Auxiliary positioning device for crank chain wheel press-in machine

Abstract

The utility model relates to the technical field of crank chain wheel processing, in particular to an auxiliary positioning device for a crank chain wheel press-in machine, which comprises a press-in machine main body, an auxiliary positioning component is mounted on a worktable of the press-in machine main body, and a crank chain wheel is clamped and fixed on the auxiliary positioning component; the auxiliary positioning assembly comprises a bottom plate, connecting plates are slidably connected to the transverse sliding rods and the transverse lead screws, positioning parts are slidably connected between the longitudinal sliding rods and the longitudinal lead screws, and four fixing parts are slidably connected to the positions, in grooves, of the middles of the four side edges of the positioning plate; the side wall, close to the crank crankset, of the positioning block is provided with reverse teeth matched with the positioning block. According to the auxiliary positioning device for the crank chain wheel press-in machine, the crank chain wheel can be transversely moved through the transverse sliding rod and the transverse lead screw, the crank chain wheel can be longitudinally moved through the longitudinal sliding rod and the longitudinal lead screw, and the crank chain wheel can be effectively fixed through the positioning block, the reverse teeth and the threaded rod.

Description

Technical Field

[0001] The utility model relates to the technical field of crank chainring processing, and specifically, to an auxiliary positioning device for a crank chainring pressing machine. Background Art

[0002] During the pressing process of the crank chainring, accurate positioning is the key to ensuring the pressing accuracy and product quality. However, when the existing pressing machines perform the crank chainring pressing operation, there are often problems of inaccurate positioning and poor stability, which not only affect the processing efficiency but also may lead to unqualified products, increasing the production cost.

[0003] The utility model patent with the authorization announcement number CN210703342U discloses an auxiliary positioning device, belonging to the technical field of equipment installation, including a support plate and a plurality of positioning blocks. The support plate is provided with a plurality of long strip holes, and the length directions of the long strip holes are respectively collinear with the center of the support plate; the support plate is also provided with multiple columns of first threaded holes, and each column of first threaded holes corresponds to one of the long strip holes; the plurality of positioning blocks correspond to the long strip holes one by one, each positioning block is slidably connected in the corresponding long strip hole, and is provided with a first through hole corresponding to the first threaded hole; the positioning block is provided with a second threaded hole, and the axial direction of the second threaded hole is consistent with the length direction of the corresponding long strip hole.

[0004] Although this technical solution positions the equipment with the help of a plurality of second bolts, and the positioning block can be operated to move along the length direction of the long strip hole according to the size of the equipment to align the first through hole with the corresponding first threaded hole, which is simple and convenient to operate, time-saving and labor-saving, and improves the work efficiency; however, under this technical solution, the crank chainring cannot be fixed, and at the same time, the lateral or longitudinal position adjustment of the crank chainring fixed on the positioning plate cannot be performed. In view of this, we propose an auxiliary positioning device for a crank chainring pressing machine. Summary of the Utility Model

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide an auxiliary positioning device for a crank chainring pressing machine.

[0006] In a first aspect, the present application provides an auxiliary positioning device for a crank chainring pressing machine, including a pressing machine main body, an auxiliary positioning assembly is installed on the workbench of the pressing machine main body, and a crank chainring is clamped and fixed on the auxiliary positioning assembly;

[0007] The auxiliary positioning component includes a bottom plate fixed to the top surface of the workbench of the press main body by a locking bolt. The bottom plate is rotatably connected with two symmetrical transverse sliding rods and a transverse lead screw through bumps welded and fixed at the four corners of its top surface. A connecting plate is slidably connected to both the transverse sliding rod and the transverse lead screw. Longitudinal sliding rods and longitudinal lead screws are respectively rotatably connected between the two ends of the two symmetrically arranged connecting plates. A positioning member is slidably connected between the longitudinal sliding rod and the longitudinal lead screw. The positioning member includes a positioning plate. A groove for accommodating the crank sprocket is opened at the center of the top surface of the positioning plate. Four fixing members are slidably connected in the groove at the middle of the four side edges of the positioning plate. The fixing member includes a positioning block. An inverse tooth adapted thereto is provided on the side wall of the positioning block close to the crank sprocket. A threaded rod is rotatably connected to the center of the side wall of the positioning block away from the inverse tooth.

[0008] According to the technical solution provided by the embodiment of the present application, a first motor is installed on the side wall of the bottom plate close to the transverse lead screw, and the output shaft of the first motor is coaxially connected with the transverse lead screw.

[0009] According to the technical solution provided by the embodiment of the present application, a connecting block is integrally formed on the side wall of the connecting plate away from the positioning member, and a first threaded hole adapted thereto is opened on the connecting block close to the transverse lead screw.

[0010] According to the technical solution provided by the embodiment of the present application, a second motor is installed at the side wall of the connecting plate close to the longitudinal lead screw, and the output shaft of the second motor is coaxially connected with the longitudinal lead screw. The second motor is not in contact with the transverse sliding rod or the transverse lead screw.

[0011] According to the technical solution provided by the embodiment of the present application, fixing blocks are welded and fixed at both ends of the side wall of the positioning plate close to the longitudinal sliding rod and the longitudinal lead screw, and a second threaded hole adapted thereto is opened on the fixing block close to the longitudinal lead screw.

[0012] According to the technical solution provided by the embodiment of the present application, third threaded holes adapted to the threaded rod are opened at the centers of the four side walls of the positioning plate. One end of the threaded rod away from the positioning block extends out of the side wall of the positioning plate and is welded and fixed with a handle. The threaded rod and the handle are not in contact with the longitudinal sliding rod or the longitudinal lead screw.

[0013] According to the technical solution provided by the embodiment of the present application, a limiting block with a rotating groove opened inside is welded and fixed at the center of the side wall of the positioning block away from the inverse tooth, and a rotating block adapted to the inner size of the limiting block is welded and fixed at the end of the threaded rod close to the positioning block.

[0014] In summary, the present technical solution specifically discloses an auxiliary positioning device for a crank chainring pressing machine, which includes a pressing machine main body, an auxiliary positioning assembly is installed on the workbench of the pressing machine main body, and a crank chainring is clamped and fixed on the auxiliary positioning assembly; the auxiliary positioning assembly includes a bottom plate, two symmetrically arranged transverse sliding rods and a transverse screw rod are rotatably connected to the top surface of the bottom plate, connecting plates are slidably connected to both the transverse sliding rods and the transverse screw rod, a longitudinal sliding rod and a longitudinal screw rod are respectively rotatably connected between the two symmetrically arranged connecting plates, a positioning member is slidably connected between the longitudinal sliding rod and the longitudinal screw rod, the positioning member includes a positioning plate, and four fixing members are slidably connected to the middle of the four side edges of the positioning plate in the groove, the fixing member includes a positioning block, and an inverse tooth adapted to the crank chainring is provided on the side wall of the positioning block close to the crank chainring; the crank chainring can be horizontally moved by providing the transverse sliding rod and the transverse screw rod, the crank chainring can be vertically moved by providing the longitudinal sliding rod and the longitudinal screw rod, and the positioning block, the inverse tooth and the threaded rod can effectively fix the crank chainring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the overall structure of the utility model;

[0018] Figure 3 It is an exploded view of the structure of the auxiliary positioning device in the utility model;

[0019] Figure 4 It is an exploded view of the structure of the positioning member in the utility model;

[0020] Figure 5 It is an exploded view of the structure of the fixing member in the utility model;

[0021] In the figure:

[0022] 1. Pressing machine main body;

[0023] 2. Auxiliary positioning component; 21. Base plate; 211. Protrusion; 22. Transverse slide bar; 23. Transverse lead screw; 24. Connecting plate; 241. Connecting block; 2411. First threaded hole; 25. First motor; 26. Longitudinal slide bar; 27. Longitudinal lead screw; 28. Second motor; 29. Positioning member; 291. Positioning plate; 2911. Groove; 2912. Third threaded hole; 292. Fixed block; 2921. Second threaded hole; 293. Fixing member; 2931. Positioning block; 2932. Reverse teeth; 2933. Limiting block; 2934. Threaded rod; 2935. Handle; 2936. Rotating block;

[0024] 3. Crank sprocket. Specific embodiments

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0027] Please refer to Figures 1 - 5 , an auxiliary positioning device for a crank sprocket press, including a press main body 1, an auxiliary positioning component 2 is installed on the workbench of the press main body 1, and a crank sprocket 3 is clamped and fixed on the auxiliary positioning component 2;

[0028] The auxiliary positioning component 2 includes a base plate 21 fixed to the top surface of the workbench of the press main body 1 by a locking bolt. The base plate 21 is rotatably connected with two symmetrically arranged transverse slide bars 22 and a transverse lead screw 23 through protrusions 211 welded and fixed at the four corners of its top surface. Connecting plates 24 are slidably connected to both the transverse slide bar 22 and the transverse lead screw 23. A longitudinal slide bar 26 and a longitudinal lead screw 27 are respectively rotatably connected between the two symmetrically arranged connecting plates 24. A positioning member 29 is slidably connected between the longitudinal slide bar 26 and the longitudinal lead screw 27. The positioning member 29 includes a positioning plate 291. A groove 2911 for accommodating the crank sprocket 3 is opened at the center of the top surface of the positioning plate 291. Four fixing members 293 are slidably connected in the groove 2911 at the middle parts of the four side edges of the positioning plate 291. The fixing member 293 includes a positioning block 2931. A reverse tooth 2932 adapted to it is provided on the side wall of the positioning block 2931 close to the crank sprocket 3. A threaded rod 2934 is rotatably connected to the center of the side wall of the positioning block 2931 away from the reverse tooth 2932.

[0029] In this embodiment, a first motor 25 is installed on the side wall of the bottom plate 21 close to the transverse lead screw 23, and the output shaft of the first motor 25 is coaxially connected to the transverse lead screw 23; the first motor 25 provides power for the rotation of the transverse lead screw 23.

[0030] Further, a connecting block 241 is integrally formed on the side wall of the connecting plate 24 away from the positioning member 29, and a first threaded hole 2411 adapted to it is opened on the connecting block 241 close to the transverse lead screw 23; the adapted first threaded hole 2411 enables the transverse lead screw 23 to be threadedly connected to the corresponding connecting plate 24, so that when the transverse lead screw 23 rotates, it drives the connecting plate 24 to slide along the transverse slide bar 22.

[0031] Secondly, a second motor 28 is installed at the side wall of the connecting plate 24 close to the longitudinal lead screw 27, the output shaft of the second motor 28 is coaxially connected to the longitudinal lead screw 27, and there is no contact between the second motor 28 and the transverse slide bar 22 or the transverse lead screw 23; the second motor 28 provides power for the rotation of the longitudinal lead screw 27.

[0032] Further, fixing blocks 292 are welded and fixed at both ends of the side wall of the positioning plate 291 close to the longitudinal slide bar 26 and the longitudinal lead screw 27, and a second threaded hole 2921 adapted to it is opened on the fixing block 292 close to the longitudinal lead screw 27; the adapted second threaded hole 2921 enables the longitudinal lead screw 27 to be threadedly connected to the positioning plate 291, so that when the longitudinal lead screw 27 rotates, it drives the positioning plate 291 to slide along the longitudinal slide bar 26.

[0033] Secondly, third threaded holes 2912 adapted to the threaded rod 2934 are opened at the centers of the side walls around the positioning plate 291. One end of the threaded rod 2934 away from the positioning block 2931 extends out of the side wall of the positioning plate 291 and is welded and fixed with a handle 2935. Neither the threaded rod 2934 nor the handle 2935 contacts the longitudinal slide bar 26 or the longitudinal lead screw 27; the handle 2935 facilitates the rotation of the threaded rod 2934, so that the positioning block 2931 slides back and forth.

[0034] Further, a limiting block 2933 with a rotating groove opened inside is welded and fixed at the center of the side wall of the positioning block 2931 away from the reverse teeth 2932, and a rotating block 2936 adapted to the inner size of the limiting block 2933 is welded and fixed at the end of the threaded rod 2934 close to the positioning block 2931; the adapted rotating block 2936 and the limiting block 2933 enable the threaded rod 2934 to drive the positioning block 2931 to slide when rotating, so as to fix the crank sprocket 3.

[0035] Working principle: When the auxiliary positioning device for the crank chainring press-in machine of the present utility model is in use, the user first places the crank chainring 3 in the groove 2911, and then rotates the threaded rod 2934 through the handle 2935, so that the positioning block 2931 fixes the crank chainring 3. Then, the first motor 25 is driven to drive the transverse lead screw 23 to rotate, so that the two connecting plates 24 slide horizontally, thereby adjusting the horizontal position of the crank chainring 3. Finally, the second motor 28 is driven to drive the longitudinal lead screw 27 to rotate, so that the positioning plate 291 slides longitudinally, thereby adjusting the longitudinal position of the crank chainring 3 and accurately positioning the crank chainring 3.

[0036] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solution formed by mutually replacing the above features with the technical features disclosed in the present application but not limited to having similar functions.

Claims

1. An auxiliary positioning device for a crankshaft pressing machine, comprising a pressing machine body (1), characterized in that: An auxiliary positioning assembly (2) is installed on the workbench of the pressing machine body (1), and a crank chainring (3) is clamped and fixed on the auxiliary positioning assembly (2); The auxiliary positioning assembly (2) comprises a bottom plate (21) fixed to the top surface of the working table of the pressing machine body (1) by locking bolts, the bottom plate (21) is rotatably connected to two symmetrical transverse slide bars (22) and a transverse screw rod (23) through protrusions (211) welded and fixed at the four corners of the top surface, the transverse slide bars (22) and the transverse screw rod (23) are both slidably connected to connecting plates (24), the two ends of the two symmetrically arranged connecting plates (24) are respectively rotatably connected to longitudinal slide bars (26) and longitudinal screw rods (27), and the longitudinal slide bars (26) and the longitudinal screw rods (27) are slidably connected to the positioning member (2 9), the positioning member (29) comprises a positioning plate (291), a groove (2911) for accommodating the crank chainring (3) is provided at the center of the top surface of the positioning plate (291), four fixing members (293) are slidably connected in the groove (2911) at the middle of the four side edges of the positioning plate (291), and the fixing member (293) comprises a positioning block (2931), and the positioning block (2931) is provided with a reverse tooth (2932) matched therewith at the side wall close to the crank chainring (3), and the positioning block (2931) is rotatably connected to the center of the side wall away from the reverse tooth (2932) with a threaded rod (2934).

2. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: A first motor (25) is installed on a side wall of the bottom plate (21) close to the transverse screw rod (23); an output shaft of the first motor (25) is coaxially connected to the transverse screw rod (23).

3. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: A connecting block (241) is integrally formed on the side wall of the connecting plate (24) away from the positioning member (29), and a first threaded hole (2411) matching the transverse screw rod (23) is provided on the connecting block (241) close to the transverse screw rod (23).

4. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: A second motor (28) is installed on the side wall of the connecting plate (24) close to the longitudinal screw rod (27), and the output shaft of the second motor (28) is coaxially connected to the longitudinal screw rod (27), and the second motor (28) does not contact the transverse sliding rod (22) or the transverse screw rod (23).

5. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: Fixed blocks (292) are welded and fixed at both ends of the side wall of the positioning plate (291) close to the longitudinal sliding rod (26) and the longitudinal screw rod (27), and a second threaded hole (2921) matching the longitudinal screw rod (27) is opened on the fixed block (292) close to the longitudinal screw rod (27).

6. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: The third threaded hole (2912) matched with the threaded rod (2934) is opened at the center of the side walls around the positioning plate (291), and the end of the threaded rod (2934) away from the positioning block (2931) extends out of the side wall of the positioning plate (291) and is welded and fixed with a handle (2935). The threaded rod (2934) and the handle (2935) do not contact the longitudinal sliding rod (26) or the longitudinal screw rod (27).

7. The auxiliary positioning device for a crankshaft pressing machine according to claim 1, characterized in that: A limit block (2933) with a rotation groove provided inside is welded and fixed to the center of the side wall of the positioning block (2931) away from the reverse tooth (2932), and a rotation block (2936) matching the inner size of the limit block (2933) is welded and fixed to the end of the threaded rod (2934) close to the positioning block (2931).

Images