Multi-direction adjustable positioning mechanism

Abstract

The utility model relates to a positioning mechanism, in particular to a multi-direction adjustable positioning mechanism, which solves the problems of complicated structure and high processing difficulty of the existing positioning mechanism. An adjusting straight groove plate is arranged on a workbench, an adjusting straight groove is formed in the adjusting straight groove plate, and a screw penetrates through the adjusting straight groove and a threaded hole in the workbench to connect the adjusting straight groove plate with the workbench; the adjusting arc groove plate is located on the adjusting straight groove plate, a mounting table is arranged on the adjusting arc groove plate, a mounting hole is formed in the mounting table in the horizontal direction, and the extending direction of the mounting hole is perpendicular to the extending direction of the adjusting straight groove; the cylindrical positioning pin is located in the mounting hole, the inner end of the cylindrical positioning pin is used for being matched with the positioning groove of the rotating disc, and the outer end of the cylindrical positioning pin extends out of the mounting hole; two arc-shaped grooves are symmetrically formed in the portions, on the two sides of the mounting table, of the adjusting arc-shaped groove plate, the ends of the two arc-shaped grooves are opposite, and screws penetrate through the arc-shaped grooves and threaded holes in the adjusting straight groove plate to connect the adjusting straight groove plate with the adjusting arc-shaped groove plate.

Description

Technical Field

[0001] The utility model relates to a positioning mechanism, in particular to a multi-directional adjustable positioning mechanism. Background Art

[0002] With the continuous development of the automobile industry, the demand for various automobile parts is also increasing, and the quality requirements for parts are getting higher and higher. Now most automobile parts require traceability. Once a quality problem occurs, it can be traced back to the manufacturer and production batch at the first time. Generally, parts are traced by identification, such as motor housings, etc., usually by marking the parts, and tracing production information through identification. This requires marking the parts after positioning them through tooling. In order to save production costs, the workbench of the existing marking tooling is generally an unprocessed blank surface with an uneven surface. The positioning mechanism of the tooling is set on the workbench, and the parts are placed on the rotating disc, which is placed on the workbench. The positioning mechanism cooperates with the positioning groove on the rotating disc to achieve the alignment of the part marking position. If the positioning mechanism and the positioning groove cannot be aligned due to the uneven surface of the workbench, it may cause the marking position to be incorrect, and the parts need to be disassembled for secondary processing, which increases the workload of personnel.

[0003] The Chinese invention patent with the authorization announcement number CN106451944B discloses an adjustable positioning claw on a stator automatic assembly line, wherein a circular through hole is formed in the center of the positioning plate, a fan-shaped avoidance groove is formed at the four corners of the positioning plate, an arc-shaped step groove is formed on the lower end surface of the positioning plate between the avoidance groove and the circular through hole, the center of the step groove coincides with the center of the avoidance groove, a T-shaped pillar is fixed on the positioning plate at the center of the avoidance groove, one end of the adjustment rod is hinged on the pillar, an adjustment bolt is inserted in the step groove of the positioning plate, and the adjustment bolt passes through the other end of the adjustment rod and is screwed with a first adjustment nut; a guide groove is formed on the adjustment rod above the avoidance groove of the positioning plate, a vertical claw rod is inserted in the avoidance groove of the positioning plate and abuts against the lower end surface of the adjustment rod, a stud is formed on the upper end of the claw rod, and the stud passes through the guide groove of the adjustment rod and is screwed with a second adjustment nut. The above invention patent can be used for positioning mechanism adjustment of marking tooling, but its structure is relatively complex and difficult to process. Utility Model Content

[0004] The utility model aims to solve the technical problems of the existing positioning mechanism that the structure is relatively complex and the processing is relatively difficult, and to provide a multi-direction adjustable positioning mechanism.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-directional adjustable positioning mechanism is arranged on a workbench of a marking tool, and its special features are: it includes an adjustable straight groove plate, an adjustable arc groove plate and a cylindrical positioning pin;

[0007] The adjusting straight slot plate is arranged on the workbench, an adjusting straight slot is opened on the adjusting straight slot plate, and the adjusting straight slot plate is connected to the workbench by screws passing through the adjusting straight slot and the threaded holes on the workbench;

[0008] The adjusting arc slot plate is arranged on the adjusting straight slot plate, and a mounting platform is arranged on the adjusting arc slot plate, and a mounting hole is opened in the mounting platform along the horizontal direction, and the extending direction of the mounting hole is perpendicular to the extending direction of the adjusting straight slot; the cylindrical positioning pin is arranged in the mounting hole, and the inner end of the cylindrical positioning pin is used to cooperate with the positioning slot on the rotating disc, and the outer end of the cylindrical positioning pin extends out of the mounting hole;

[0009] Two arc grooves are symmetrically opened on the adjusting arc groove plates on both sides of the mounting platform, the ends of the two arc grooves are opposite, and the adjusting straight groove plate is connected with the adjusting arc groove plate by screws passing through the arc grooves and the threaded holes on the adjusting straight groove plate.

[0010] Furthermore, the mounting hole is a stepped hole with its large hole facing one side of the rotating disc, and a spring is sleeved on the cylindrical positioning pin, one end of the spring abuts against the stepped surface of the stepped hole, and the other end abuts against a retaining ring provided on the cylindrical positioning pin.

[0011] Furthermore, a butterfly handle is connected to the outer end of the cylindrical locating pin, and a threaded hole is radially opened at the outer end of the cylindrical locating pin; the butterfly handle includes a gripping handle and a mounting tube connected to the gripping handle, the mounting tube is sleeved on the cylindrical locating pin and a limiting hole is opened on the outer wall of the mounting tube corresponding to the position of the threaded hole, and the butterfly handle is fixedly connected to the cylindrical locating pin by screws passing through the limiting hole and the threaded hole.

[0012] Furthermore, a limiting sleeve is arranged on the side wall of the mounting platform close to the butterfly handle, the cross-section of the limiting sleeve is arc-shaped, the arc radius is π / 4, and the inner wall of the limiting sleeve is arranged close to the cylindrical locating pin; an arc-shaped clamping plate is arranged at the end of the mounting tube, the cross-section of the portion where the arc-shaped clamping plate is connected to the mounting tube is arc-shaped, and the arc radius is not greater than π / 2; the cross-section of the end of the arc-shaped clamping plate is also arc-shaped, and the arc radius is smaller than the arc radius of the cross-section of the portion where the arc-shaped clamping plate is connected to the mounting tube.

[0013] Furthermore, the adjusting straight groove plate is a rectangular structure, and the adjusting straight groove is opened on the adjusting straight groove plate along the extension direction of the long side thereof.

[0014] Furthermore, the inner end of the cylindrical positioning pin is a hemispherical structure.

[0015] Furthermore, an abutment plate is provided at the middle position of the inner wall of the adjusting straight slot, the tail of the screw arranged in the adjusting straight slot abuts against the top of the abutment plate, and the top surface of the threaded tail is not higher than the top surface of the adjusting straight slot plate.

[0016] Furthermore, two adjusting straight grooves are provided, and are symmetrically arranged with respect to the center dividing plane of the short side of the adjusting straight groove plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model provides a multi-directional adjustable positioning mechanism, in which an adjusting arc slot plate is arranged on an adjusting straight slot plate, and two arc slots are symmetrically provided on the adjusting arc slot plates on both sides of the mounting platform, the ends of the two arc slots are opposite to each other, screws are provided in the arc slots to be connected with threaded holes on the adjusting straight slot plates, a cylindrical positioning pin for cooperating with the positioning slot on the rotating disk is provided in the mounting hole in the mounting platform, the extension direction of the mounting hole is perpendicular to the extension direction of the adjusting straight slot on the adjusting straight slot plate, if the cylindrical positioning pin cannot be inserted into the positioning slot due to the uneven surface of the workbench, the screw in the adjusting straight slot can be loosened to move the entire positioning mechanism along the extension direction of the adjusting straight slot, and the screw in the arc slot can also be loosened to rotate the adjusting arc slot plate to achieve multi-directional adjustment, the overall structure is simple, and the processing difficulty is small.

[0019] (2) The utility model provides a multi-directional adjustable positioning mechanism that realizes the automatic ejection of the cylindrical positioning pin through the retaining ring, spring and step surface of the mounting hole of the cylindrical positioning pin. In addition, due to the elastic force of the spring, the inner end of the cylindrical positioning pin will not fall out after entering the positioning groove, thereby preventing the positioning from loosening during the marking process.

[0020] (3) The utility model provides a multi-directional adjustable positioning mechanism, in which a limiting sleeve is arranged on the side wall of the mounting platform, and its cross section is in the shape of an arc, and the arc radius is π / 4. An arc-shaped clamping plate is arranged at the end of the mounting tube, and the cross section of the portion where the arc-shaped clamping plate is connected to the mounting tube is in the shape of an arc, and the arc radius is not greater than π / 2; the cross section of the end of the arc-shaped clamping plate is also in the shape of an arc, and the arc radius is smaller than the arc radius of the cross section of the portion where the arc-shaped clamping plate is connected to the mounting tube. With such an arrangement, when the cylindrical positioning pin is pulled out of the positioning groove by the butterfly handle, the butterfly handle can be rotated so that the end face of the arc-shaped clamping plate abuts against the limiting sleeve, thereby locking the cylindrical positioning pin to prevent it from resetting. If resetting is required, the butterfly handle can be rotated to disengage the arc-shaped clamping plate from the limiting sleeve, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a multi-directional adjustable positioning mechanism embodiment of the utility model cooperating with a rotating disc;

[0022] Figure 2for Figure 1 AA section view;

[0023] Figure 3 Schematic diagram of the embodiment of the utility model in a non-working state ( Figure 1 A local enlarged structural diagram at center);

[0024] Figure 4 It is a schematic diagram of an embodiment of the utility model in a working state;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of adjusting the straight groove plate in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjusting arc slot plate in the embodiment of the utility model;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the cylindrical positioning pin in the embodiment of the utility model.

[0028] The following are the descriptions of the reference numerals:

[0029] 1-adjusting straight groove plate, 11-adjusting straight groove, 12-abutting plate; 2-adjusting arc groove plate, 21-mounting table,

[0030] 22-arc groove; 3-cylindrical positioning pin, 31-retaining ring; 4-workbench, 5-rotating disc, 51-positioning groove,

[0031] 52-first positioning pin, 53-second positioning pin; 6-butterfly handle, 61-holding handle, 62-installation cylinder,

[0032] 63-arc clamping plate; 7-spring, 8-limiting clamping sleeve. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Reference Figure 1-Figure 7 A multi-directional adjustable positioning mechanism of the utility model is arranged on a workbench 4 of a marking tool. A rotating disc 5 for preventing parts is also arranged on the workbench 4. A positioning groove 51 is opened on the rotating disc 5. In order to position the parts placed on the rotating disc 5, a first positioning pin 52 and a second positioning pin 53 are respectively arranged on the rotating disc 5. The first positioning pin 52 and the second positioning pin 53 cooperate with the positioning pin holes of the motor housing placed on the rotating disc 5 to realize the positioning of the motor housing on the rotating disc 5.

[0035] The utility model is a multi-directional adjustable positioning mechanism comprising an adjustable straight slot plate 1, the structure of which is as follows: Figure 5As shown, the adjusting straight groove plate 1 is a rectangular structure and is arranged on the workbench 4. An adjusting straight groove 11 is opened on the adjusting straight groove plate 1 along the extension direction of its long side. There are two adjusting straight grooves 11, and they are symmetrically arranged about the center dividing surface of the short side of the adjusting straight groove plate 1. The adjusting straight groove plate 1 is connected to the threaded holes on the workbench 4 through screws arranged in the adjusting straight grooves 11.

[0036] An adjusting arc slot plate 2 is arranged on the adjusting straight slot plate 1, and a mounting platform 21 is arranged on the adjusting arc slot plate 2. Two arc slots 22 are symmetrically provided on the adjusting arc slot plate 2 on both sides of the mounting platform 21, and the ends of the two arc slots 22 are opposite to each other, and screws are arranged in the two arc slots 22 for connecting with the threaded holes on the adjusting straight slot plate 1. In order to prevent the adjusting arc slot plate 2 from being affected in its rotation, an abutment plate 12 is arranged in the middle of the inner wall of the adjusting straight slot 11, and the tail of the screw arranged in the adjusting straight slot 11 abuts against the top of the abutment plate 12, and the top surface of the tail of the screw is not higher than the top surface of the adjusting straight slot plate 1.

[0037] A mounting hole is provided in the mounting platform 21 in the horizontal direction, and the extending direction of the mounting hole is perpendicular to the extending direction of the adjusting straight groove 11. The cylindrical positioning pin 3 used to cooperate with the positioning groove 51 is arranged in the mounting hole, and the inner end of the cylindrical positioning pin 3 is used to cooperate with the positioning groove 51 on the rotating disc 5. In order to facilitate the inner end of the cylindrical positioning pin 3 to enter the positioning groove 51, the inner end of the cylindrical positioning pin 3 is a hemispherical structure. The outer end of the cylindrical positioning pin 3 extends out of the mounting hole, and the inner end of the cylindrical positioning pin 3 can be pushed or pulled outside the mounting hole to make the inner end of the cylindrical positioning pin 3 enter or exit the positioning groove 51.

[0038] If the cylindrical locating pin 3 is pushed by manpower to make its inner end enter the locating groove 51, when the clamp is in use, if the rotating disk 5 vibrates, etc., the cylindrical locating pin 3 may fall out of the locating groove 51. Therefore, in the present embodiment, the mounting hole is set as a stepped hole, and its large hole faces the side of the rotating disk 5. A spring 7 is sleeved on the cylindrical locating pin 3, and one end of the spring 7 abuts against the stepped surface of the stepped hole, and the other end abuts against the retaining ring 31 provided on the cylindrical locating pin 3. In this way, relying on the elastic force of the spring 7, it can be ensured that the cylindrical locating pin 3 will not fall out after being inserted into the locating groove 51. However, at this time, if you want to pull the cylindrical locating pin 3 out of the locating groove 51, due to the elastic force of the spring 7, you can manually pull the retaining ring 31 outside the mounting hole to prevent it from falling out. The cylindrical locating pin 3 will be very strenuous, so a butterfly handle 6 is connected to the cylindrical locating pin 3. The butterfly handle 6 includes a gripping handle 61 and a mounting tube 62 connected to the gripping handle 61. The mounting tube 62 is sleeved on the cylindrical locating pin 3. A threaded hole is radially opened on the outer end of the cylindrical locating pin 3, and a limiting hole is opened on the outer wall of the mounting tube 62 corresponding to the position of the threaded hole. The butterfly handle 6 is fixedly connected to the cylindrical locating pin 3 by passing screws through the limiting hole and the threaded hole. In this way, the cylindrical locating pin 3 and the butterfly handle 6 are detachably connected together. If you want to replace the cylindrical locating pin 3, you can remove the screws, which will not hinder normal maintenance and replacement. At the same time, pulling the cylindrical locating pin 3 through the butterfly handle 6 will be more labor-saving.

[0039] At this time, although the cylindrical locating pin 3 can be easily pulled out of the locating groove 51, the operator must keep pulling the butterfly handle 6 to prevent the cylindrical locating pin 3 from being reset. In order to reduce the workload of the operator, a limit clamping sleeve 8 is provided on the side wall of the mounting platform 21 close to the butterfly handle 6. The cross section of the limit clamping sleeve 8 is an arc shape with an arc angle of π / 4, and the inner wall of the limit clamping sleeve 8 is arranged close to the cylindrical locating pin 3; an arc clamping plate 63 is provided at the end of the mounting cylinder 62, and the arc clamping plate 6 The cross section of the portion where the arc clamping plate 63 is connected to the mounting tube 62 is in the shape of an arc, and the arc radius is not greater than π / 2. In the present embodiment, the arc radius is π / 2. The cross section of the end portion of the arc clamping plate 63 is also in the shape of an arc, and the arc radius is smaller than the arc radius of the cross section of the portion where the arc clamping plate 63 is connected to the mounting tube 62. In this way, when the cylindrical positioning pin 3 is pulled out of the positioning groove 51 by the butterfly handle 6, the butterfly handle 6 can be rotated so that the end face of the arc clamping plate 63 abuts against the limiting sleeve 8. At this time, the arc clamping plate 63 is in the shape of an arc. Figure 3 In the state shown, the cylindrical positioning pin 3 is locked to prevent it from being reset. If it needs to be reset, the butterfly handle 6 is rotated to make the arc-shaped clamping plate 63 disengage from the limiting clamping sleeve 8.

[0040] During use, if the cylindrical locating pin 3 cannot be inserted into the locating groove 51 due to the uneven surface of the workbench 4, the screw in the adjusting straight groove 11 can be loosened at this time, which will push the entire positioning mechanism to move along the extension direction of the adjusting straight groove 11. When it reaches the appropriate position, tighten the screw, and then loosen the screw in the arc groove 22, rotate the entire adjusting arc groove plate 2 until the cylindrical locating pin 3 can be inserted into the locating groove 51, rotate the butterfly handle 6 to disengage the arc clamping plate 63 from the limiting clamping sleeve 8, and the cylindrical locating pin 3 is inserted into the locating groove 51 under the action of the elastic force of the spring 7 to complete the positioning.

[0041] The embodiments described above are merely descriptions of the specific implementation methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-directional adjustable positioning mechanism, arranged on a workbench (4) of a marking tool, characterized in that: It comprises an adjusting straight slot plate (1), an adjusting arc slot plate (2) and a cylindrical positioning pin (3); The adjusting straight groove plate (1) is arranged on the workbench (4), an adjusting straight groove (11) is provided on the adjusting straight groove plate (1), and the adjusting straight groove plate (1) is connected to the workbench (4) by screws passing through the adjusting straight groove (11) and threaded holes on the workbench (4); The adjusting arc slot plate (2) is arranged on the adjusting straight slot plate (1), and a mounting platform (21) is arranged on the adjusting arc slot plate (2), and a mounting hole is opened in the mounting platform (21) along the horizontal direction, and the extension direction of the mounting hole is perpendicular to the extension direction of the adjusting straight slot (11); the cylindrical positioning pin (3) is arranged in the mounting hole, and the inner end of the cylindrical positioning pin (3) is used to cooperate with the positioning slot (51) on the rotating disk (5), and the outer end of the cylindrical positioning pin (3) protrudes from the mounting hole; Two arc grooves (22) are symmetrically formed on the adjusting arc groove plate (2) on both sides of the mounting platform (21), and the ends of the two arc grooves (22) are opposite to each other. The adjusting straight groove plate (1) is connected with the adjusting arc groove plate (2) by screws passing through the arc grooves (22) and threaded holes on the adjusting straight groove plate (1).

2. The multi-directional adjustable positioning mechanism according to claim 1, characterized in that: The mounting hole is a stepped hole, with the large hole facing one side of the rotating disc (5). A spring (7) is sleeved on the cylindrical positioning pin (3), one end of the spring (7) abuts against the stepped surface of the stepped hole, and the other end abuts against a retaining ring (31) provided on the cylindrical positioning pin (3).

3. The multi-directional adjustable positioning mechanism according to claim 2, characterized in that: The outer end of the cylindrical positioning pin (3) is connected to a butterfly handle (6), and a threaded hole is radially opened on the outer end of the cylindrical positioning pin (3); the butterfly handle (6) comprises a gripping handle (61) and a mounting tube (62) connected to the gripping handle (61); the mounting tube (62) is sleeved on the cylindrical positioning pin (3) and a limiting hole is opened on the outer wall of the mounting tube (62) corresponding to the position of the threaded hole; the butterfly handle (6) is fixedly connected to the cylindrical positioning pin (3) by screws passing through the limiting hole and the threaded hole.

4. The multi-directional adjustable positioning mechanism according to claim 3, characterized in that: A limiting clamping sleeve (8) is arranged on the side wall of the mounting platform (21) close to the butterfly handle (6), the cross section of the limiting clamping sleeve (8) is arc-shaped, the arc radius is π / 4, and the inner wall of the limiting clamping sleeve (8) is arranged close to the cylindrical positioning pin (3); an arc-shaped clamping plate (63) is arranged at the end of the mounting tube (62), the cross section of the portion where the arc-shaped clamping plate (63) and the mounting tube (62) are connected is arc-shaped, and the arc radius is not greater than π / 2; the cross section of the end of the arc-shaped clamping plate (63) is also arc-shaped, and the arc radius is smaller than the arc radius of the cross section of the portion where the arc-shaped clamping plate (63) and the mounting tube (62) are connected.

5. The multi-directional adjustable positioning mechanism according to claim 1, characterized in that: The adjusting straight groove plate (1) is a rectangular structure, and the adjusting straight groove (11) is provided on the adjusting straight groove plate (1) along the extending direction of the long side thereof.

6. The multi-directional adjustable positioning mechanism according to claim 2, characterized in that: The inner end of the cylindrical positioning pin (3) is a hemispherical structure.

7. The multi-directional adjustable positioning mechanism according to claim 2, characterized in that: An abutment plate (12) is provided at the middle of the inner wall of the adjusting straight slot (11), the tail of the screw arranged in the adjusting straight slot (11) abuts against the top of the abutment plate (12), and the top surface of the tail of the screw is not higher than the top surface of the adjusting straight slot plate (1).

8. The multi-directional adjustable positioning mechanism according to claim 5, characterized in that: The adjusting straight grooves (11) are provided with two and are symmetrically arranged with respect to the middle dividing plane of the short side of the adjusting straight groove plate (1).

Images