Aligning tool and aligning method for universal drilling and milling equipment

Abstract

The invention relates to the technical field of machining, in particular to an aligning tool of universal drilling and milling equipment. The device comprises an outer circle supporting ring, an inner circle supporting ring and an adjusting ring. The outer circle supporting ring is used for installing and fixing the whole tool and machine table equipment, and meanwhile the inner circle supporting ring and the adjusting ring are installed in a limiting mode. The inner circle supporting ring is installed and fixed along the inner ring of the outer circle supporting ring. The inner circle supporting ring forms a supporting structure for the adjusting ring; the adjusting ring is installed on the outer circle supporting ring and fixed, and an adjusting assembly is arranged on the adjusting ring and used for adjusting the position of a positioning tool installed on the inner side of the adjusting ring. When the center is adjusted, operation is convenient, and maintenance and center adjustment of the whole equipment are not needed; by using the tool, not only can the operation quantity of personnel be reduced, but also the safety of the personnel is ensured, most time is saved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a centering tool for general drilling and milling equipment. Background Art

[0002] With the influence of social environment progress, vigorously promoting new energy related products and technologies, improving the company's production efficiency, it is also a little difficult for the foundry industry products, and there are some bottlenecks:

[0003] In the automotive industry, during the production of parts, with the development of technology, quality requirements are getting higher and higher. A part often has many tolerances, surface roughness, shape and position tolerance constraints, so as to maximize the performance of the product. However, in the process of becoming a qualified part, it often needs to go through many processes: material preparation-casting-rough machining-finishing and other complex processes.

[0004] For example:( Figure 1 ) shows the rough casting produced. In the rough machining process, we need to process the bottom of the shell for rough machining, and often there will be a machining allowance of about 2mm for the subsequent fine machining. (As shown in Figure 2 ). In this process: a series of problems will arise, among which the most prominent is that during the milling or drilling of the product, as the equipment ages and wears, the center of the equipment may be slightly eccentric, so that the local reserved processing allowance is too much, or the processing allowance on one side is small. In severe cases, the drilling or milling will be off-center to the casting body, causing scrap and irreversible losses. The center hole position of the spindle and the support plate needs to be adjusted. Calibration requires the disassembly of the spindle motor, which is time-consuming and labor-intensive. Often in this case, the scrap rate can reach 100%,

[0005] Therefore, how to design a convenient self-aligning tool becomes a technical problem that needs to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the background technology and to provide a centering tool for universal drilling and milling equipment.

[0007] The technical solution of the present invention is a centering tool for universal drilling and milling equipment, comprising an outer circle support ring, an inner circle support ring and an adjustment ring;

[0008] The outer circle support ring is used to install and fix the entire tooling and machine equipment, and at the same time limit the installation of the inner circle support ring and the adjustment ring;

[0009] The inner circle support ring is installed and fixed along the inner ring of the outer circle support ring; the inner circle support ring forms a support structure for the adjustment ring;

[0010] The adjusting ring is installed on the outer cylindrical supporting ring and fixed, and an adjusting component is arranged on the adjusting ring for adjusting the position of the positioning tooling installed on the inner side of the adjusting ring.

[0011] Preferably, a plurality of mounting grooves are arranged in a circular array along the inner side wall of the outer cylindrical support ring for mounting in cooperation with the pressing block and the positioning key.

[0012] Preferably, a plurality of positioning grooves are provided on the inner circle support ring for installation with the pressing block;

[0013] The positioning key is assembled on the inner circle support ring through the positioning bolt, so that the positioning key and the inner circle support ring are assembled together to form component A; component A is assembled on the outer circle support ring, in which the positioning key is stuck in the installation groove, and the inner circle support ring is limitedly installed using a pressure block and positioning bolts.

[0014] Preferably, the adjustment ring is provided with a plurality of adjustment components distributed in a circular array;

[0015] The adjustment assembly includes an adjustment block, an adjustment pressure plate and an adjustment screw;

[0016] Among them, the adjustment block is installed in the groove of the adjustment ring, and the adjustment pressure plate is used to limit the adjustment block in the groove; the bottom of the adjustment block extends from under the adjustment pressure plate to form a measuring section; an adjustment screw is set on the adjustment block, and turning the adjustment screw will correspondingly adjust the length of the measuring section extending from under the adjustment pressure plate.

[0017] Preferably, a penetrating arc groove is provided on the adjustment ring; the fixing bolt of the adjustment ring passes through the arc groove and is locked in cooperation with the outer cylindrical support ring.

[0018] Preferably, the positioning fixture is assembled in the inner ring of the adjustment ring and abuts against the measuring section extending from the adjustment block.

[0019] Preferably, the positioning tool is a gauge block with an integer diameter of 190 mm.

[0020] Preferably, a gap of 1-2 mm is maintained around the pressing block.

[0021] A method for assembling a centering tool for a universal drilling and milling device, which is used to assemble the centering tool, comprises the following specific steps:

[0022] S1. Fix the outer cylindrical support ring on the machine equipment with bolts;

[0023] S2. Fit the inner circle support ring with the positioning key and fasten them with positioning bolts to form component A;

[0024] S3. Place component A on the outer cylindrical support ring and pre-tighten it using a pressing block. Do not lock it.

[0025] S4. Place the adjustment ring on the outer support ring and lock it with the adjustment ring fixing bolts to prevent it from loosening;

[0026] S5. Place the adjustment block in the groove corresponding to the adjustment ring, and perform preliminary pre-tightening by adjusting the pressure plate. Do not lock it.

[0027] S6. Complete the assembly of the centering tooling.

[0028] A centering method for a centering tool of a universal drilling and milling equipment, using the centering tool to perform centering, includes the following specific steps:

[0029] S1. When installing the tooling on the equipment, select a φ190 integer gauge block and place it on the tooling to measure the distance between one end of the two adjustment blocks;

[0030] S2. Adjust the adjusting screw to ensure that the measuring section at one end of the adjusting block contacts the outer surface of the gauge block at the integer position of φ190. Adjust the adjusting block step by step to ensure that the integer values ​​of the distances between the two pairs of ends are the same.

[0031] S3. When ensuring that all the adjustment blocks are in contact with the integral gauge block of φ190, measure the distance from one end of the adjustment block to the other end to ensure that the extended lengths of the four adjustment blocks are consistent;

[0032] S4. After the adjustment is completed, the inner circle support ring is locked by tightening the bolts on the pressure block; the preliminary alignment step is completed;

[0033] S5. After the preliminary centering, perform precise centering, use a dial indicator with a magnetic chuck to attach it to the spindle, and manually rotate the spindle;

[0034] S6. Observe the eccentricity direction of the dial indicator. The self-aligning tool only loosens the corresponding adjustment plate (9) according to the eccentricity direction, and the other two sides are in a preliminary pre-tightening state;

[0035] S7, by adjusting the adjusting screw (10) on the corresponding eccentric side, reduce or increase the extended length of the measuring section (81) at one end of the adjusting block (8), and then re-lock each fastener;

[0036] S8. And so on, until it reaches the center.

[0037] Compared with the prior art, the present invention has the following beneficial technical effects:

[0038] 1. The present invention processes two arc grooves on both sides of the adjustment ring, so that the adjustment ring can slide within a certain range, and at the same time, the weight of the entire tooling can be reduced;

[0039] 2. The present invention maintains a 2mm gap around the pressing block, and the outer circle support ring and the inner circle support ring also maintain a certain gap, which can mainly ensure the movement of the inner circle support ring in various degrees of freedom;

[0040] 3. The tooling in the present invention adopts the four-point positioning principle. Through the adjustment block, the extension length of the adjustment block can be calculated by using a specific M5 bolt, so that the alignment is more accurate;

[0041] 4. In the present invention, when adjusting the center, the operation is convenient. It is no longer the same as before. The whole equipment needs to be repaired and adjusted, which leads to excessive costs and possible personal injury at any time. The use of such tooling can not only reduce the number of personnel operations, but also ensure the safety of employees, save most of the time, and reduce maintenance costs. The tooling is detachable and easy to maintain, and can be used for different types of existing equipment.

[0042] 5. The present invention uses a centering tooling device to improve the manual calibration of drilling and milling machines from several days to 1 or 2 hours, thereby improving work efficiency, extending the service life of the equipment and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of a blank casting in the prior art;

[0044] Figure 2 It is a schematic diagram of rough machining of castings in the prior art;

[0045] Figure 3 It is a structural schematic diagram of the centering tool in an embodiment of the present invention;

[0046] Figure 4 It is a schematic diagram of the unfolded structure of the centering tool in the embodiment of the present invention;

[0047] Figure 5 It is a structural schematic diagram of an adjustment ring in an embodiment of the present invention;

[0048] Figure 6 It is a schematic diagram of the structure of the positioning tool and the inner circle support ring in an embodiment of the present invention;

[0049] Figure 7 It is a schematic diagram of the installation structure of the outer circle support ring and the inner circle support ring in the embodiment of the present invention;

[0050] Figure 8 It is a schematic diagram of the structure of the outer cylindrical support ring in an embodiment of the present invention;

[0051] Fig. 9 It is a schematic diagram of the installation structure of the centering tool and the back milling machine in an embodiment of the present invention;

[0052] Fig.10A schematic diagram of the installation process of the centering tool and the back milling machine in an embodiment of the present invention;

[0053] Fig.11 This is a physical picture of the centering tool in the embodiment of the present invention.

[0054] Figure numerals: 1. outer cylindrical support ring; 101. mounting groove; 2. inner cylindrical support ring; 201. positioning groove; 3. pressure block; 4. positioning key; 5. positioning bolt; 6. adjustment ring; 61. arc groove; 7. adjustment ring fixing bolt; 8. adjustment block; 81. measuring section; 9. adjustment pressure plate; 10. adjustment screw; 11. positioning tool; 100. centering tool; 200. back milling machine. DETAILED DESCRIPTION

[0055] Example 1

[0056] like Figure 3 As shown, the present invention proposes a centering tool for universal drilling and milling equipment, comprising an outer cylindrical support ring 1, an inner cylindrical support ring 2 and an adjustment ring 6; the outer cylindrical support ring 1 is used to install and fix the entire tool and the machine equipment (back milling machine 200), and at the same time limit the installation of the inner cylindrical support ring 2 and the adjustment ring 6; the inner cylindrical support ring 2 is installed and fixed along the inner ring of the outer cylindrical support ring 1; the inner cylindrical support ring 2 forms a supporting structure for the adjustment ring 6; the adjustment ring 6 is installed on the outer cylindrical support ring 1 and fixed, and an adjustment component is arranged on the adjustment ring 6 for adjusting the position of the positioning tool 11 installed on the inner side of the adjustment ring 6.

[0057] In this embodiment, if Figure 7 As shown, a plurality of positioning holes are arranged in a circular array on the outer cylindrical support ring 1 for locking with the adjusting ring fixing bolts 7 on the adjusting ring 6; a plurality of mounting grooves 101 are arranged in a circular array along the inner side wall of the outer cylindrical support ring 1 for mounting with the pressing block 3 and the positioning key 4. Figure 6 As shown, a plurality of positioning grooves 201 are provided on the inner circular support ring 2 for installation with the pressing block 3; the positioning key 4 is assembled on the inner circular support ring 2 by the positioning bolt 5, so that the positioning key 4 and the inner circular support ring 2 are assembled together to form a component A; the component A is assembled on the outer circular support ring 1, wherein the positioning key 4 is stuck in the installation groove 101, and the pressing block 3 and the positioning bolt 5 are used to limit the installation of the inner circular support ring 2.

[0058] like Figure 5As shown, the adjustment ring 6 is provided with a plurality of adjustment components distributed in a circular array; the adjustment components include an adjustment block 8, an adjustment pressure plate 9 and an adjustment screw 10; wherein, the adjustment block 8 is installed in the groove of the adjustment ring 6, and the adjustment pressure plate 9 is used to limit the adjustment block 8 in the groove; the bottom of the adjustment block 8 extends from below the adjustment pressure plate 9 to form a measuring section 81; an adjustment screw 10 is provided on the adjustment block 8, and the length of the measuring section 81 extending from below the adjustment pressure plate 9 is adjusted accordingly by turning the adjustment screw 10, and a through arc groove 61 is provided on the adjustment ring 6; the adjustment ring fixing bolt 7 passes through the arc groove 61 and is locked with the outer circle support ring 1. In this embodiment, two arc grooves 61 are machined on both sides of the adjustment ring 6, which can reduce the weight of the entire tooling; at this time, the adjustment ring 6 can be slid within a certain range, and the moving direction of the inner circle support ring 2 can be changed by adjusting the direction of the adjustment ring 6, so as to facilitate centering.

[0059] like Figure 6 As shown, the positioning fixture 11 is assembled in the inner ring of the adjustment ring 6 and abuts against the measuring section 81 extending from the adjustment block 8. The positioning fixture 11 is a gauge block with an integer diameter of 190mm. A gap of 1-2mm is maintained around the pressing block 3. A gap of 2mm is maintained around the pressing block 3, and a certain gap is also maintained between the outer circle support ring 1 and the inner circle support ring 2. Since the positioning fixture 11 is located in the inner hole of the inner circle support ring 2; the adjustment ring 6 can be roughly centered to limit the moving direction of the inner circle support ring 2, and it is only allowed to move in the direction of the offset; mainly, it can ensure the movement of the inner circle support ring 2 in various degrees of freedom.

[0060] In this embodiment, the adjusting screw 10 is an M5 bolt. This tool adopts a four-point positioning principle. By using a specific M5 bolt on the adjusting block 8, the extension length of the adjusting block 8 can be calculated, thereby making the centering more accurate.

[0061] Example 2

[0062] A method for assembling a centering tool for universal drilling and milling equipment, which is used to assemble the centering tool in Example 1, comprises the following specific steps:

[0063] S1. Fix the outer cylindrical support ring 1 on the machine equipment by bolts;

[0064] S2, match the inner circle support ring 2 with the positioning key 4, and fasten them together through the positioning bolts 5 to form an assembly A;

[0065] S3, place component A on the outer cylindrical support ring 1, and pre-tighten it with the pressing block 3, but do not lock it;

[0066] S4. Place the adjustment ring 6 on the outer cylindrical support ring 1 and lock the installation with the adjustment ring fixing bolt 7 to prevent loosening;

[0067] S5. Place the adjusting block 8 in the groove corresponding to the adjusting ring 6, and perform preliminary pre-tightening by adjusting the pressing plate 9, and do not lock it;

[0068] S6. Complete the assembly of the centering fixture 100.

[0069] In this embodiment, the outer support ring 1 is first fixed, and then the inner fixing ring 2 is assembled in sequence and finally the adjustment ring 6 is installed; the entire centering tool 100 can be conveniently installed on the back milling machine 200, which is convenient for alignment. Figure 1 The workpiece shown is processed.

[0070] Example 3

[0071] A centering method for a centering tool of a universal drilling and milling equipment, using the centering tool to perform centering, includes the following specific steps:

[0072] S1. When installing the tooling on the equipment, select a φ190 integer block and place it on the tooling (or use an inside micrometer (vernier caliper)) to measure the distance between the two ends of the adjustment blocks 8;

[0073] S2. Adjust the adjusting screw 10 to ensure that one end of the measuring section 81 of the adjusting block 8 contacts the outer surface of the gauge block at the integer position of φ190 (or use an inside micrometer (vernier caliper)). Adjust the adjusting block 8 step by step to ensure that the integer values ​​of the distances between the two pairs of ends are the same.

[0074] S3. When ensuring that the adjustment blocks 8 are all in contact with the integral gauge block of φ190, measure the distance from one end of the adjustment block 8 to the other end to ensure that the extended lengths of the four adjustment blocks 8 are consistent;

[0075] S4. After the adjustment is completed, the inner circle support ring 2 is locked by tightening the bolts on the pressing block 4; the preliminary alignment step is completed;

[0076] S5. After the preliminary centering, perform precise centering, use a dial indicator with a magnetic chuck to attach it to the spindle, and manually rotate the spindle;

[0077] S6. Observe the eccentricity direction of the dial indicator. The self-aligning tool only loosens the corresponding adjustment plate 9 according to the eccentricity direction, and the other two sides are in a preliminary pre-tightening state;

[0078] S7, by adjusting the adjusting screw 10 on the corresponding eccentric side, reduce or increase the extended length of the measuring section 81 at one end of the adjusting block 8, and then re-lock each fastener;

[0079] S8. And so on, until it reaches the center.

[0080] In this embodiment, when adjusting the center, the operation is convenient. It is no longer necessary to repair and align the entire device as in the past, which is too costly and may cause personal injury at any time. The use of such tooling can not only reduce the number of operations by personnel, but also ensure the safety of employees, save most of the time, and reduce maintenance costs. The tooling is detachable and easy to maintain, and can be used for different types of existing equipment. The present invention uses a centering tooling device to improve the original manual calibration of drilling and milling machines from several days to 1 or 2 hours, which speeds up work efficiency, extends the service life of the equipment, and reduces costs.

[0081] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A centering tool for general drilling and milling equipment, characterized in that: It comprises an outer circular support ring (1), an inner circular support ring (2) and an adjustment ring (6); The outer circular support ring (1) is used to install and fix the entire tooling and the machine equipment, and at the same time to limit the installation of the inner circular support ring (2) and the adjustment ring (6); The inner circle support ring (2) is installed and fixed along the inner ring of the outer circle support ring (1); the inner circle support ring (2) forms a support structure for the adjustment ring (6); The adjustment ring (6) is mounted on the outer cylindrical support ring (1) and fixed, and an adjustment component is arranged on the adjustment ring (6) for adjusting the position of a positioning tool (11) mounted on the inner side of the adjustment ring (6).

2. The centering tool for universal drilling and milling equipment according to claim 1, characterized in that: A plurality of mounting grooves (101) are arranged in a circular array along the inner side wall of the outer cylindrical support ring (1) for mounting in cooperation with the pressing block (3) and the positioning key (4).

3. The centering tool for universal drilling and milling equipment according to claim 1 is characterized in that: A plurality of positioning grooves (201) are provided on the inner circular support ring (2) for installation with the pressing block (3); The positioning key (4) is assembled on the inner circle support ring (2) by means of the positioning bolt (5), so that the positioning key (4) and the inner circle support ring (2) are assembled together to form a component A; the component A is assembled on the outer circle support ring (1), wherein the positioning key (4) is stuck in the installation groove (101), and the inner circle support ring (2) is limitedly installed using the pressure block (3) and the positioning bolt (5).

4. The centering tool for universal drilling and milling equipment according to claim 1, characterized in that: The adjustment ring (6) is provided with a plurality of adjustment components distributed in a ring array; The adjustment assembly comprises an adjustment block (8), an adjustment pressure plate (9) and an adjustment screw (10); The adjusting block (8) is installed in the groove of the adjusting ring (6), and the adjusting pressure plate (9) is used to limit the adjusting block (8) in the groove; the bottom of the adjusting block (8) extends from below the adjusting pressure plate (9) to form a measuring section (81); an adjusting screw (10) is provided on the adjusting block (8), and the adjusting screw (10) is rotated to adjust the length of the measuring section (81) extending from below the adjusting pressure plate (9) accordingly.

5. The centering tool for universal drilling and milling equipment according to claim 4, characterized in that: The adjusting ring (6) is provided with a penetrating arc groove (61); the adjusting ring fixing bolt (7) passes through the arc groove (61) and is locked in cooperation with the outer cylindrical supporting ring (1).

6. The centering tool for universal drilling and milling equipment according to claim 4, characterized in that: The positioning tool (11) is assembled in the inner ring of the adjustment ring (6) and abuts against the measuring section (81) extending from the adjustment block (8).

7. The centering tool for universal drilling and milling equipment according to claim 1, characterized in that: The positioning tool (11) is a gauge block with an integer position of 190 mm in diameter.

8. The centering tool for universal drilling and milling equipment according to claim 1, characterized in that: A gap of 1-2 mm is maintained around the pressing block (3).

9. An assembly method of a centering tool for general drilling and milling equipment, used for assembling the centering tool according to any one of claims 1 to 8, characterized in that: The specific steps include: S1. Fix the outer cylindrical support ring (1) on the machine equipment by bolts; S2. Fit the inner circle support ring (2) with the positioning key (4) and fasten them together with the positioning bolt (5) to form assembly A; S3, placing component A on the outer cylindrical support ring (1), and pre-tightening it with the pressing block (3), but not locking it; S4. Place the adjustment ring (6) on the outer cylindrical support ring (1) and lock the adjustment ring with the fixing bolts (7) to prevent loosening. S5. Place the adjustment block (8) in the groove corresponding to the adjustment ring (6), and perform preliminary pre-tightening by adjusting the pressure plate (9), and do not lock it; S6. Complete the assembly of the centering tooling.

10. A method for aligning a centering tool of a universal drilling and milling equipment, using the centering tool according to any one of claims 1 to 8 for centering, characterized in that: The specific steps include: S1. When the tooling is installed on the equipment, a φ190 integer gauge block is selected and placed on the tooling to measure the distance between one end of the two adjustment blocks (8); S2. Adjust the adjusting screw (10) to ensure that one end of the measuring section of the adjusting block (8) contacts the outer surface of the gauge block at the integer position of φ190, and adjust the adjusting block (8) step by step to ensure that the integer values ​​of the distances between the two pairs of ends are the same; S3. When ensuring that the adjustment blocks (8) are all in contact with the integral gauge block of φ190, measure the distance from one end to the other end of the adjustment blocks (8) to ensure that the extended lengths of the four adjustment blocks (8) are consistent; S4. After the adjustment is completed, the inner circle support ring (2) is locked by tightening the bolts on the pressure block (4); the preliminary alignment step is completed; S5. After the preliminary centering, perform precise centering, use a dial indicator with a magnetic chuck to attach it to the spindle, and manually rotate the spindle; S6. Observe the eccentricity direction of the dial indicator. The self-aligning tool only loosens the corresponding adjustment plate (9) according to the eccentricity direction, and the other two sides are in a preliminary pre-tightening state; S7, by adjusting the adjusting screw (10) on the corresponding eccentric side, reduce or increase the extended length of the measuring section (81) at one end of the adjusting block (8), and then re-lock each fastener; S8. And so on, until it reaches the center.

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