Honing head coarse oil stone seat expanding structure

Abstract

The utility model discloses a honing head coarse oil stone seat expanding structure which comprises a honing head, a connecting seat is installed on the honing head, an oil stone seat is installed on the honing head, an oil stone is assembled on the oil stone seat, the oil stone seat is movably connected with the honing head to conduct expanding operation, and an adjusting middle shaft capable of sliding up and down is installed in the honing head. A fine grinding push groove and a coarse grinding push groove are formed in the outer side of the adjusting middle shaft, and a fine grinding wedge-shaped body and a coarse grinding wedge-shaped body which extend into the fine grinding push groove and the coarse grinding push groove correspondingly are installed on the oilstone base. According to the expanding structure for the coarse grinding oilstone seat of the honing head, the middle shaft is adjusted to move downwards to push the fine grinding wedge-shaped body through the fine grinding push groove so that the corresponding oilstone seat can expand outwards, the middle shaft is adjusted to move upwards to push the coarse grinding wedge-shaped body through the coarse grinding push groove so that the corresponding oilstone seat can expand outwards, and compared with an oil cylinder driving mode, the expanding structure is more direct and simpler; and the oil leakage risk does not exist, maintenance and repair are very convenient, cost is low, and control is direct, simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of a honing head. Background Art

[0002] Honing, also known as boring, is a finishing process performed on the finished surface using an oilstone (also called a honing strip) embedded in a honing head. During honing, the workpiece is mounted on the honing machine table or in a fixture, and the honing head with several oilstone strips is inserted into the processed hole. The honing head is driven by the machine tool spindle to rotate and make axial reciprocating motion. The oilstone strip contacts the hole wall with a certain pressure, and a very thin layer of metal can be cut off. The honing head and the spindle are generally in a floating connection.

[0003] The honing head mainly expands the adjusting pin by moving the internal adjusting cone up and down. For coarse and fine honing technology, the coarse honing oilstone and the fine honing oilstone need to be installed on the honing head at the same time. Generally, two sets of drives are configured, and the two sets of drives drive the coarse honing oilstone to expand and the fine honing oilstone to expand respectively, and they cannot be carried out at the same time. This makes the supporting facilities complicated and costly, and increases the volume of the honing head. For large-scale equipment updates, the cost and labor are very high. For this reason, the honing head is technically improved to enable it to meet the time-sharing expansion requirements of the coarse honing oilstone and the fine honing oilstone without changing the honing processing equipment. Utility Model Content

[0004] The utility model aims to provide a honing head coarse and fine oil stone seat expansion structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A honing head coarse and fine oilstone seat expansion structure comprises a honing head, a connecting seat is installed on the honing head, an oilstone seat is installed on the honing head, an oilstone is mounted on the oilstone seat, the oilstone seat and the honing head are movably connected to perform an expansion operation, an adjusting middle shaft that can slide up and down is installed in the honing head, a fine grinding push groove and a coarse grinding push groove are arranged on the outer side of the adjusting middle shaft, a fine grinding wedge body and a coarse grinding wedge body that extend into the fine grinding push groove and the coarse grinding push groove respectively are installed on the oilstone seat, the adjusting middle shaft moves upward to push the coarse grinding wedge body through the coarse grinding push groove to make the corresponding oilstone seat expand outward, and the adjusting middle shaft moves downward to push the fine grinding wedge body through the fine grinding push groove to make the corresponding oilstone seat expand outward.

[0007] As a further solution of the utility model: the top and the bottom of the oilstone seat are respectively provided with spring member holders, and the spring ring passes through the spring member holders to tighten the oilstone seat inwardly.

[0008] As a further solution of the utility model: the oilstone includes a coarse honing oilstone and a fine honing oilstone, the coarse honing oilstone and the fine honing oilstone are installed on corresponding oilstone seats, the fine grinding wedge pushes the corresponding oilstone seat to push out the fine honing oilstone, and the coarse grinding wedge pushes the corresponding oilstone seat to push out the coarse honing oilstone.

[0009] As a further solution of the utility model: the top of the fine grinding push groove is a beveled surface, the beveled surface of the fine grinding wedge body contacts the beveled surface of the fine grinding push groove, the height of the fine grinding push groove is the stroke length of pushing out the rough honing oilstone when the middle axis is adjusted upward, the bottom of the rough grinding push groove is a beveled surface, the beveled surface of the rough grinding wedge body contacts the beveled surface of the rough grinding push groove, and the height of the rough grinding push groove is the stroke length of pushing out the fine honing oilstone when the middle axis is adjusted downward.

[0010] As a further solution of the utility model: a limit groove is opened on the side wall of the honing head, and the fine grinding wedge and the rough grinding wedge slide in the limit groove to perform an expansion operation. The wall thickness of the honing head is greater than the outward expansion stroke of the oilstone seat, and the inclined surface is always located in the limit groove when the fine grinding wedge and the rough grinding wedge expand and move outward.

[0011] As a further solution of the utility model: the top of the connecting seat is threadedly connected with an adjusting screw, the adjusting screw and the connecting seat are rotatably connected, and a connecting clamp is installed on the top of the adjusting screw.

[0012] As a further solution of the utility model: a connection socket is arranged at the top of the connection socket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The expansion structure of the coarse and fine oilstone seats of the honing head can expand and open the corresponding oilstone seats outward by adjusting the central axis to move downward and push the fine grinding wedge-shaped body through the fine grinding push groove, and can expand and open the corresponding oilstone seats outward by adjusting the central axis to move upward and push the coarse grinding wedge-shaped body through the coarse grinding push groove. Compared with the driving method of the oil cylinder, the expansion structure is more direct and simple, has no risk of oil leakage, is very convenient to maintain and repair, has low cost, and is directly and easily controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an expansion structure of a coarse and fine oil stone seat of a honing head;

[0016] Figure 2 It is a structural schematic diagram of an adjustment center axis in an expansion structure of a coarse and fine oil stone seat of a honing head;

[0017] Figure 3 It is a structural cross-sectional view of an adjusting center axis in an expansion structure of a coarse and fine oil stone seat of a honing head;

[0018] Figure 4The present invention is a structural cross-sectional view of an adjusting central axis in an expansion structure of a coarse and fine oil stone seat of a honing head.

[0019] In the figure: 1. honing head; 2. connecting seat; 3. connecting seat; 4. oilstone seat; 5. spring member seat; 6. oilstone; 7. spring ring; 8. connecting member; 9. adjusting screw; 10. adjusting center axis; 11. fine grinding push groove; 12. fine grinding wedge; 13. coarse grinding push groove; 14. coarse grinding wedge. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 In the embodiment of the utility model, a honing head coarse and fine oilstone seat expansion structure includes a honing head 1, a connecting seat 2 is installed on the honing head 1, an oilstone seat 4 is installed on the honing head 1, an oilstone 6 is installed on the oilstone seat 4, the oilstone seat 4 and the honing head 1 are movably connected to perform an expansion operation, an adjustment center shaft 10 that can slide up and down is installed in the honing head 1, and a fine grinding push groove 11 and a coarse grinding push groove 13 are provided on the outer side of the adjustment center shaft 10, and a fine grinding wedge 12 and a coarse grinding wedge 12 that extend into the fine grinding push groove 11 and the coarse grinding push groove 13 are installed on the oilstone seat 4. 4, the adjusting center axis 10 moves upward through the rough grinding push groove 13 to push the rough grinding wedge 14 to make the corresponding oil stone seat 4 expand outward, and the adjusting center axis 10 moves downward through the fine grinding push groove 11 to push the fine grinding wedge 12 to make the corresponding oil stone seat 4 expand outward, and the top of the connecting seat 2 is provided with a connecting seat 3, and the top of the connecting seat 2 is threadedly connected with an adjusting screw 9, and the adjusting screw 9 is rotatably connected to the connecting seat 2. The top of the adjusting screw 9 is installed with a connecting card 8, and the connecting seat 3 is installed and fixed with the main shaft of the honing machine, and the connecting seat 3 is connected with the expansion inside the main shaft. The adjusting shaft is installed. The main shaft and the expansion adjusting shaft of the honing machine are double-feed rotary sealed main shafts, which are prior art and will not be described in detail here. The main shaft drives the honing head 1 to rotate and hone through the connecting seat 2. The expansion adjusting shaft drives the adjusting screw 9 to rotate so that the adjusting middle shaft 10 moves up and down in the connecting seat 2 and the honing head 1. The adjusting middle shaft 10 and the connecting seat 2 and the honing head 1 cannot rotate. When the adjusting middle shaft 10 is driven to the middle position, the coarse honing oilstone and the fine honing oilstone are in a contracted state, and the adjusting middle shaft 10 moves downward through the fine grinding push groove 1. 1 pushes the fine grinding wedge 12 to make the corresponding oilstone seat 4 expand outward, and at the same time the coarse grinding wedge 14 slides in the coarse grinding push groove 13, but the coarse grinding wedge 14 does not move, and the adjustment center shaft 10 moves upward through the coarse grinding push groove 13 to push the coarse grinding wedge 14 to make the corresponding oilstone seat 4 expand outward, and at the same time the fine grinding wedge 12 slides in the fine grinding push groove 11, but the fine grinding wedge 12 does not move. Compared with the driving method of the oil cylinder, it is more direct and simple, there is no risk of oil leakage, maintenance and repair are very convenient, the cost is low, and the control is also direct and simple.

[0021] In a preferred embodiment, spring member holders 5 are respectively provided at the top and bottom of the oilstone seat 4. The spring ring 7 passes through the spring member holders 5 to tighten the oilstone seat 4 inwardly. The spring member holders 5 are used to fix the spring ring 7. The spring ring 7 contracts inwardly. When the oilstone seat 4 is not affected by the expansion, it is in an inwardly contracted state, does not contact the workpiece, and can resist centrifugal force.

[0022] In a preferred embodiment, the oilstone 6 includes a coarse honing oilstone and a fine honing oilstone, which are installed on corresponding oilstone seats 4, and the fine grinding wedge 12 pushes the corresponding oilstone seat 4 to push out the fine honing oilstone, and the coarse grinding wedge 14 pushes the corresponding oilstone seat 4 to push out the coarse honing oilstone. The driving mode drives the adjusting center shaft 10 downward to push out the fine honing oilstone, and drives the adjusting center shaft 10 upward to push out the coarse honing oilstone. A fine honing oilstone is arranged between two adjacent coarse honing oilstones, so as to realize the cross layout and symmetrical distribution of the coarse honing oilstone and the fine honing oilstone.

[0023] In a preferred embodiment, the top of the fine grinding push groove 11 is a beveled surface, the beveled surface of the fine grinding wedge 12 contacts the beveled surface of the fine grinding push groove 11, and the height of the fine grinding push groove 11 is the stroke length for adjusting the middle axis 10 to move upward to push out the rough honing oilstone, the bottom of the rough grinding push groove 13 is a beveled surface, the beveled surface of the rough grinding wedge 14 contacts the beveled surface of the rough grinding push groove 13, and the height of the rough grinding push groove 13 is the stroke length for adjusting the middle axis 10 to move downward to push out the fine honing oilstone, and the height of the rough grinding push groove 13 has the function of limiting the moving stroke of the wedge body, leaving sufficient activity space and sliding stroke for the wedge body.

[0024] In a preferred embodiment, a limit groove is opened on the side wall of the honing head 1, and the fine grinding wedge 12 and the rough grinding wedge 14 slide in the limit groove to perform an expansion operation. The wall thickness of the honing head 1 is greater than the outward expansion stroke of the oilstone seat 4. When the fine grinding wedge 12 and the rough grinding wedge 14 expand and move outward, the inclined surface is always located in the limit groove. Since one side of the wedge is an inclined surface, when the inclined surface slides out of the honing head 1, the height of the wedge is shortened, causing the oilstone 6 to shake up and down, so it is necessary to limit the expansion distance of the oilstone 6. The limitation can be the height limit of the rough grinding push groove 13 or the fine grinding push groove 11, or it can be limited by adjusting the stroke of the central axis 10.

[0025] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference can be made to the description in other embodiments.

[0026] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A honing head coarse and fine oilstone seat expansion structure, comprising a honing head (1), a connecting seat (2) mounted on the honing head (1), an oilstone seat (4) mounted on the honing head (1), an oilstone (6) mounted on the oilstone seat (4), the oilstone seat (4) and the honing head (1) being movably connected to perform an expansion operation, characterized in that: The honing head (1) is provided with an adjusting middle shaft (10) which can slide up and down. A fine grinding push groove (11) and a rough grinding push groove (13) are provided on the outer side of the adjusting middle shaft (10). A fine grinding wedge (12) and a rough grinding wedge (14) which extend into the fine grinding push groove (11) and the rough grinding push groove (13) are provided on the oilstone seat (4). When the adjusting middle shaft (10) moves upward, it pushes the rough grinding wedge (14) through the rough grinding push groove (13) so that the corresponding oilstone seat (4) expands outward. When the adjusting middle shaft (10) moves downward, it pushes the fine grinding wedge (12) through the fine grinding push groove (11) so that the corresponding oilstone seat (4) expands outward.

2. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 1 is characterized in that: The top and bottom of the oilstone seat (4) are respectively provided with spring member holders (5), and a spring ring (7) passes through the spring member holders (5) to tighten the oilstone seat (4) inwardly.

3. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 1, characterized in that: The oilstone (6) comprises a coarse honing oilstone and a fine honing oilstone, the coarse honing oilstone and the fine honing oilstone are mounted on corresponding oilstone seats (4), the fine honing wedge (12) pushes the corresponding oilstone seat (4) to push out the fine honing oilstone, and the coarse honing wedge (14) pushes the corresponding oilstone seat (4) to push out the coarse honing oilstone.

4. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 3 is characterized in that: The top of the fine grinding push groove (11) is a beveled surface, the beveled surface of the fine grinding wedge (12) contacts the beveled surface of the fine grinding push groove (11), the height of the fine grinding push groove (11) is the stroke length of the rough honing oil stone pushed out when the central axis (10) moves upward, the bottom of the rough grinding push groove (13) is a beveled surface, the beveled surface of the rough grinding wedge (14) contacts the beveled surface of the rough grinding push groove (13), and the height of the rough grinding push groove (13) is the stroke length of the fine honing oil stone pushed out when the central axis (10) moves downward.

5. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 4, characterized in that: A limiting groove is provided on the side wall of the honing head (1), and the fine grinding wedge (12) and the rough grinding wedge (14) slide in the limiting groove to perform an expansion operation. The wall thickness of the honing head (1) is greater than the outward expansion stroke of the oilstone seat (4), and the inclined surface of the fine grinding wedge (12) and the rough grinding wedge (14) is always located in the limiting groove when the fine grinding wedge (12) and the rough grinding wedge (14) expand and move outward.

6. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 1, characterized in that: The top of the connecting seat (2) is threadedly connected with an adjusting screw (9), the adjusting screw (9) and the connecting seat (2) are rotatably connected, and a connecting clamp (8) is installed at the top of the adjusting screw (9).

7. The expansion structure of the coarse and fine oil stone seat of the honing head according to claim 1, characterized in that: A connection socket (3) is provided at the top end of the connection socket (2).

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