A casing processing positioning tool and positioning method

Abstract

The invention discloses a casing machining positioning tool and a positioning method, comprising a base, an inner ring positioning circular block fixedly installed in the middle of the base, the upper end face of the inner ring positioning circular block fixedly connected to the end face positioning blocks distributed in a ring array, the upper end face of the base located on the outer side of the inner ring positioning circular block, respectively provided with an upper pressure plate assembly, a lower pressure plate assembly and an outer ring positioning assembly distributed in a ring array, and an angular positioning assembly installed on the upper end face of the base; the invention adopts plane three-point precise positioning, circumferential and angular coarse positioning, cooperates with needle gauges and feeler gauges for manual adjustment, confirms mutual clearance, and realizes circumferential and angular precise positioning; adopts multi-point staggered positioning, which can effectively avoid mutual interference, and the clamping force is manually controlled, which is convenient for controlling the clamping force, can effectively avoid deformation of casing castings during clamping, has high casing positioning accuracy, and is convenient for casing machining.

Description

Technical Field

[0001] The invention relates to the technical field of casing positioning, and in particular to a casing processing positioning tool and a positioning method. Background Art

[0002] After casting, the casing needs to be post-processed. When processing the casing, it needs to be fixed with a fixed tool. The clamping force of the existing casing fixing tool is difficult to control, and there are many clamping positions, which are easy to cause mutual interference. The casing is prone to deformation during the pressure process, and it is difficult to process qualified products. In addition, the casing blades have thin walls and complex structures, which are prone to deformation during the clamping process. The existing casing fixing tooling mostly adopts a direct positioning method, and the casing itself will have different degrees of deformation after production is completed, which leads to inaccurate positioning of the casing and affects the casing processing. Summary of the invention

[0003] The main purpose of the present invention is to provide a casing processing positioning tool and positioning method, which adopts three-point precise positioning in the plane, rough positioning in the circumferential direction and the angular direction, and manual adjustment with a needle gauge and a feeler gauge to confirm the mutual clearance, so as to achieve precise circumferential and angular positioning; multi-point staggered positioning is adopted to effectively avoid mutual interference, and the clamping force is manually controlled, which is convenient for controlling the clamping force, and can effectively avoid deformation of the casing casting during the clamping process. The casing positioning accuracy is high, and the casing processing is convenient, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a casing processing and positioning tool, including a base, an inner ring positioning round block is fixedly installed in the middle of the base, the upper end face of the inner ring positioning round block is fixedly connected to the end face positioning blocks distributed in a ring array, the upper end face of the base is located on the outer side of the inner ring positioning round block and is respectively provided with an upper pressure plate assembly, a lower pressure plate assembly and an outer ring positioning assembly distributed in a ring array, and the upper end face of the base is installed with an angular positioning assembly.

[0005] The inner ring positioning block is composed of an upper block and a lower block, the outer side wall of the upper block is fitted with the lower inner wall of the casing, and the end face positioning block is fixed on the upper end face of the lower block located outside the upper block.

[0006] The upper pressure plate assembly comprises a bottom support column, an upper pressure rod and a column. The upper pressure rod is an L-shaped structure and is threadedly connected to the column through an upper adjusting screw, and the column is fixedly connected to the base.

[0007] The lower pressing plate assembly comprises an L-shaped lower pressing rod, which is threadedly connected to the base through a lower adjusting screw.

[0008] The outer ring positioning assembly comprises a vertical block, on which a jacking bolt is threadedly connected, and one end of the jacking bolt close to the inner ring positioning circular block is fixedly connected to the jacking block, and the jacking block is a spherical structure.

[0009] The angular positioning assembly includes symmetrically arranged positioning blocks and symmetrically arranged corner blocks. A positioning groove for placing the casing blades is formed between the two positioning blocks. The two corner blocks are respectively threaded with symmetrically arranged locking bolts. The ends of the locking bolts close to the inner side are fixedly connected to the clamping blocks. The clamping blocks are spherical structures and are made of soft materials.

[0010] The present invention also provides a casing machining and positioning method based on a casing machining and positioning tool, comprising the following steps:

[0011] Inspect the inner ring hole of the receiver, confirm the deformation of the inner ring hole of the receiver, confirm and record the data to be compensated of the theoretical center according to the inner ring positioning block, end face positioning block and angular positioning assembly on the positioning tool, place the reference surface of the receiver flat on the end face positioning block, select a needle gauge of corresponding size to adjust the gap according to the data to be compensated, determine the theoretical center of the receiver, use a plug gauge of the same size to confirm and adjust the gap size, determine the angular center, and then lock and fix the receiver in the circumferential and vertical directions through the upper pressure plate assembly, lower pressure plate assembly and outer ring positioning assembly.

[0012] Compared with the traditional technology, the beneficial effects of the present invention are:

[0013] The present invention adopts three-point precise positioning on the plane, rough positioning in the circumferential and angular directions, and manual adjustment with a needle gauge and a feeler gauge to confirm the mutual clearance, thereby achieving precise positioning in the circumferential and angular directions;

[0014] The positioning tooling of the present invention adopts multi-point staggered positioning, which can effectively avoid mutual interference, and the clamping force is manually controlled, which is convenient for controlling the clamping force and can effectively avoid deformation of the casing casting during the clamping process. The casing positioning accuracy is high and the casing processing is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a three-dimensional schematic diagram of the angular positioning assembly of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the tooling positioning casing of the present invention.

[0018] In the figure: 1. base; 2. inner ring positioning circular block; 21. upper circular block; 22. lower circular block; 3. end face positioning block; 4. upper pressure plate assembly; 41. bottom support column; 42. upper pressure rod; 43. column; 44. upper adjusting screw; 5. lower pressure plate assembly; 51. lower pressure rod; 52. lower adjusting screw; 6. outer ring positioning assembly; 61. vertical block; 62. jacking bolt; 63. jacking block; 7. angular positioning assembly; 71. positioning block; 72. corner block; 73. locking bolt; 74. clamping block; 75. positioning groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Example 1

[0021] like Figure 1-3 As shown, a casing processing and positioning tool comprises a base 1, an inner ring positioning block 2 is fixedly installed in the middle of the base 1, the inner ring positioning block 2 is composed of an upper block 21 and a lower block 22, when the casing is positioned and installed, the outer wall of the upper block 21 fits with the inner wall of the lower end of the casing, the upper end face of the inner ring positioning block 2 is fixedly connected to the end face positioning block 3 distributed in a ring array, the end face positioning block 3 is fixed to the upper end face of the lower block 22 located on the outer side of the upper block 21, the upper end face of the base 1 is located on the outer side of the inner ring positioning block 2, and an upper pressure plate assembly 4, a lower pressure plate assembly 5 and an outer ring positioning assembly 6 distributed in a ring array are respectively provided, and an angular positioning assembly 7 is installed on the upper end face of the base 1.

[0022] Among them, the upper pressure plate assembly 4 includes a bottom support column 41, an upper pressure rod 42 and a column 43. The upper pressure rod 42 is an L-shaped structure and is threadedly connected to the column 43 through an upper adjusting screw 44. The column 43 is fixedly connected to the base 1. The lower end face of the upper end of the upper pressure rod 42 is pressed against the upper ring end face of the receiver under the action of the upper adjusting screw 44 to position and compact the upper part of the receiver. The upper end of the bottom support column 41 supports the lower end face of the upper ring of the receiver. In order to adapt to receivers of different heights, the bottom support column 41 adopts a liftable and adjustable structure, and the L-shaped upper pressure rod 42 is slidably connected to the column 43.

[0023] The lower pressure plate assembly 5 includes an L-shaped lower pressure rod 51, which is threadedly connected to the base 1 through a lower adjusting screw 52. The lower end of the lower pressure rod 51 is pressed against the lower ring end surface of the casing under the action of the lower adjusting screw 52. At the same time, in order to use a casing of a certain size and thickness, the L-shaped lower pressure rod 51 and the base 1 can be connected by a sliding connection.

[0024] The outer ring positioning assembly 6 includes a vertical block 61, on which a jacking bolt 62 is threadedly connected. One end of the jacking bolt 62 close to the inner ring positioning round block 2 is fixedly connected to a jacking block 63. The jacking block 63 is a spherical structure. The jacking bolt 62 is rotated so that the jacking block 63 at the end of the jacking bolt 62 fits the outer side surface of the lower ring of the casing, and cooperates with the inner ring positioning round block 2 to realize the circumferential positioning of the annular structure of the casing.

[0025] The angular positioning assembly 7 includes symmetrically arranged positioning blocks 71 and symmetrically arranged corner blocks 72. A positioning groove 75 for placing the casing blades is formed between the two positioning blocks 71. The two corner blocks 72 are respectively threaded with symmetrically arranged locking bolts 73. The ends of the locking bolts 73 close to the inner side are fixedly connected to the clamping blocks 74. The clamping blocks 74 are spherical structures and are made of soft materials. The positioning is achieved in two aspects. The positioning grooves 75 formed by the symmetrically arranged positioning blocks 71 cooperate with the blades of the corresponding casing to position the casing blades, thereby realizing the angular positioning of the casing. At the same time, the locking bolts 73 on the corner blocks 72 are tightened to achieve locking positioning of the blades.

[0026] Example 2

[0027] A method for processing and positioning a casing comprises the following steps: detecting an inner ring hole of the casing, confirming deformation of the inner ring hole of the casing, and calculating the inner ring deformation value; confirming the theoretical center according to the inner ring positioning circular block, end face positioning block and angular positioning assembly on the positioning tooling, and comparing with the inner ring deformation value of the casing to obtain and record the data to be compensated; placing the reference surface of the casing flat on the end face positioning block, selecting a needle gauge of corresponding size to adjust the gap according to the data to be compensated, determining the theoretical center of the casing, using a plug gauge of the same size to confirm and adjust the gap size, determining the angular center, and then locking and fixing the casing in the circumferential direction and the up-and-down direction by an upper pressure plate assembly, a lower pressure plate assembly and an outer ring positioning assembly; making corresponding adjustments to the casing center according to the measured theoretical center data to be compensated, and manually adjusting to achieve accurate positioning of the casing.

[0028] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning method for a casing processing positioning tool, characterized in that: The casing processing and positioning tooling comprises a base, an inner ring positioning circular block is fixedly installed in the middle of the base, the upper end face of the inner ring positioning circular block is fixedly connected to the end face positioning blocks distributed in a ring array, the upper end face of the base is located on the outer side of the inner ring positioning circular block, and an upper pressure plate assembly, a lower pressure plate assembly and an outer ring positioning assembly distributed in a ring array are respectively provided, the upper end face of the base is installed with an angular positioning assembly, the inner ring positioning circular block is composed of an upper circular block and a lower circular block, the outer side wall of the upper circular block is in contact with the lower inner wall of the casing, and the end face positioning block is fixed to the upper end face of the lower circular block located on the outer side of the upper circular block; The positioning method comprises the following steps: detecting the inner ring hole of the casing, confirming the deformation of the inner ring hole of the casing, confirming and recording the data to be compensated of the theoretical center according to the inner ring positioning block, the end face positioning block and the angular positioning assembly on the positioning tooling, placing the reference surface of the casing flat on the end face positioning block, selecting a needle gauge of corresponding size to adjust the gap according to the data to be compensated, determining the theoretical center of the casing, using a plug gauge of the same size to confirm and adjust the gap size, determining the angular center, and then locking and fixing the casing in the circumferential and vertical directions by the upper pressure plate assembly, the lower pressure plate assembly and the outer ring positioning assembly.

2. The method for positioning a casing processing positioning tool according to claim 1, characterized in that: The upper pressure plate assembly comprises a bottom support column, an upper pressure rod and a column. The upper pressure rod is an L-shaped structure and is threadedly connected to the column through an upper adjusting screw, and the column is fixedly connected to the base.

3. The method for positioning a casing processing positioning tool according to claim 1, characterized in that: The lower pressing plate assembly comprises an L-shaped lower pressing rod, which is threadedly connected to the base through a lower adjusting screw.

4. The positioning method of a casing processing positioning tool according to claim 1, characterized in that: The outer ring positioning assembly comprises a vertical block, on which a jacking bolt is threadedly connected, and one end of the jacking bolt close to the inner ring positioning circular block is fixedly connected to the jacking block, and the jacking block is a spherical structure.

5. The method for positioning a casing processing positioning tool according to claim 1, characterized in that: The angular positioning assembly includes symmetrically arranged positioning blocks and symmetrically arranged corner blocks. A positioning groove for placing the casing blades is formed between the two positioning blocks. The two corner blocks are respectively threaded with symmetrically arranged locking bolts. The ends of the locking bolts close to the inner side are fixedly connected to the clamping blocks. The clamping blocks are spherical structures and are made of soft materials.

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