Automobile brake drum machining and positioning device

Abstract

The utility model relates to the technical field of brake drum machining, and discloses an automobile brake drum machining positioning device which comprises a bottom plate and a brake drum body and further comprises a supporting frame fixedly connected to the top of the bottom plate, the top of the supporting frame is fixedly connected with a supporting disc, a cavity, a groove and a cylindrical groove are formed in the supporting disc, and the supporting disc is fixedly connected with the bottom plate. The cavity, the groove and the cylindrical groove are communicated with one another; according to the device, the position of the brake drum body can be limited, so that the problem that the machining effect of the brake drum body is affected due to position deviation of the brake drum body is solved, in addition, a worker can conveniently install the template body, and a cross rod and a positioning plate can assist in fixing the position of the template body; the problems that in the machining process of part of automobile brake drums at present, it is inconvenient for workers to fix the position between the brake drum and a trepanning template quickly, and the brake drum trepanning effect is likely to be affected due to the fact that the position of the brake drum deviates are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drum processing, in particular to a positioning device for automobile brake drum processing. Background Technique

[0002] The drum brake has been applied to automobiles for nearly a century. Due to its reliability and strong braking force, the drum brake is still configured on many vehicle models today. During the processing of the automobile brake drum, an installation hole needs to be opened at the top for subsequent installation and use.

[0003] At present, before the punching process of the automobile brake drum, the staff usually places the brake drum on the support frame. After that, after the staff places the punching template on the brake drum, the punching template can be squeezed through the connection between the positioning shaft and the threaded rod to limit and fix the relative position between the punching template and the brake drum for subsequent punching. However, during this process, the position of the brake drum is prone to deviation, which is likely to affect the punching position. Therefore, when installing the punching template, the staff needs to continuously tap and adjust the position of the brake drum. This process is not only laborious but also has relatively poor accuracy, which is likely to affect the punching effect. In addition, the method of squeezing and positioning the punching template through the cooperation of the positioning shaft and the threaded rod is time-consuming and laborious in actual use, which is likely to affect the processing efficiency of the brake drum. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning device for automobile brake drum processing to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A positioning device for automobile brake drum processing, including a bottom plate and a brake drum body, and further including:

[0006] A support frame fixedly connected to the top of the bottom plate. The top of the support frame is fixedly connected with a support plate. A cavity, a groove and a cylindrical groove are opened inside the support plate. The cavity, the groove and the cylindrical groove are communicated with each other. The inner wall of the brake drum body is in contact with the surface of the support plate. The top of the support plate is fixedly connected with a positioning rod;

[0007] A storage groove opened on the surface of the support frame. The bottom of the inner wall of the storage groove is fixedly connected with a motor. The output shaft of the motor is fixedly connected with a lead screw. The lead screw rotates through the top of the support frame and the bottom of the support plate. The top of the lead screw is rotationally connected with the top of the inner wall of the cavity;

[0008] An adjustment mechanism installed inside the cavity. A limiting mechanism is installed inside the cylindrical groove. One end of the limiting mechanism is provided with a connecting plate. The surface of the connecting plate is fixedly connected with a first wedge block. The surface of the first wedge block is in contact with the inner wall of the groove;

[0009] An electric push rod fixedly connected to the surface of the support frame. A moving groove is opened at the top of the support frame. A moving mechanism is installed inside the moving groove. The top of the moving mechanism is provided with a template body. A positioning groove is opened on the surface of the template body. The inner wall of the positioning groove is in contact with the surface of the positioning rod. A cross bar is installed on the surface of the moving mechanism. One end of the cross bar is rotatably connected with a positioning plate. An opening groove is opened on the surface of the support frame. The surface of the positioning plate is in contact with the inner wall of the opening groove and the surface of the support frame.

[0010] Preferably, the adjustment mechanism includes a lifting disc, an extension rod and a second wedge block. The surface of the lifting disc is slidably connected with the inner wall of the cavity. The extension rod is fixedly connected to the surface of the lifting disc. The second wedge block is fixedly connected to one end of the extension rod. The surface of the extension rod is in contact with the inner wall of the cavity. The surface of the second wedge block is in contact with the inner wall of the groove. The lead screw threadedly penetrates through the lifting disc. The surface of the second wedge block is in contact with the surface of the first wedge block.

[0011] Preferably, the limiting mechanism includes a disc, a guide rod, a tension spring and a limiting plate. The surface of the disc is slidably connected with the inner wall of the cylindrical groove. The guide rod slidably penetrates through the disc and the support disc. The tension spring is sleeved on the surface of the guide rod. The connecting plate is fixedly connected to one end of the guide rod. The limiting plate is fixedly connected to the other end of the guide rod. The two ends of the tension spring are respectively fixedly connected with the inner wall of the cylindrical groove and the surface of the disc.

[0012] Preferably, the moving mechanism includes a moving plate, a rectangular plate and a column. The surface of the moving plate is slidably connected with the inner wall of the moving groove. The rectangular plate is fixedly connected to the top of the moving plate. The bottom of the rectangular plate is in contact with the top of the bottom plate. The column is fixedly connected to the top of the rectangular plate. The template body is fixedly connected to the top of the column. One end of the piston rod of the electric push rod is fixedly connected to the top of the rectangular plate. The cross bar is fixedly connected to the surface of the column.

[0013] Preferably, the surface of the moving plate is fixedly connected with a short column. A ball is embedded on the surface of the short column. Card slots are opened on both sides of the inner wall of the moving groove. The surfaces of the short column and the ball are both in contact with the inner wall of the card slot.

[0014] Preferably, the thickness of the inner wall of the positioning groove is equal to the diameter of the positioning rod. The height of the top of the positioning rod is greater than the height of the top of the template body.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model can limit the position of the brake drum body through the cooperation of the screw rod, the adjustment mechanism, the connecting plate and the limit mechanism, so as to reduce the problem that the processing effect of the brake drum body is affected by the position deviation of the brake drum body, and it is convenient for the staff to disassemble the processed brake drum body. In addition, the device can facilitate the staff to install the template body through the setting of the moving mechanism, the positioning groove and the positioning rod, and the cross bar and the positioning plate can assist in fixing the position of the template body, which solves the problem that during the processing of some automobile brake drums, the staff is not able to quickly fix the position between the brake drum and the hole opening template, and the deviation of the brake drum position is easy to affect the brake drum hole opening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after the bottom plate, the support frame and the brake drum body are cut apart;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after the support frame and the support plate are cut apart;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model after the support plate is cut open;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the moving mechanism, template body, cross bar and positioning plate in the utility model.

[0022] In the figure: 1, bottom plate; 2, support frame; 3, support plate; 4, cavity; 5, groove; 6, cylindrical groove; 7, storage groove; 8, motor; 9, screw rod; 10, adjustment mechanism; 101, lifting plate; 102, extension rod; 103, second wedge block; 11, limiting mechanism; 111, disc; 112, guide rod; 113, tension spring; 114, limiting plate; 12, positioning plate; 13, cross bar; 14, slot; 15, connecting plate; 16, first wedge block; 17, brake drum body; 18, positioning rod; 19, electric push rod; 20, moving groove; 21, moving mechanism; 211, moving plate; 212, rectangular plate; 213, column; 22, template body; 23, positioning groove; 24, short column. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 As shown, a positioning device for machining an automobile brake drum includes a bottom plate 1 and a brake drum body 17. A support frame 2 is fixedly connected to the top of the bottom plate 1. A support disk 3 is fixedly connected to the top of the support frame 2. A cavity 4, a groove 5, and a cylindrical groove 6 are formed inside the support disk 3. The cavity 4, the groove 5, and the cylindrical groove 6 communicate with each other. A storage groove 7 is formed on the surface of the support frame 2. A motor 8 is fixedly connected to the bottom of the inner wall of the storage groove 7. The output shaft of the motor 8 is fixedly connected to a lead screw 9. The lead screw 9 rotatably penetrates through the top of the support frame 2 and the bottom of the support disk 3. The top of the lead screw 9 is rotatably connected to the top of the inner wall of the cavity 4. An adjustment mechanism 10 is installed inside the cavity 4. A limiting mechanism 11 is installed inside the cylindrical groove 6. One end of the limiting mechanism 11 is installed with a connecting plate 15. A first wedge-shaped block 16 is fixedly connected to the surface of the connecting plate 15. The surface of the first wedge-shaped block 16 is in contact with the inner wall of the groove 5. The inner wall of the brake drum body 17 is in contact with the surface of the support disk 3. A positioning rod 18 is fixedly connected to the top of the support disk 3. An electric push rod 19 is fixedly connected to the surface of the support frame 2. A moving groove 20 is formed at the top of the support frame 2. A moving mechanism 21 is installed inside the moving groove 20. A template body 22 is installed at the top of the moving mechanism 21. A positioning groove 23 is formed on the surface of the template body 22. The inner wall of the positioning groove 23 is in contact with the surface of the positioning rod 18. A cross bar 13 is installed on the surface of the moving mechanism 21. One end of the cross bar 13 is rotatably connected to a positioning plate 12. A slot 14 is formed on the surface of the support frame 2. The surface of the positioning plate 12 is in contact with the inner wall of the slot 14 and the surface of the support frame 2.

[0025] The adjusting mechanism 10 includes a lifting disc 101, an extension rod 102 and a second wedge block 103. The surface of the lifting disc 101 is slidably connected to the inner wall of the cavity 4. The extension rod 102 is fixedly connected to the surface of the lifting disc 101. The second wedge block 103 is fixedly connected to one end of the extension rod 102. The surface of the extension rod 102 is in contact with the inner wall of the cavity 4. The surface of the second wedge block 103 is in contact with the inner wall of the groove 5. The lead screw 9 threadedly penetrates through the lifting disc 101. When the staff starts the motor 8 and the lead screw 9 rotates, the lifting disc 101 can be driven to rise. At this time, the lifting disc 101 can drive the second wedge block 103 to rise through the extension rod 102. The surface of the second wedge block 103 is in contact with the surface of the first wedge block 16. At this time, the second wedge block 103 can squeeze the first wedge block 16, so as to adjust the state of the limiting mechanism 11.

[0026] The limiting mechanism 11 includes a disc 111, a guide rod 112, a tension spring 113 and a limiting plate 114. The surface of the disc 111 is slidably connected to the inner wall of the cylindrical groove 6. The guide rod 112 slidably penetrates through the disc 111 and the support disc 3. The tension spring 113 is sleeved on the surface of the guide rod 112. The connecting plate 15 is fixedly connected to one end of the guide rod 112. The limiting plate 114 is fixedly connected to the other end of the guide rod 112. The two ends of the tension spring 113 are respectively fixedly connected to the inner wall of the cylindrical groove 6 and the surface of the disc 111. When the second wedge block 103 rises and squeezes the first wedge block 16, the connecting plate 15 drives the guide rod 112 to move accordingly. At this time, the guide rod 112 drives the limiting plate 114 to move. The surface of the limiting plate 114 is in contact with the inner wall of the brake drum body 17. Accordingly, the position of the brake drum body 17 can be restricted by the limiting mechanism 11 for subsequent drilling and processing. After that, under the action of the elastic force of the tension spring 113, the guide rod 112 can drive the limiting plate 114 to move, so as to release the limit of the limiting plate 114 on the brake drum body 17, so that the staff can remove the brake drum body 17.

[0027] The moving mechanism 21 includes a moving plate 211, a rectangular plate 212 and a column 213. The surface of the moving plate 211 is slidably connected to the inner wall of the moving groove 20. The rectangular plate 212 is fixedly connected to the top of the moving plate 211. The bottom of the rectangular plate 212 is in contact with the top of the bottom plate 1. The column 213 is fixedly connected to the top of the rectangular plate 212. The template body 22 is fixedly connected to the top of the column 213. One end of the piston rod of the electric push rod 19 is fixedly connected to the top of the rectangular plate 212. The cross bar 13 is fixedly connected to the surface of the column 213. A short column 24 is fixedly connected to the surface of the moving plate 211. A ball is embedded in the surface of the short column 24. Card slots are provided on both sides of the inner wall of the moving groove 20. The surfaces of the short column 24 and the ball are in contact with the inner wall of the card slot. The setting of the ball can increase the stability of the moving plate 211 during movement. When the staff starts the electric push rod 19, the moving plate 211 can be driven to move through the rectangular plate 212. At this time, the template body 22 moves accordingly, and the positioning plate 12 can pass through the slot 14. When the inner wall of the positioning groove 23 is in contact with the surface of the positioning rod 18, the staff can rotate the slot 14 to cooperate with the support frame 2 to limit the position of the template body 22, so as to facilitate the subsequent punching process of the top of the brake drum body 17 using a punching device.

[0028] The thickness of the inner wall of the positioning groove 23 is equal to the diameter of the positioning rod 18. The height of the top of the positioning rod 18 is greater than the height of the top of the template body 22. Accordingly, it is convenient to limit the position of the template body 22 through the cooperation of the positioning rod 18 and the positioning groove 23.

[0029] Working principle: After the staff places the brake drum body 17 on the top of the support plate 3, the motor 8 can be started. The lead screw 9 rotates and drives the lifting plate 101 to rise. The extension rod 102 drives the second wedge block 103 to lift. Accordingly, the second wedge block 103 squeezes the first wedge block 16, and the connecting plate 15 drives the guide rod 112 to move accordingly. The guide rod 112 drives the slot 14 to move, and the brake drum body 17 can be restricted through the slot 14. After that, the staff starts the electric push rod 19, and the rectangular plate 212 drives the moving plate 211 to move accordingly. The column 213 drives the template body 22 to move. Accordingly, the position of the template body 22 is restricted through the cooperation of the positioning groove 23 and the positioning rod 18. During this process, the positioning plate 12 passes through the slot 14. After the staff rotates the positioning plate 12, the position of the template body 22 can be further fixed. Accordingly, the relative position of the template body 22 to the brake drum body 17 can be restricted, so that the staff can use a punching machine to punch the top of the brake drum body 17 according to the through hole on the top of the template body 22.

[0030] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for machining an automobile brake drum, comprising a bottom plate (1) and a brake drum body (17), characterized in that, Further included are: A support frame (2) fixedly connected to the top of the bottom plate (1). A support disk (3) is fixedly connected to the top of the support frame (2). A cavity (4), a groove (5), and a cylindrical groove (6) are formed inside the support disk (3). The cavity (4), the groove (5), and the cylindrical groove (6) are interconnected. The inner wall of the brake drum body (17) is in contact with the surface of the support disk (3). A positioning rod (18) is fixedly connected to the top of the support disk (3). A storage groove (7) formed on the surface of the support frame (2). A motor (8) is fixedly connected to the bottom of the inner wall of the storage groove (7). An output shaft of the motor (8) is fixedly connected to a lead screw (9). The lead screw (9) rotatably penetrates through the top of the support frame (2) and the bottom of the support disk (3). The top of the lead screw (9) is rotatably connected to the top of the inner wall of the cavity (4). An adjusting mechanism (10) installed inside the cavity (4). A limiting mechanism (11) is installed inside the cylindrical groove (6). One end of the limiting mechanism (11) is provided with a connecting plate (15). A first wedge block (16) is fixedly connected to the surface of the connecting plate (15). The surface of the first wedge block (16) is in contact with the inner wall of the groove (5). An electric push rod (19) fixedly connected to the surface of the support frame (2). A moving groove (20) is formed at the top of the support frame (2). A moving mechanism (21) is installed inside the moving groove (20). A template body (22) is installed on the top of the moving mechanism (21). A positioning groove (23) is formed on the surface of the template body (22). The inner wall of the positioning groove (23) is in contact with the surface of the positioning rod (18). A cross bar (13) is installed on the surface of the moving mechanism (21). One end of the cross bar (13) is rotatably connected to a positioning plate (12). A slot (14) is formed on the surface of the support frame (2). The surface of the positioning plate (12) is in contact with the inner wall of the slot (14) and the surface of the support frame (2).

2. The positioning device for machining an automotive brake drum according to claim 1, wherein: The adjusting mechanism (10) includes a lifting disk (101), an extension rod (102), and a second wedge block (103). The surface of the lifting disk (101) is slidably connected to the inner wall of the cavity (4). The extension rod (102) is fixedly connected to the surface of the lifting disk (101). The second wedge block (103) is fixedly connected to one end of the extension rod (102). The surface of the extension rod (102) is in contact with the inner wall of the cavity (4). The surface of the second wedge block (103) is in contact with the inner wall of the groove (5). The lead screw (9) threadedly penetrates through the lifting disk (101). The surface of the second wedge block (103) is in contact with the surface of the first wedge block (16).

3. A positioning device for machining an automotive brake drum according to claim 1, characterized in that: The limiting mechanism (11) includes a disc (111), a guide rod (112), a tension spring (113) and a limiting plate (114). The surface of the disc (111) is slidably connected to the inner wall of the cylindrical groove (6). The guide rod (112) slidably penetrates through the disc (111) and the support disc (3). The tension spring (113) is sleeved on the surface of the guide rod (112). The connecting plate (15) is fixedly connected to one end of the guide rod (112). The limiting plate (114) is fixedly connected to the other end of the guide rod (112). The two ends of the tension spring (113) are respectively fixedly connected to the inner wall of the cylindrical groove (6) and the surface of the disc (111).

4. A positioning device for machining an automotive brake drum according to claim 1, characterized in that: The moving mechanism (21) includes a moving plate (211), a rectangular plate (212) and a column (213). The surface of the moving plate (211) is slidably connected to the inner wall of the moving groove (20). The rectangular plate (212) is fixedly connected to the top of the moving plate (211). The bottom of the rectangular plate (212) is in contact with the top of the bottom plate (1). The column (213) is fixedly connected to the top of the rectangular plate (212). The template body (22) is fixedly connected to the top of the column (213). One end of the piston rod of the electric push rod (19) is fixedly connected to the top of the rectangular plate (212). The cross bar (13) is fixedly connected to the surface of the column (213).

5. The positioning device for machining an automotive brake drum according to claim 4, wherein: A short column (24) is fixedly connected to the surface of the moving plate (211). A ball is embedded on the surface of the short column (24). Card slots are formed on both sides of the inner wall of the moving groove (20). The surfaces of the short column (24) and the ball are in contact with the inner wall of the card slot.

6. The positioning device for machining an automotive brake drum according to claim 1, wherein: The thickness of the inner wall of the positioning groove (23) is equal to the diameter of the positioning rod (18). The height of the top of the positioning rod (18) is greater than the height of the top of the template body (22).

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