A positioning tool for a fixed base

Abstract

The utility model discloses a kind of fixed base positioning tool, it is related to machining technical field, the problem that fixed base adopts existing clamping mode to exist clamping effect is poor, position degree cannot be unified is solved.The positioning tool includes: positioning base, the top surface of the positioning base is formed with the positioning plane for supporting fixed base to be processed, the outer peripheral surface portion around the positioning base is formed with the recess inward and forms avoidance area, the positioning base is located above avoidance area and is provided with a plurality of first installation hole passing through up and down, the positioning base is located below avoidance area and is provided with a plurality of second installation hole passing through up and down;Multiple first fastener;Multiple second fastener.The positioning tool has the advantages of simple structure, good positioning effect, etc., once clamping can simultaneously satisfy the processing demand of other arbitrary surface of fixed base except bottom surface, and the positioning tool appears the risk of clamping damage of fixed base, guarantee product surface quality.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a fixed base positioning fixture. Background Technology

[0002] A mounting base, also known as a chassis, pedestal, or mounting platform, is a non-standard component typically used to support the weight of all core components of an equipment, such as robot arms, gantry frames, linear modules, and servo motors. A robust base ensures that all components are securely supported in the correct position, preventing structural deformation due to gravity or load.

[0003] There is a kind of Figure 1 The fixed base shown requires holes on its side and back, including round holes and oblong holes. Before machining the fixed base on the machine tool, a vise clamps the base plate of the fixed base using a side clamping method. Since the vise inevitably obstructs part of the side when clamping, the obstructed area cannot be machined. Furthermore, because the vise can only position the fixed base on two opposite sides, and not the other two sides, the positional accuracy of the fixed base cannot be consistent each time it is clamped, affecting its machining accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a fixed base positioning fixture, which solves the problems of poor clamping effect and inconsistent position when using existing clamping methods for fixed bases.

[0005] The technical solution of this utility model to achieve the above objectives is a fixed base positioning fixture, comprising: The positioning base has a positioning plane formed on its top surface for supporting the fixed base to be processed. A clearance area is formed by recessing the outer peripheral surface of the positioning base. Multiple first mounting holes are provided above the clearance area on the positioning base, and multiple second mounting holes are provided below the clearance area on the positioning base. Multiple first fasteners correspond one-to-one with the first mounting holes, and the first fasteners can pass through the first mounting holes to fix the base to be processed on the positioning plane. Multiple second fasteners, each corresponding to a second mounting hole, can pass through the second mounting holes to fix the positioning base on the machine tool.

[0006] Preferably, the positioning base includes an upper positioning plate, a lower positioning plate, and a support column connecting the upper positioning plate and the lower positioning plate.

[0007] Preferably, the upper and lower ends of the support column are integrally connected to the middle area of ​​the upper positioning plate and the lower positioning plate, respectively, and the avoidance area is formed on the periphery of the support column between the upper positioning plate and the lower positioning plate.

[0008] Preferably, the upper and lower ends of the support column are detachably connected to the middle area of ​​the upper positioning plate and the lower positioning plate respectively by bolts, and the avoidance area is formed on the periphery of the support column between the upper positioning plate and the lower positioning plate.

[0009] Preferably, the first mounting hole and the second mounting hole are threaded holes or smooth holes.

[0010] Preferably, the first fastener is a cap bolt, which can pass through the first mounting hole from bottom to top and can be threadedly connected to the bolt hole corresponding to the bottom of the base to be processed.

[0011] Preferably, the first fastener is a screw, which can pass through the first mounting hole from bottom to top or from top to bottom, and both ends of the screw can be threadedly connected to the base to be processed and the nut, respectively.

[0012] Preferably, the upper or lower end face of the screw is provided with an internal hexagonal hole.

[0013] Preferably, the second fastener is a cap bolt.

[0014] Preferably, the area on the positioning plane corresponding to the circular hole at the bottom of the fixed base to be processed has an upward protrusion forming a positioning post.

[0015] Its advantages over existing technologies are: This positioning fixture has advantages such as simple structure and good positioning effect. The recessed area around the outer periphery of the positioning base facilitates the installation of the first and second fasteners. After the fixed base is placed on the positioning plane of the positioning base, the first fastener is passed through the first mounting hole from bottom to top and connected to the fixed base, thus fixing the fixed base to the positioning base. This does not obstruct the outer side or upper surface of the fixed base, facilitating processing of any surface of the fixed base except the lower surface, while ensuring uniform clamping position. The second fastener passes through the second mounting hole and connects to the platform plate on the machine tool, thereby fixing the positioning fixture onto the machine tool and ensuring that the position of the positioning fixture does not change.

[0016] A single clamping can simultaneously meet the processing requirements of any surface of the fixed base other than the bottom surface, and this positioning fixture eliminates the risk of damaging the fixed base, ensuring the surface quality of the product. Attached Figure Description

[0017] Figure 1This is a structural diagram of the fixed base; Figure 2 This is a schematic diagram showing the fixed base being fixed on the positioning fixture; Figure 3 yes Figure 2 A structural diagram from another perspective; Figure 4 yes Figure 2 Another structural diagram from a different perspective; Figure 5 This is a structural diagram of the positioning base in the positioning fixture.

[0018] In the figure, 1 is the positioning base; 11 is the upper positioning plate; 111 is the first mounting hole; 12 is the lower positioning plate; 121 is the second mounting hole; 13 is the support column; 101 is the positioning plane; 1011 is the positioning column; 2 is the first fastener; 3 is the second fastener; and 4 is the fixed base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] A preferred embodiment of this utility model provides a positioning fixture for a fixed base, which is connected to the bottom of the fixed base 4 so as to expose all sides of the fixed base 4, making it convenient to process the sides of the fixed base 4.

[0021] For details, see Figures 2-5 The positioning fixture mainly includes a positioning base 1, multiple first fasteners 2 and multiple second fasteners 3.

[0022] The positioning base 1 consists of an upper positioning plate 11, a support column 13, and a lower positioning plate 12.

[0023] The upper positioning plate 11 and the lower positioning plate 12 are parallel vertically. The support column 13 connects the upper positioning plate 11 and the lower positioning plate 12 and is perpendicular to the upper positioning plate 11 and the lower positioning plate 12 respectively. The upper surface of the upper positioning plate 11 contacts the bottom surface of the fixed base 4 and is used to position the fixed base 4.

[0024] In this embodiment, the positioning base 1 is integrally formed, so the upper and lower ends of the support column 13 are integrally connected to the central areas of the upper positioning plate 11 and the lower positioning plate 12 on opposite sides, respectively. The support column 13 is prismatic in shape, which can provide stable support for the upper positioning plate 11.

[0025] The cross-sectional dimensions of the support column 13 are smaller than those of the upper positioning plate 11 and the lower positioning plate 12, so that a clearance zone is formed between the upper positioning plate 11 and the lower positioning plate 12, located around the support column 13, to facilitate the installation and removal of the first fastener 2 and the second fastener 3.

[0026] In other embodiments, the positioning base 1 may not be integrally formed. The upper positioning plate 11, the support column 13, and the lower positioning plate 12 are separate components. The upper and lower ends of the support column 13 respectively contact the central areas of the opposite sides of the upper positioning plate 11 and the lower positioning plate 12, and then the upper positioning plate 11 and the lower positioning plate 12 are fixedly connected by bolts. It should be noted that countersunk holes need to be made on the upper surface of the upper positioning plate 11 and the lower surface of the lower positioning plate 12 to hide the bolt heads in the countersunk holes, so that the upper surface of the upper positioning plate 11 and the lower surface of the lower positioning plate 12 are flush.

[0027] In another embodiment, a groove can be formed in the center area of ​​the lower surface of the upper positioning plate 11 and the center area of ​​the upper surface of the lower positioning plate 12. The cross-sectional shape of the groove matches the cross-sectional shape of the support column 13. This allows the upper and lower ends of the support column 13 to be embedded into the corresponding grooves, and then the upper positioning plate 11 and the lower positioning plate 12 can be fixedly connected by bolts. The grooves and bolts work together to make the connection between the support column 13 and the upper and lower positioning plates 11 and 12 more tight.

[0028] The upper positioning plate 11, the support column 13, and the lower positioning plate 12 are designed as three separate components for easy processing.

[0029] like Figure 5 As shown, in this embodiment, a positioning post 1011 is formed by protruding upward on the positioning plane 101 (i.e., the upper surface) of the upper positioning plate 11. The bottom surface of the fixed base 4 has multiple circular holes, and the positioning post 1011 corresponds to the position of one of the circular holes that is not symmetrically distributed.

[0030] When the fixed base 4 is placed on the positioning base 1, the positioning pin 1011 will be inserted into the corresponding round hole. This serves two purposes: first, to pre-position the base, and second, to prevent incorrect placement of the fixed base 4.

[0031] See also Figure 5 Three through-holes 111 are provided on each side of the upper positioning plate 11 to accommodate fixing bases 4 with different numbers of bolt holes. Each of the first mounting holes 111 corresponds to a bolt hole on the fixing base 4. The first mounting holes 111 can be threaded holes or smooth holes.

[0032] In this embodiment, the first fastener 2 is a cap bolt, and there are four of them. The four cap bolts correspond to the first mounting holes 111 at the four corners of the upper positioning plate 11.

[0033] The cap bolt includes a head and a shank. The cap bolt passes through the first mounting hole 111 from the bottom to the top of the upper positioning plate 11 and is threaded into the bolt hole on the fixed base 4. The fixed base 4 is fixed to the positioning base 1 by tightening the cap bolt.

[0034] In other embodiments, the first fastener 2 may also be a screw with an internal hexagonal socket. This screw can pass sequentially from top to bottom through the bolt hole on the fixed base 4 and the first mounting hole 111 on the upper positioning plate 11, and then be threaded onto the nut. Alternatively, it can pass from bottom to top through the first mounting hole 111 and be threaded onto the fixed base 4, and then the nut is screwed onto the lower end of the screw.

[0035] By rotating the nut, the fixing base 4 is fixed on the positioning base 1. The screw is then turned by inserting an Allen wrench into the inner corner hole.

[0036] This method is suitable for situations where the height of the support column 13 is insufficient. If the height of the support column 13 is low, the use of cap bolts may cause interference with the bolts on the lower positioning plate 12.

[0037] like Figure 5 As shown, three through-holes 121 are also provided on both sides of the lower positioning plate 12. The second mounting holes 121 can be threaded holes or smooth holes.

[0038] In this embodiment, the second fastener 3 is a cap bolt, which has an internal hexagonal socket at its head. The cap bolt can be tightened by inserting a wrench into the internal hexagonal socket.

[0039] There are four head bolts, or six can be provided. Each head bolt corresponds one-to-one with the second mounting hole 121. The number of head bolts depends on the installation requirements.

[0040] The cap bolt passes through the second mounting hole 121 from top to bottom and is threaded into the bolt hole on the platform plate of the machine tool, thereby fixing the positioning base 1 onto the platform plate and ensuring that the position of the positioning fixture does not change.

[0041] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A fixing base positioning fixture, characterized in that, include: The positioning base (1) has a positioning plane (101) on its top surface for supporting the fixed base (4) to be processed. A clearance area is formed by recessing the outer peripheral surface of the positioning base (1). Multiple first mounting holes (111) are provided above the clearance area on the positioning base (1), and multiple second mounting holes (121) are provided below the clearance area on the positioning base (1). Multiple first fasteners (2) correspond one-to-one with the first mounting holes (111). The first fasteners (2) can pass through the first mounting holes (111) to fix the base (4) to be processed on the positioning plane (101). Multiple second fasteners (3) correspond one-to-one with the second mounting holes (121). The second fasteners (3) can pass through the second mounting holes (121) to fix the positioning base (1) on the machine tool.

2. The fixed base positioning fixture according to claim 1, characterized in that, The positioning base (1) includes an upper positioning plate (11), a lower positioning plate (12), and a support column (13) connecting the upper positioning plate (11) and the lower positioning plate (12).

3. The fixed base positioning fixture according to claim 2, characterized in that, The upper and lower ends of the support column (13) are integrally connected to the middle area of ​​the upper positioning plate (11) and the lower positioning plate (12), respectively, and the avoidance area is formed between the upper positioning plate (11) and the lower positioning plate (12) on the periphery of the support column (13).

4. The fixed base positioning fixture according to claim 2, characterized in that, The upper and lower ends of the support column (13) are detachably connected to the middle area of ​​the upper positioning plate (11) and the lower positioning plate (12) respectively by bolts, and the avoidance area is formed between the upper positioning plate (11) and the lower positioning plate (12) on the periphery of the support column (13).

5. The fixed base positioning fixture according to claim 1, characterized in that, The first mounting hole (111) and the second mounting hole (121) are threaded holes or smooth holes.

6. The fixed base positioning fixture according to claim 1, characterized in that, The first fastener (2) is a cap bolt, which can pass through the first mounting hole (111) from bottom to top and can be threaded to the bolt hole corresponding to the bottom of the fixed base (4) to be processed.

7. The fixed base positioning fixture according to claim 1, characterized in that, The first fastener (2) is a screw, which can pass through the first mounting hole (111) from bottom to top or from top to bottom, and the two ends of the screw can be threadedly connected to the fixed base (4) to be processed and the nut respectively.

8. The fixed base positioning fixture according to claim 7, characterized in that, The upper or lower end face of the screw is provided with an internal hexagonal hole.

9. The fixed base positioning fixture according to claim 1, characterized in that, The second fastener (3) is a cap bolt.

10. The fixed base positioning fixture according to claim 1, characterized in that, The positioning plane (101) has a positioning post (1011) that protrudes upward in the area corresponding to the round hole at the bottom of the fixed base (4) to be processed.

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