Bottom plate inner hole lathe positioning machining tool

Abstract

The utility model provides a bottom plate inner hole lathe positioning and machining tool. The bottom plate inner hole lathe positioning and machining tool comprises a chassis, a base, a jacking piece and a fixing assembly. According to the bottom plate inner hole lathe positioning machining tool, the chassis is arranged, the two bases are installed on the chassis, and the containing grooves are formed in the two bases. The containing grooves in the two bases are used for containing the two ends of the bottom plate correspondingly, the side walls of the containing grooves are further in threaded connection with jacking pieces, and the jacking pieces penetrate through the side walls of the containing grooves in the bases and abut against the bottom plate, so that the ends of the bottom plate are limited to the bases. The position of the bottom plate on the base plate can be conveniently adjusted, the axis of the to-be-machined hole in the bottom plate is located at the axis position of the base plate, then the bottom plate is fixed into the containing groove in the base through the fixing assembly, the to-be-machined hole in the bottom plate is machined, operation is convenient, and the overall machining cost of the bottom plate is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and particularly relates to a positioning and machining tool for the inner hole of a base plate on a lathe. Background Art

[0002] In the production process of auto parts, parts are usually cast and then further processed on the basis of the casting blank. Some parts usually include a mounting surface for installation and an assembly hole located on the mounting surface. During machining, the mounting surface of the part is usually machined first, and then the assembly hole is machined with the mounting surface as the reference. Since the outer shape of the casting is irregular, when machining the assembly hole, it is usually machined on a numerically controlled machine tool. When using a lathe for machining, it is not convenient to clamp and position the part. Summary of the Utility Model

[0003] An embodiment of the utility model provides a positioning and machining tool for the inner hole of a base plate on a lathe, aiming to solve the problem that it is not convenient to position and clamp the base plate when machining the assembly hole on the lathe in the prior art.

[0004] To achieve the above object, the technical solution adopted by the utility model is: to provide a positioning and machining tool for the inner hole of a base plate on a lathe, including:

[0005] A chassis for being mounted on the spindle of a lathe;

[0006] Two bases, both of the two bases are fixedly mounted on the chassis, and placing grooves for accommodating both ends of the base plate are respectively arranged on the two bases, and the two placing grooves are arranged at intervals along the radial direction of the chassis;

[0007] A tightening member threadedly connected to the side wall of the placing groove, and the end of the tightening member can abut against the side wall of one end of the base plate;

[0008] A fixing assembly is arranged between the base and the base plate for fixing both ends of the base plate to the base. In a possible implementation manner, the tightening members are threadedly connected to the inner walls on both sides of the placing groove.

[0009] In a possible implementation manner, the tightening member on one side of the chassis on one base is inclined towards the other base in the direction close to the base plate.

[0010] In a possible implementation manner, the fixing assembly includes:

[0011] A positioning member penetrates through the base plate and is slidably arranged inside a through hole on the base plate, and the positioning member is threadedly connected to the bottom of the placing groove on one of the bases;

[0012] A pressing assembly is arranged between the other base and the bottom plate and is used to press the other end of the bottom plate into the placement groove on the base.

[0013] In a possible implementation manner, the pressing assembly includes:

[0014] A pressing plate, which includes a first wing plate for abutting against the bottom plate and a second wing plate arranged perpendicular to the first wing plate, and the second wing plate is used to abut against the bottom of the placement groove;

[0015] A pressing member is arranged through the middle of the first wing plate and is threadedly connected to the base.

[0016] In a possible implementation manner, cushion blocks are detachably installed inside the placement grooves on the two bases, and the positioning member and the pressing member are respectively threadedly connected to the cushion blocks on the two bases.

[0017] In a possible implementation manner, a support assembly for supporting the middle part of the bottom plate is further arranged between the two bases.

[0018] In a possible implementation manner, the support assembly includes:

[0019] A support seat, which is fixedly installed on the chassis;

[0020] A support member, which is threadedly connected to the support seat, and one end of the support member abuts against the bottom plate.

[0021] In a possible implementation manner, a positioning pin is fixedly installed inside the placement groove of one of the bases on the chassis (1), and the end of the bottom plate can abut against the positioning pin for positioning the position of the bottom plate.

[0022] In the solution shown in the embodiment of the present application, compared with the prior art, by providing a chassis, the chassis is of a circular structure. When the chassis is installed on the main shaft of the lathe, the chassis is coaxially arranged with the main shaft. Two bases are installed on the chassis, and placement grooves are arranged on both bases. The placement grooves on the two bases are respectively used to place the two ends of the bottom plate, and a tightening member is also threadedly connected to the side wall of the placement groove. The tightening member is a bolt, and the tightening member penetrates through the side wall of the placement groove on the base and abuts against the bottom plate, so as to limit the end of the bottom plate on the base. It is convenient to adjust the position of the bottom plate on the chassis to make the axis of the hole to be machined on the bottom plate located at the axis position on the chassis, and then use the fixing assembly to fix the bottom plate inside the placement groove on the base to machine the hole to be machined on the bottom plate, which is convenient to operate and saves the overall processing cost of the bottom plate. Description of the Drawings

[0023] Figure 1Schematic structural diagram of the positioning and machining tooling for the inner hole of the bottom plate provided by the embodiment of the present utility model;

[0024] Figure 2 Schematic structural diagram of the pressing component provided by the embodiment of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. Chassis; 2. Base; 3. Tightening member; 4. Fixing component; 41. Positioning member; 42. Pressing component; 43. Pressing plate; 431. First wing plate; 432. Second wing plate; 44. Pressing member; 5. Bottom plate; 6. Spacer block; 7. Support component; 71. Support seat; 72. Support member; 8. Positioning pin. Specific implementation manners

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] Please refer to Figure 1 and Figure 2 simultaneously. Now, the positioning and machining tooling for the inner hole of the bottom plate provided by the present utility model will be described. The positioning and machining tooling for the inner hole of the bottom plate includes a chassis 1, a base 2, a tightening member 3 and a fixing component 4. The chassis 1 is used to be installed on the main shaft of the lathe; the number of the bases 2 is two, and the two bases 2 are both fixedly installed on the chassis 1, and placing grooves for accommodating both ends of the bottom plate 5 are respectively provided on the two bases 2, and the two placing grooves are arranged at intervals along the radial direction of the chassis 1; the tightening member 3 is threadedly connected to the side wall of the placing groove, and the end of the tightening member 3 can abut against the side wall of one end of the bottom plate 5; the fixing component 4 is arranged between the base 2 and the bottom plate 5 and is used to fix both ends of the bottom plate 5 to the base 2.

[0029] The positioning and machining tooling for the inner hole of the bottom plate provided in this embodiment, compared with the prior art, is provided with a chassis 1. The chassis 1 is of a circular structure. When the chassis 1 is installed on the main shaft of the lathe, the chassis 1 is coaxially arranged with the main shaft. Two bases 2 are installed on the chassis 1, and placing grooves are arranged on both of the two bases 2. The placing grooves on the two bases 2 are respectively used to place both ends of the bottom plate 5, and a tightening member 3 is also threadedly connected to the side wall of the placing groove. The tightening member 3 is a bolt. The tightening member 3 penetrates through the side wall of the placing groove on the base 2 and abuts against the bottom plate 5, thereby limiting the end of the bottom plate 5 on the base 2. It is convenient to adjust the position of the bottom plate 5 on the chassis 1 to make the axis of the hole to be machined on the bottom plate 5 located at the axis position on the chassis 1, and then the fixing assembly 4 is used to fix the bottom plate 5 inside the placing groove on the base 2 to machine the hole to be machined on the bottom plate 5, which is convenient to operate and saves the overall machining cost of the bottom plate 5.

[0030] Preferably, in this embodiment, the chassis 1 and the base 2 are of an integrally cast structure.

[0031] Optionally, in this embodiment, the position of the bottom plate 5 can be adjusted by adding gaskets at some positions inside the placing groove away from the tightening member 3. The gasket is located on the side of the bottom plate 5 away from the tightening member 3.

[0032] In some embodiments, the above-mentioned tightening member 3 can adopt a structure such as Figure 1 、 Figure 2 shown in the figure. Referring to Figure 1 、 Figure 2 , the tightening member 3 is threadedly connected to both inner side walls of the placing groove. Two tightening members 3 are threadedly connected to the base 2. The two tightening members 3 are oppositely arranged on two opposite side walls of the placing groove, and are used to squeeze the end of the bottom plate 5 between the two tightening members 3, and the position of the bottom plate 5 is adjusted by adjusting the position between the tightening members 3. It is more convenient to adjust the position of the bottom plate 5 when installing the bottom plate 5.

[0033] Preferably, in this embodiment, the tightening member 3 penetrates through the side wall of the placing groove, and a fixing member is also threadedly connected to the tightening member 3. The fixing member abuts against the outside of the base 2. When the end of the tightening member 3 abuts against the end of the bottom plate 5, the tightening member 3 can be fixed to the base 2 by tightening the fixing member to prevent the tightening member 3 from loosening during the machining process.

[0034] In some embodiments, the above-mentioned tightening member 3 can adopt a structure such as Figure 1 shown in the figure. Refer to Figure 1, the tightening member 3 on one side base 2 on the chassis 1 is inclined towards the other side base 2 in a direction close to the bottom plate 5. The lengths of the tightening members 3 on the two bases 2 are arranged at an angle. The two tightening members 3 on one side base 2 are coaxially arranged, and the two tightening members 3 on the other side base 2 are arranged at an angle, and the chain of each tightening member 3 forms a V-shaped structure for supporting the bottom plate 5, which can position the position of the bottom plate 5 along the arrangement direction of the two bases 2. When machining multiple bottom plates 5, the bottom plates 5 can be roughly positioned through the tightening members 3 arranged at an angle, which is more convenient for batch machining of the bottom plates 5.

[0035] In some embodiments, the above fixing assembly 4 can adopt a structure such as Figure 1 , Figure 2 shown. Referring also to Figure 2 , the fixing assembly 4 includes a positioning member 41 and a pressing assembly 42. The positioning member 41 penetrates through the bottom plate 5 and is slidably arranged inside the through hole on the bottom plate 5, and the positioning member 41 is threadedly connected to the bottom of the placement groove on one of the bases 2; the pressing assembly 42 is arranged between the other base 2 and the bottom plate 5 for pressing the other end of the bottom plate 5 into the placement groove on the base 2. A through hole for installing a bolt is provided at one end of the bottom plate 5. And a positioning member 41 is threadedly connected to the base 2 corresponding to the end of the bottom plate 5 provided with the through hole. The positioning member 41 is a screw rod, and a guiding part slidably matched with the through hole is provided in the middle of the positioning member 41. Through the setting of the positioning member 41, the installation position of the bottom plate 5 can be initially positioned, and then the position of the bottom plate 5 is further adjusted with the positioning member 41 as the center. Finally, the bottom plate 5 is fixed to the chassis 1 through the tightening member 3 and the pressing assembly 42, further improving the stability and convenience of the installation position of the bottom plate 5.

[0036] In some embodiments, the above pressing assembly 42 can adopt a structure such as Figure 1 , Figure 2 shown. Referring also to Figure 1 , Figure 2 , the pressing assembly 42 includes a pressing plate 43 and a pressing member 44. The pressing plate 43 includes a first wing plate 431 for abutting against the bottom plate 5 and a second wing plate 432 perpendicular to the first wing plate 431, and the second wing plate 432 is used for abutting against the bottom of the placement groove; the pressing member 44 penetrates through the middle of the first wing plate 431 and is threadedly connected to the base 2. The pressing plate 43 is of an overall L-shaped structure. When in use, the end of the first wing plate 431 abuts against the side of the bottom plate 5 away from the chassis 1 and presses the bottom plate 5 against the base 2. An oblong through hole for accommodating the pressing member 44 is provided on the first wing plate 431. The second wing plate 432 abuts against the base 2 and plays a role in supporting the first wing plate 431. By rotating the pressing member 44, the first wing plate 431 can be pressed against the bottom plate 5.

[0037] Specifically, in this embodiment, the pressing member 44 is a bolt, and the nut on the bolt is used to press against the first wing plate 431, thereby pressing the first wing plate 431 against the bottom plate 5.

[0038] In some embodiments, the above-mentioned base 2 can adopt the structure as Figure 1 , Figure 2 shown. Referring to Figure 1 , Figure 2 , cushion blocks 6 can be detachably installed inside the placement grooves on both base 2s, and the positioning member 41 and the pressing member 44 are respectively threadedly connected to the cushion blocks 6 on the two base 2s. The base 2 and the chassis 1 are integrally formed structures. The cushion blocks 6 are fixedly installed inside the placement grooves of the base 2 through bolts, and threaded holes for installing the positioning member 41 and the pressing member 44 are respectively provided on the cushion blocks 6 on the two base 2s. The threaded holes are prone to damage during use, and can be replaced by replacing the cushion blocks 6 after damage in the later stage, reducing the replacement cost of the entire chassis 1.

[0039] Specifically, in this embodiment, when the bottom plate 5 is installed inside the placement groove, it abuts against the cushion block 6. The cushion block 6 can be processed separately and then installed on the base 2, which is convenient for processing.

[0040] In some embodiments, the above-mentioned bottom plate 5 can adopt the structure as Figure 1 shown. Referring to Figure 1 , a support assembly 7 for supporting the middle part of the bottom plate 5 is further provided between the two base 2s. The support assembly 7 is used to support the middle part of the bottom plate 5. When the two ends of the bottom plate 5 are pressed against the two base 2s by the positioning member 41 and the pressing assembly 42, in order to prevent the bottom plate 5 from deforming, the support assembly 7 is used to support the middle part of the bottom plate 5, so that the bottom plate 5 remains flat, and prevent the bottom plate 5 from deforming during the clamping process and affecting the machining accuracy of the holes to be machined.

[0041] In some embodiments, the above-mentioned support assembly 7 can adopt the structure as Figure 1 shown. Referring to Figure 1 , the support assembly 7 includes a support base 71 and a support member 72. The support base 71 is fixedly installed on the chassis 1; the support member 72 is threadedly connected to the support base 71, and one end of the support member 72 abuts against the bottom plate 5. The support base 71 and the chassis 1 are integrally formed structures. The support member 72 is threadedly connected to the support base 71. One end of the support member 72 is threadedly connected to the support base 71, and the other end of the support member 72 is used to support the side of the bottom plate 5 close to the chassis 1. By rotating the support member 72, the position of the support member 72 on the support base 71 can be adjusted. Thus, the support member 72 can stably support the bottom plate 5, avoiding deformation of the bottom plate 5 during clamping or machining.

[0042] In some embodiments, the above-mentioned base 2 can adopt the structure as Figure 2The structure shown. Refer to Figure 2 , a positioning pin 8 is fixedly installed inside the placement groove of one of the bases 2 on the chassis 1, and the end of the bottom plate 5 can abut against the positioning pin 8 for positioning the position of the bottom plate 5. The positioning pin 8 and the positioning member 41 are respectively installed on two bases 2, and the positioning pin 8 is installed inside the placement groove, and one end of the positioning pin 8 extends out of the bottom surface of the placement groove. When the bottom plate 5 is installed inside the placement groove, the end of the bottom plate 5 abuts against the positioning pin 8, and the position of the bottom plate 5 along its length direction can be further positioned. And when the end of the bottom plate 5 abuts against the positioning pin 8, the positioning member 41 can just pass through the through hole of the bottom plate 5 and be threadedly connected inside the threaded hole at the bottom of the corresponding placement groove.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning and machining tooling for an inner hole of a lathe bed, characterized in that Comprising: A chassis (1) for mounting on the spindle of a lathe; Two bases (2) are fixedly mounted on the chassis (1), and placing grooves for receiving both ends of a base plate (5) are respectively provided on the two bases (2), and the two placing grooves are spaced apart along the radial direction of the chassis (1); A tightening member (3) is threadedly connected to the side wall of the placing groove, and the end of the tightening member (3) can abut against the side wall of one end of the base plate (5); A fixing assembly (4) is arranged between the base (2) and the base plate (5) for fixing both ends of the base plate (5) to the base (2).

2. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 1, characterized in that, The tightening members (3) are threadedly connected to the inner walls on both sides of the placing groove.

3. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 2, characterized in that, The tightening member (3) on one side of the chassis (1) on the base (2) is inclined towards the other base (2) in the direction close to the base plate (5).

4. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 1, characterized in that, The fixing assembly (4) includes: A positioning member (41) penetrates through the base plate (5) and is slidably arranged inside a through hole on the base plate (5), and the positioning member (41) is threadedly connected to the bottom of the placing groove on one of the bases (2); A pressing assembly (42) is arranged between the other base (2) and the base plate (5) for pressing the other end of the base plate (5) inside the placing groove on the base (2).

5. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 4, characterized in that, The pressing assembly (42) includes: A pressing plate (43), the pressing plate (43) includes a first wing plate (431) for abutting against the base plate (5) and a second wing plate (432) perpendicular to the first wing plate (431), and the second wing plate (432) is used for abutting against the bottom of the placing groove; A pressing member (44) penetrates through the middle of the first wing plate (431) and is threadedly connected to the base (2).

6. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 5, characterized in that Pad blocks (6) are detachably mounted inside the placing grooves on the two bases (2), and the positioning member (41) and the pressing member (44) are respectively threadedly connected to the pad blocks (6) on the two bases (2).

7. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 1, characterized in that, A support assembly (7) for supporting the middle of the base plate (5) is further arranged between the two bases (2).

8. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 7, characterized in that, The support assembly (7) includes: A support seat (71) fixedly mounted on the chassis (1); A support member (72) is threadedly connected to the support seat (71), and one end of the support member (72) abuts against the base plate (5).

9. The positioning and machining tooling for the inner hole of the bottom plate lathe according to claim 1, characterized in that, A positioning pin (8) is fixedly mounted inside the placing groove of one of the bases (2) on the chassis (1), and the end of the base plate (5) can abut against the positioning pin (8) for positioning the position of the base plate (5).

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