through groove, which is convenient for reaming the workpiece and avoids the adverse effect of the positioning seat during the reaming operation of the positioned workpiece;

[0023] In summary, the utility model can realize the adjustment of the spacing between the positioning pieces at the front and rear positions, and can flexibly adjust the spacing between the positioning points according to the positioning requirements of workpieces of different specifications. There is no need to frequently replace different positioners, which saves time and cost. The displacement distances of the two positioning pieces are the same, which is more conducive to the subsequent positioning of the workpiece, and avoids the offset of the two positioning points after adjustment and affecting the positioning effect. The workpiece can be expanded at different inclination angles. Compared with the traditional method that requires manual adjustment, it is more accurate and the adjustment steps are simpler, and the positions of the two positioning pieces can be freely adjusted and positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the vertical plate of the utility model;

[0025] Figure 2 This is a schematic structural diagram of the support frame of the utility model;

[0026] Figure 3 It is a top view of the first moving rod of the utility model;

[0027] Figure 4 for Figure 3 A magnified view of point A;

[0028] Figure 5 This is a schematic diagram of the structure of the through slot of the utility model;

[0029] Figures 1 to 5 In the figure, 1. vertical plate, 2. positioning base, 3. support frame, 4. first cylinder, 5. first moving rod, 6. first connecting rod, 7. stop block, 8. moving sleeve, 9. second connecting rod, 10. second moving rod, 11. fixed seat, 12. rotating arm, 13. second cylinder, 14. positioning plate, 15. first rotating shaft, 16. connecting block, 17. positioning hole, 18. mounting block, 19. positioning pin, 20. second rotating shaft, 21. first gear, 22. third rotating shaft, 23. second gear, 24. motor, 25. through slot, 26. workpiece. DETAILED DESCRIPTION

[0030] The following is a combination of specific implementation cases and attached Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0031] See Figures 1 to 5As shown, an adjustable workpiece reaming processing positioner includes two vertical plates 1, the two vertical plates 1 are correspondingly arranged front and back, and a positioning base 2 is rotatably arranged between the two vertical plates 1, that is, the positioning base 2 can be rotated and adjusted relative to the two vertical plates 1, and a support frame 3 is fixedly installed on the left side of the positioning base 2, and a first cylinder 4 is fixedly installed on the left side of the support frame 3. The output end of the first cylinder 4 is connected to a first moving rod 5. By turning on the first cylinder 4, the first moving rod 5 can be driven to move in the horizontal direction. The front and rear ends of the first moving rod 5 are respectively provided with sliding sleeves The movable sleeve 8 and the first movable rod 5 are respectively provided with stoppers 7 at the front and rear ends. The setting of the stoppers 7 can prevent the first movable rod 5 from excessively moving and causing the movable sleeve 8 to separate from the outer wall of the first limit rod 5, that is, the stoppers 7 can prevent the movable sleeve 8 from moving to the outer wall of the first movable rod 5. Each movable sleeve 8 is rotatably connected to the first connecting rod 6 and the second connecting rod 9 by a pin shaft. When the first movable rod 5 moves, the first connecting rod 6 and the second connecting rod 9 can be driven to move synchronously with the rotating connection of the movable sleeve 8, so that the first connecting rod 6 and the second connecting rod 9 rotate in the corresponding direction, and the first connecting rod 6 is rotatably connected to the support frame 3 through a pin shaft. Fixed seats 11 are fixedly installed on the front and rear sides of the vertical plate 1. Each fixed seat 11 is penetrated by a second moving rod 10, and the second connecting rod 9 is rotatably connected to the second moving rod 10 through a pin shaft. A positioning assembly is provided at the end of the second moving rod 10. The first cylinder 4 is opened to drive the first moving rod 5 to move horizontally to the right, and the first moving rod 5 moves to the right to drive the first connecting rod 6 and the rotating connection of the movable sleeve seat 8. In order to synchronize the movement of the shaft, the movable sleeve 8 is prompted to move along the first movable rod 5 toward the middle of the first movable rod 5. The movable sleeve 8 moving toward the middle of the first movable rod 5 drives the second connecting rod 9 and the movable sleeve 8 to move synchronously at the rotation connection, so as to prompt the second connecting rod 9 and the second movable rod 10 to move toward the middle of the positioning base 2. At this time, the second movable rod 10 moves along the inner cavity of the fixed base 11 toward the middle of the positioning base 2, so as to drive the front and rear two groups of positioning components to move synchronously toward the middle, thereby realizing the adjustment of the distance between the two groups of positioning components to become smaller.

[0032] Main references Figure 1 and Figure 2 As shown, the positioning assembly includes a rotating arm 12 arranged at the end of the second moving rod 10, and a second cylinder 13 is fixedly installed on the rotating arm 12. The output end of the second cylinder 13 is connected to a positioning plate 14. By turning on the second cylinder 13, the positioning plate 14 is driven downward to press the workpiece 26, so that the workpiece 26 can be positioned on the positioning base 2.

[0033] Main references Figure 3 and Figure 4As shown, an adjustment component is provided at the connection between the second moving rod 10 and the rotating arm 12, through which the position of the rotating arm 12 relative to the second moving rod 10 can be adjusted, thereby achieving the position adjustment of the positioning piece 14 independently, so that the position of the positioning piece 14 is adapted to the positioning requirements of the special-shaped workpiece; the adjustment component includes a first rotating shaft 15 rotatably connected to the end of the second moving rod 10 through a bearing, and the first rotating shaft 15 extends upward from the outer wall of the second moving rod 10, and a mounting block 18 is fixedly installed on the first rotating shaft 15, and the outer wall of the mounting block 18 A positioning pin 19 is provided through the wall from top to bottom, and a plurality of positioning holes 17 are provided at equal intervals along the circumference of the second movable rod 10, and the bottom end of the positioning pin 19 is embedded in the inner cavity of one of the positioning holes 17. A connecting block 16 is fixedly mounted on the first rotating shaft 15, and the connecting block 16 is fixedly connected to the left side wall of the rotating arm 12; In addition, a plurality of positioning holes 17 are provided at equal intervals along the circumference with the center of the first rotating shaft 15 as the axis, thereby ensuring that after the first rotating shaft 15 rotates, the positioning pin 19 located on the mounting block 18 can still be aligned with the inner cavity of one of the positioning holes 17;

[0034] Pull the positioning pin 19 upward to cause it to disengage from the corresponding positioning hole 17, rotate the rotating arm 12, the connecting block 16 and the first rotating shaft 15, and realize the rotation adjustment of the rotating arm 12 relative to the second movable rod 10. The position of the positioning piece 14 located below the free end of the rotating arm 12 is adjusted. After the adjustment, the positioning pin 19 is reinserted into the corresponding positioning hole 17 cavity after adjustment, that is, the connecting block 16, the rotating arm 12 and the positioning piece 14 are locked after the adjusted position, thereby satisfying the function of flexible and separate adjustment of the two positioning pieces 14.

[0035] Main references Figure 2 、 Figure 3 and Figure 5As shown, an angle adjustment component is provided on the front side of the vertical plate 1, and the angle of the positioning base 2 is adjusted by the angle adjustment component; the angle adjustment component includes a second shaft 20 rotatably provided on the front vertical plate 1 through a bearing, and the rear end of the second shaft 20 is fixedly connected to the positioning base 2, that is, the rotation of the second bearing 20 can drive the positioning base 2 to rotate synchronously, and a first gear 21 is fixedly installed on the second shaft 20, and the front vertical plate 1 is rotatably connected to the third shaft 22 through a bearing, and a second gear 23 is fixedly installed on the third shaft 22, and the second gear 23 is connected to the third gear 23. A gear 21 is meshed with the side wall, and the front side vertical plate 1 is installed with a motor 24 through the motor frame, and the output end of the motor 24 is connected to the third shaft 22. The motor 24 is turned on to drive the third shaft 22 and the second gear 23 to rotate. Since the second gear 23 is meshed with the side wall of the first gear 21 and the diameter of the second gear 23 is larger than the diameter of the first gear 21, the rotating second gear 23 can prompt the first gear 21 to drive the second shaft 20 to rotate, so that the positioning base 2 fixedly connected to the second shaft 20 can adjust the tilt angle; In addition, mainly refer to Figure 1 As shown, the diameter of the second gear 23 is larger than that of the first gear 21. The large-diameter second gear 23 drives the small-diameter first gear 21 to rotate. The tilt angle of the first gear 21 and the positioning base 2 can be adjusted by a small rotation of the second gear 23.

[0036] Main references Figure 1 and Figure 5 As shown, a through slot 25 is provided on the positioning base 2, and a workpiece 26 is positioned on the positioning base 2, and the workpiece 26 is located above the through slot 25. The rotation of the positioning base 2 can drive the workpiece 26 positioned on the positioning base 2 to adjust the tilt angle synchronously. Through the tilted workpiece 26, the inclined hole position of the workpiece 26 can be expanded with the help of other expansion equipment, and the setting of the through slot 25 leaves enough space for the hole position processing of the workpiece 26.

[0037] It is worth noting that the first cylinder 4 and the second cylinder 13 used in this application are self-locking cylinders commonly used on the market, and their output ends can stay at any position and be locked; the motor 24 adopts a self-locking motor commonly used on the market with an output end that can be locked. When it stops working, its output end can be self-locked and will not rotate under external force, and the motor 24 is a forward and reverse motor commonly used on the market, and its output end can rotate forward or reverse according to the use requirements, and it can meet the above-mentioned use requirements; in this application, the reaming equipment commonly used in the existing market is used to carry out reaming processing on the workpiece 26, and the reaming equipment can meet the use requirements, and the above-mentioned existing components will not be described in detail here.

[0038] The working principle of an adjustable workpiece hole enlarging processing positioner in this embodiment is as follows:

[0039] When the size of the workpiece 26 becomes smaller, it is necessary to adjust the distance between the two positioning pieces 14 to a smaller size. The first cylinder 4 is turned on to drive the first moving rod 5 to move horizontally to the right. The first moving rod 5 moves to the right and drives the first connecting rod 6 and the rotating connection of the movable sleeve 8 to move synchronously with the axis, so as to prompt the movable sleeve 8 to move along the first moving rod 5 to the middle of the first moving rod 5. The movable sleeve 8 moving to the middle of the first moving rod 5 drives the second connecting rod 9 to move synchronously with the rotating connection of the movable sleeve 8, so as to prompt the rotating connection of the second connecting rod 9 and the second moving rod 10 to move toward the middle of the positioning base 2. At this time, the second moving rod 10 moves along the fixed seat The inner cavity 11 moves toward the middle direction of the positioning base 2, so as to drive the rotating arm 12, the second cylinder 13 and the positioning piece 14 in their respective positions to move synchronously toward the middle direction of the vertical plate 1, that is, to achieve the purpose of reducing the distance between the two positioning pieces 14, thereby ensuring that the two positioning pieces 14 after adjustment can adapt to the positioning of smaller-sized workpieces 26; when it is necessary to position a larger-sized workpiece 26, refer to the above steps and operate in reverse, that is, move the output end of the first cylinder 4 to the left, and finally achieve the synchronous movement of the front and rear two groups of positioning pieces 14 in the direction away from the middle of the vertical plate 1, so as to increase the distance between the two positioning pieces 14 and adapt to the positioning of the larger-sized workpiece 26 at the positioning base 2;

[0040] When the tilt angle of the positioned workpiece 26 is adjusted, the third rotating shaft 22 and the second gear 23 are driven to rotate by the turned-on motor 24. Since the second gear 23 is meshed and connected with the side wall of the first gear 21, and the diameter of the second gear 23 is larger than the diameter of the first gear 21, the rotating second gear 23 can prompt the first gear 21 to drive the second rotating shaft 20 to rotate, prompting the positioning base 2 fixedly connected to the second rotating shaft 20 and the workpiece 26 positioned on the positioning base 2 to adjust the tilt angle synchronously. By tilting the workpiece 26, the workpiece 26 can be expanded at the inclined hole position with the help of other expansion equipment, and the setting of the through slot 25 leaves enough space for the hole position processing of the workpiece 26.

[0041] When the workpiece 26 is of an irregular shape and the two corresponding positioning pieces 14 at the front and rear cannot position the left edge of the irregular workpiece 26, it is necessary to adjust the positioning pieces 14 at the corresponding positions separately: pull the positioning pin 19 upward to cause it to disengage from the corresponding inner cavity of the positioning hole 17, rotate the rotating arm 12, the connecting block 16 and the first rotating shaft 15, and realize the rotation adjustment of the rotating arm 12 relative to the second moving rod 10, so that the position of the positioning piece 14 located below the free end of the rotating arm 12 is adjusted, and after the adjustment, the positioning pin 19 is reinserted into the inner cavity of the corresponding positioning hole 17 after adjustment, that is, the locking of the connecting block 16, the rotating arm 12 and the positioning piece 14 after the adjusted position is realized, thereby satisfying the function of flexible and separate adjustment of the two positioning pieces 14;

[0042] The second cylinder 13 is turned on to drive the positioning piece 14 downward to press the workpiece 26, so that the workpiece 26 can be positioned on the positioning base 2;

[0043] The utility model can adjust the distance between the positioning pieces 14 at the front and rear positions, and can flexibly adjust the distance between the positioning points according to the positioning requirements of workpieces of different specifications. There is no need to frequently replace different positioners, which saves time and cost. The displacement distances adjusted by the two positioning pieces 14 are the same, which is more conducive to the subsequent positioning of the workpiece, and avoids the offset of the two positioning points after adjustment to affect the positioning effect. The workpiece 26 can be processed at different inclination angles. Compared with the traditional method that requires manual adjustment, it is more accurate and the adjustment steps are simpler. In addition, the respective positions of the two positioning pieces 14 can be freely adjusted and positioned.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An adjustable workpiece hole enlarging processing positioner, comprising two vertical plates (1), the two vertical plates (1) being arranged in front and back correspondence, characterized in that: A positioning seat (2) is rotatably provided between the two vertical plates (1), a support frame (3) is fixedly installed on the left side of the positioning seat (2), a first cylinder (4) is fixedly installed on the left side of the support frame (3), an output end of the first cylinder (4) is connected to a first moving rod (5), and a moving sleeve seat (8) is slidably provided on the front and rear ends of the first moving rod (5), and each of the moving sleeve seats (8) is rotatably connected to a first connecting rod (6) and a second connecting rod (9), and the first connecting rod (6) is rotatably connected to the support frame (3), a fixing seat (11) is fixedly installed on the front and rear sides of the vertical plate (1), a second moving rod (10) is penetrated by each fixing seat (11), and the second connecting rod (9) is rotatably connected to the second moving rod (10), and a positioning component is provided at the end of the second moving rod (10).

2. The adjustable workpiece hole enlarging positioner according to claim 1, characterized in that: The positioning assembly comprises a rotating arm (12) arranged at the end of the second moving rod (10), a second cylinder (13) is fixedly mounted on the rotating arm (12), and a positioning piece (14) is connected to the output end of the second cylinder (13).

3. The adjustable workpiece hole enlarging positioner according to claim 2, characterized in that: An adjustment component is provided at the connection between the second moving rod (10) and the rotating arm (12); The adjustment assembly includes a first rotating shaft (15) rotatably connected to the end of the second moving rod (10), and the first rotating shaft (15) extends upward from the outer wall of the second moving rod (10), a mounting block (18) is fixedly mounted on the first rotating shaft (15), and a positioning pin (19) is provided through the outer wall of the mounting block (18) from top to bottom, and a plurality of positioning holes (17) are equidistantly provided on the second moving rod (10) along the circumferential direction, and the bottom end of the positioning pin (19) is embedded in the inner cavity of one of the positioning holes (17), and a connecting block (16) is fixedly mounted on the first rotating shaft (15), and the connecting block (16) is fixedly connected to the left side wall of the rotating arm (12).

4. The adjustable workpiece hole enlarging positioner according to claim 3, characterized in that: A plurality of positioning holes (17) are equidistantly arranged along the circumferential direction with the center of the first rotating shaft (15) as the axis.

5. The adjustable workpiece hole enlarging positioner according to claim 1, characterized in that: Stoppers (7) are respectively installed at the front and rear ends of the first moving rod (5).

6. The adjustable workpiece hole enlarging positioner according to claim 1, characterized in that: An angle adjustment component is provided on the front side of the vertical plate (1); The angle adjustment assembly comprises a second rotating shaft (20) rotatably arranged on the front vertical plate (1), and the rear end of the second rotating shaft (20) is fixedly connected to the positioning base (2), a first gear (21) is fixedly installed on the second rotating shaft (20), the front vertical plate (1) is rotatably connected to a third rotating shaft (22), a second gear (23) is fixedly installed on the third rotating shaft (22), the second gear (23) is meshed with the side wall of the first gear (21), and a motor (24) is installed on the front vertical plate (1) through a motor frame, and the output end of the motor (24) is connected to the third rotating shaft (22).

7. The adjustable workpiece hole enlarging positioner according to claim 6, characterized in that: The diameter of the second gear (23) is greater than the diameter of the first gear (21).

8. The adjustable workpiece hole enlarging positioner according to claim 1, characterized in that: A through slot (25) is provided on the positioning seat (2), a workpiece (26) is positioned on the positioning seat (2), and the workpiece (26) is located above the through slot (25).

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