Positioning tool for press fitting of stay wire and worm gear

Abstract

The utility model relates to the technical field of positioning tools, and discloses a positioning tool for press fitting of a stay wire and a worm gear, which comprises a working table, a translation component mounted on the lower side of the working table, a pair of first guide rails fixedly mounted at one end of the upper side of the working table, and a support plate fixedly mounted between sliding tables of the pair of first guide rails, a tail clamping base is fixedly installed on the upper side of the supporting plate, a tensioning mechanism used for moving the supporting plate is installed on the lower side of the workbench, and the moving direction of the workbench is perpendicular to the moving direction of the supporting plate. The other end of the upper side of the workbench is fixedly provided with a head clamping seat, and the workbench is provided with a lifting clamp used for supporting a stay wire. A stay wire and a worm wheel can be well placed through the head clamping base, the tail clamping base and the lifting clamp, the tensioning mechanism moves the tail clamping base to straighten the stay wire, meanwhile, the lower roller and the upper roller in the lifting clamp can support the stay wire and allow the stay wire to be axially adjusted at the same time, and the placing position precision of the stay wire and the worm wheel is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning frock technical field, specifically for the positioning tool for wire and worm wheel press -fitting. BACKGROUND

[0002] In the automatic production process of the executor assembly, one of the processes is to connect the end buckle of the pull wire with the pin hole of the worm wheel.

[0003] First, the pull wire and the worm wheel are positioned and placed through the positioning tool, and then the corresponding pull wire and worm wheel are transferred to the punch press through the cooperation of the mechanical arm and the clamp. The clamping jaw clamping the pull wire and the clamping jaw clamping the worm wheel will be aligned through the linear displacement of a small distance between the end buckle and the pin hole. Then, the end buckle and the pin hole with the same axis are placed under the punch press to complete the insertion installation of the column pin. Finally, the connected pull wire and worm wheel are placed on the conveying belt and sent to the next process.

[0004] The placement precision of the pull wire and the worm wheel will directly affect the position precision of the corresponding clamping, and then affect the installation of the column pin in the stamping process. That is, the deviation of the coaxiality of the end buckle and the pin hole will cause the jamming in the process of the column pin insertion. Not only will it slightly damage the parts, but also will affect the yield and assembly efficiency.

[0005] Therefore, in order to solve the above problems, the positioning tool for wire and worm wheel press -fitting is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing the positioning tool for wire and worm wheel press -fitting, which can improve the precision of the placement of the pull wire and the worm wheel, thereby solving the problems proposed in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] The positioning tool for wire and worm wheel press -fitting, including the workbench, the lower side of the workbench is installed with the translation assembly, one end of the upper side of the workbench is fixedly installed with a pair of first guide rails, the slide table between a pair of first guide rails is fixedly installed with the support plate, the upper side of the support plate is fixedly installed with the tail part holder, the lower side of the workbench is installed with the tensioning mechanism for moving the support plate, and the workbench is provided with the through slot for passing through the tensioning mechanism, and the moving direction of the workbench is perpendicular to the moving direction of the support plate;The other end of the upper side of the workbench is fixedly installed with the head part holder, and the workbench is installed with the lifting clamp for supporting the pull wire.

[0009] Specifically, the lifting clamp is located between the through slot and the head part holder, and the lifting clamp is 2-3 uniformly distributed.

[0010] Specific, the lifting clamp includes a bracket and a pneumatic clamp jaw, the upper side of the workbench is fixedly installed with the pneumatic clamp jaw, the upper side of the pneumatic clamp jaw is fixedly installed with the bracket, two pairs of lower rollers are rotatably installed on the bracket, the clamp heads of the pneumatic clamp jaw are symmetrically arranged on the front and back sides of the bracket, and the clamp heads of the pneumatic clamp jaw are rotatably installed with upper rollers at one end close to each other, and the upper rollers are located above the lower rollers.

[0011] Further, the symmetrically arranged lower rollers are arranged in a V shape, and the symmetrically arranged upper rollers are arranged in an inverted V shape.

[0012] Specifically, the tensioning mechanism includes a support seat, a spring and a pneumatic cylinder, the pneumatic cylinder is fixedly installed on the lower side of the workbench, the support plate is fixedly installed with the support seat on the lower side, and the spring is fixedly installed between the output end of the pneumatic cylinder and the support seat.

[0013] Specifically, the translation assembly includes a rodless pneumatic cylinder and two second guide rails, the upper sides of the sliding tables of the rodless pneumatic cylinder and the second guide rails are fixedly assembled with the workbench, the rodless pneumatic cylinder is centrally arranged, and the two second guide rails are symmetrically arranged on the two sides of the rodless pneumatic cylinder.

[0014] Specifically, the head clamping seat includes a positioning pin and a head seat body, the head seat body is fixedly assembled with the workbench, a worm placing groove is formed in the top of the head seat body, a positioning groove is formed in the rear side of the inside of the worm placing groove, and the positioning pin is fixedly installed on the left side of the inside of the worm placing groove.

[0015] Specifically, the tail clamping seat includes a tail seat body and a pull wire placing groove, the tail seat body is fixedly assembled with the support plate, and the pull wire placing groove is formed in the top of the tail seat body.

[0016] Specifically, the upper side of the workbench is fixedly installed with a reference column, and the reference column is located at the front side of the lifting clamp, the left side of the through groove and the right side of the head clamping seat respectively.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The head clamping seat, the tail clamping seat and the lifting clamp can place the pull wire and the worm, the tensioning mechanism moves the tail clamping seat to straighten the pull wire, the lower rollers and the upper rollers in the lifting clamp can support the pull wire and allow the pull wire to be adjusted axially, the position precision of the pull wire and the worm is ensured, the precision of the clamping of the clamp is ensured, the situation that the column pin is jammed when being inserted is reduced, the risk that the parts are damaged is reduced, and the assembly yield and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic top view of the utility model;

[0020] Figure 2 This is a schematic left view of the structure of the lifting clip of this utility model;

[0021] Figure 3 for Figure 1 A schematic cross-sectional view of the structure at the tensioning mechanism of the AA section;

[0022] Figure 4 for Figure 1 A schematic cross-sectional view of the structure at the head slot of the AA.

[0023] In the diagram: 1. Workbench, 2. Lifting clamp, 21. Lower roller, 22. Upper roller, 23. Bracket, 24. Pneumatic gripper, 3. Head seat, 31. Positioning pin, 32. Positioning groove, 33. Worm gear placement groove, 34. Head seat, 4. Translation assembly, 41. Rodless cylinder, 42. Second guide rail, 5. Support plate, 6. Tail seat, 61. Wire placement groove, 62. Tail seat, 7. First guide rail, 8. Tensioning mechanism, 81. Support seat, 82. Spring, 83. Cylinder, 9. Reference column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example content:

[0026] Please see Figure 1 The positioning tool for wire drawing and worm gear pressing includes a worktable 1, which is a rectangular plate structure. A translation component 4 is installed on the lower side of the worktable 1. The translation component 4 is used to translate the worktable 1 in the front and back directions, so that the worktable 1 can move from the manual placement station on the front side to the mechanical clamping station on the rear side.

[0027] A pair of first guide rails 7 are fixedly installed on one end of the upper side of the workbench 1. A support plate 5 is fixedly installed between the slides of the pair of first guide rails 7. A tail bracket 6 is fixedly installed on the upper side of the support plate 5. The first guide rails 7 are arranged in the left and right direction, so that the tail bracket 6 and the support plate 5 can move left and right.

[0028] A tensioning mechanism 8 for moving the support plate 5 is installed on the lower side of the workbench 1, and the workbench 1 has a through slot for passing through the tensioning mechanism 8. The moving direction of the workbench 1 is perpendicular to the moving direction of the support plate 5. The tensioning mechanism 8 is used to provide the support plate 5 with the power to move left and right.

[0029] The other end of the upper side of the workbench 1 is fixedly installed with a head clamping seat 3, the workbench 1 is installed with a lifting clamp 2 for supporting the pull wire, the head clamping seat 3 is used for placing the head of the pull wire, the tail clamping seat 6 is used for placing the tail of the pull wire, the lifting clamp 2 is used for supporting the middle of the pull wire, and the tensioning mechanism 8 can increase the distance between the head clamping seat 3 and the tail clamping seat 6 during work, and the pull wire is straightened.

[0030] Through the arrangement of the above structure, the pull wire can be conveniently placed and straightened, and the accurate clamping of the clamp in the mechanical clamping station is facilitated.

[0031] Please refer to Figure 2 , the structure of the lifting clamp 2:

[0032] The lifting clamp 2 is located between the through slot and the head clamping seat 3, and the lifting clamp 2 is uniformly distributed 2-3, so as to ensure the uniformity of supporting the pull wire.

[0033] The lifting clamp 2 comprises a bracket 23 and a pneumatic clamp jaw 24, the upper side of the workbench 1 is fixedly installed with the pneumatic clamp jaw 24, the middle of the upper side of the pneumatic clamp jaw 24 is fixedly installed with the bracket 23, and the bracket 23 is rotatably installed with two pairs of lower roller cylinders 21, which are used for supporting the bottom of the pull wire.

[0034] The clamping heads of the pneumatic clamp jaw 24 are symmetrically distributed on the front and back of the bracket 23, the pneumatic clamp jaw 24 can be selected to have one pair of clamping heads or two pairs of clamping heads, which can meet the action requirements of clamping, and the clamping heads of the pneumatic clamp jaw 24 are rotatably installed with upper roller cylinders 22 at one end close to each other, the upper roller cylinders 22 are located above the lower roller cylinders 21, the pneumatic clamp jaw 24 can move the clamping heads and the upper roller cylinders 22 thereon towards each other or away from each other, and realize the opening and closing action, and each pair of upper roller cylinders 22 is used for tightly supporting the upper side of the pull wire in use.

[0035] The symmetrically arranged lower roller cylinders 21 are distributed in a V shape, and the symmetrically arranged upper roller cylinders 22 are distributed in an inverted V shape, which is beneficial to tightly supporting the pull wire, thereby playing a supporting role without affecting the axial translation of the pull wire.

[0036] Please refer to Figure 3 , the structure of the tensioning mechanism 8:

[0037] The tensioning mechanism 8 comprises a supporting seat 81, a spring 82 and a pneumatic cylinder 83, the pneumatic cylinder 83 is fixedly installed on the lower side of the workbench 1, the supporting plate 5 is fixedly installed with the supporting seat 81 on the lower side, and the spring 82 is fixedly installed between the output end of the pneumatic cylinder 83 and the supporting seat 81.

[0038] When the cylinder 83 pushes out the push rod, it can move the support plate 5 to the left through the transmission of the spring 82 and the support base 81, and after reaching the set extension length, the spring 82 still provides a left pushing force to the support base 81 and the support plate 5 to ensure the tension of the pull wire; and after the clamp clamps the pull wire, the cylinder 83 retracts the push rod, and the reset spring 82 and the support plate 5.

[0039] Please refer to Figure 1 , the structure of the translation assembly 4:

[0040] The translation assembly 4 includes a rodless cylinder 41 and a second guide rail 42, and the upper sides of the sliding tables of the rodless cylinder 41 and the second guide rail 42 are fixedly assembled with the workbench 1. The rodless cylinder 41 is centrally arranged, and the second guide rail 42 is arranged in two numbers and symmetrically arranged on both sides of the rodless cylinder 41.

[0041] The rodless cylinder 41 is used to provide power for the forward and backward movement of the workbench 1, and the second guide rail 42 is used to assist in supporting the two ends of the workbench 1 to ensure smooth translation.

[0042] Please refer to Figure 4 , the structure of the head clamping seat 3:

[0043] The head clamping seat 3 includes a positioning pin 31 and a head seat body 34, and the head seat body 34 is fixedly assembled with the workbench 1. The top of the head seat body 34 is provided with a worm gear placing groove 33, the inside rear side of the worm gear placing groove 33 is provided with a positioning groove 32, and the inside left side of the worm gear placing groove 33 is fixedly installed with the positioning pin 31.

[0044] The shapes of the worm gear placing groove 33 and the positioning groove 32 are set according to the shape of the worm gear parts to facilitate positioning and placement, and the positioning pin 31 is used to be inserted with the end buckle of the pull wire.

[0045] Please refer to Figure 3 , the structure of the tail clamping seat 6:

[0046] The tail clamping seat 6 includes a tail seat body 62 and a pull wire placing groove 61, and the tail seat body 62 is fixedly assembled with the support plate 5. The top of the tail seat body 62 is provided with the pull wire placing groove 61, and the shape of the pull wire placing groove 61 is matched with the fixing frame of the tail of the pull wire to facilitate the placement and clamping of the fixing frame.

[0047] The upper side of the workbench 1 is fixedly installed with a reference column 9, which is respectively located at the front side of the lifting clamp 2, the left side of the through groove, and the right side of the head clamping seat 3. The reference column 9 is used to provide a position reference for the sensor on the clamp to ensure the position accuracy of the clamping jaws at all positions on the clamp.

[0048] The working principle of the embodiment:

[0049] Initial positioning stage: The worm gear is manually placed in the worm gear placement groove 33 of the head seat 3, and precise positioning is achieved through the positioning groove 32; the end buckle of the pull line is inserted into the positioning pin 31, and the tail fixing bracket of the pull line is inserted into the pull line placement groove 61 of the tail seat 6; at this time, the chuck of the pneumatic gripper 24 in the lifting clamp 2 is in the open state, and multiple pairs of lower rollers 21 support the middle of the pull line.

[0050] Tensioning adjustment stage: After completion, press the operation button, and the pneumatic grippers 24 in the lifting clamp 2 move closer to each other, so that the upper roller 22 presses against the pull line; then the cylinder 83 of the tensioning mechanism 8 pushes the support seat 81, and the power is transmitted through the spring 82, so that the support plate 5 moves to the left along the first guide rail 7, stretching the pull line to the set tension, ensuring that the pull line is taut.

[0051] Transfer assembly stage: The rodless cylinder 41 of the translation component 4 drives the worktable 1 to move backward to the mechanical clamping station, with the second guide rail 42 providing auxiliary support; the fixture calibrates its position by referencing the column 9, and the tensioning mechanism 8 resets when clamping the pull wire and worm gear, releasing the tension on the pull wire; then the pull wire and worm gear are lifted, and the worm gear is moved a small distance by the gripper of the fixture to align the end buckle with the pin hole; then it is moved to the stamping machine to complete the pin insertion.

[0052] Finished product output stage: The assembled components are conveyed to the next process via a conveyor belt.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning tool for press fitting of a stay and a worm wheel, comprising a worktable (1), characterized in that: The lower side of the workbench (1) is provided with a translation assembly (4), one end of the upper side of the workbench (1) is fixedly provided with a pair of first guide rails (7), a supporting plate (5) is fixedly arranged between the sliding tables of the pair of first guide rails (7), the upper side of the supporting plate (5) is fixedly provided with a tail clamping seat (6), the lower side of the workbench (1) is provided with a tensioning mechanism (8) for moving the supporting plate (5), the workbench (1) is provided with a through slot for passing through the tensioning mechanism (8), and the moving direction of the workbench (1) is perpendicular to the moving direction of the supporting plate (5); the other end of the upper side of the workbench (1) is fixedly provided with a head clamping seat (3), and the workbench (1) is provided with a lifting clamp (2) for supporting a pull wire.

2. The positioning tool for press fitting of a stay wire and a worm wheel according to claim 1, characterized in that: The lifting clamp (2) is located between the through slot and the head clamping seat (3), and the lifting clamp (2) is uniformly distributed in two to three.

3. The tool for positioning the stay and worm wheel press-fit according to claim 1, characterized in that: The lifting clamp (2) comprises a bracket (23) and a pneumatic clamping jaw (24), the upper side of the workbench (1) is fixedly provided with the pneumatic clamping jaw (24), the middle of the upper side of the pneumatic clamping jaw (24) is fixedly provided with the bracket (23), the bracket (23) is rotatably provided with two pairs of lower rollers (21), the clamping heads of the pneumatic clamping jaw (24) are symmetrically arranged on the front and back sides of the bracket (23), and the clamping heads of the pneumatic clamping jaw (24) are rotatably provided with upper rollers (22) at one end close to each other, and the upper rollers (22) are located above the lower rollers (21).

4. The tool for positioning a cable and worm press fit according to claim 3, characterized in that: The symmetrically arranged lower rollers (21) are arranged in a V shape, and the symmetrically arranged upper rollers (22) are arranged in an inverted V shape.

5. The tool for positioning a stay rod and a worm wheel press-fitted according to claim 1, characterized in that: The tensioning mechanism (8) comprises a supporting seat (81), a spring (82) and a pneumatic cylinder (83), the pneumatic cylinder (83) is fixedly arranged on the lower side of the workbench (1), the lower side of the supporting plate (5) is fixedly provided with the supporting seat (81), and the output end of the pneumatic cylinder (83) and the supporting seat (81) are fixedly provided with the spring (82).

6. The tool for positioning a stay rod and a worm wheel press-fitted according to claim 1, characterized in that: The translation assembly (4) comprises a rodless pneumatic cylinder (41) and a second guide rail (42), the upper sides of the sliding tables of the rodless pneumatic cylinder (41) and the second guide rail (42) are fixedly assembled with the workbench (1), the rodless pneumatic cylinder (41) is centrally arranged, and the number of the second guide rails (42) is two and they are symmetrically arranged on the two sides of the rodless pneumatic cylinder (41).

7. The tool for positioning a stay rod and a worm wheel press-fitted according to claim 1, characterized in that: The head clamping seat (3) comprises a positioning pin (31) and a head seat body (34), the head seat body (34) is fixedly assembled with the workbench (1), the top of the head seat body (34) is provided with a worm gear placing groove (33), the inside of the worm gear placing groove (33) is provided with a positioning recess (32) at the back side, and the inside of the worm gear placing groove (33) is fixedly provided with the positioning pin (31) at the left side.

8. The tool for positioning a stay rod and a worm wheel press-fitted according to claim 1, characterized in that: The tail clamping seat (6) comprises a tail seat body (62) and a pull wire placing groove (61), the tail seat body (62) is fixedly assembled with the supporting plate (5), and the top of the tail seat body (62) is provided with the pull wire placing groove (61).

9. The tool for positioning a stay rod and a worm wheel press-fitted according to claim 1, characterized in that: The upper side of the workbench (1) is fixedly provided with reference columns (9), which are respectively located at the front side of the lifting clamp (2), the left side of the through slot and the right side of the head clamping seat (3).

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