Pitch-adjustable reaming and honing mechanism

Abstract

The reaming and honing mechanism comprises a stand column, and a motor, a fixed shaft gear box and a positioning plate are sequentially installed on the front side of the stand column from top to bottom. And the output end of the motor is in transmission connection with the fixed shaft gear box through a coupling. According to the reaming and honing mechanism with the adjustable hole distance, by rotating a distance shifting gear and meshing the distance shifting gear with a positioning rack, the distance shifting gear can drive a transmission rod in a bearing seat to move in the extending direction of the positioning rack when rotating, so that the distance between every two adjacent reaming and honing cutters is adjusted, and in addition, the distance between every two adjacent reaming and honing cutters is adjusted by screwing a fastening screw; the front end of the set screw is tightly attached to the front side of the shifting gear, so that the shifting gear is fixed, meanwhile, the distance between every two adjacent reaming and honing cutters is fixed, and the problems that the adjusting range of the hole distance can be limited by fixing the distance between the reaming and honing cutters, the hole distance cannot be flexibly adjusted when workpieces of different sizes or shapes are machined, and machining precision is poor are effectively solved. And the processing is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of reaming and honing, in particular to a reaming and honing mechanism with adjustable hole spacing. Background Art

[0002] The reaming and honing machine is a kind of internal hole finishing equipment, which is widely used in the case of high hole processing accuracy. It has the characteristics of reaming and honing, and gradually removes the internal hole allowance to achieve the final accuracy.

[0003] Currently, when a workpiece is subjected to reaming and honing, the distance between two adjacent reaming and honing tools is fixed, and the fixed reaming and honing tool distance limits the adjustment range of the hole distance, making it impossible to flexibly adjust the hole distance when processing workpieces of different sizes or shapes, resulting in processing restrictions. Since the shape and size of the workpiece may require different hole distances to meet the design requirements, the fixed reaming and honing tool distance will cause the hole distance to be unable to adapt to different processing requirements, affecting the flexibility and adaptability of the processing. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reaming and honing mechanism with adjustable hole spacing, which solves the problem that fixed reaming and honing tool spacing limits the adjustment range of the hole spacing, making it impossible to flexibly adjust the hole spacing when processing workpieces of different sizes or shapes, resulting in restricted processing.

[0005] To achieve the above object, the utility model provides the following technical solution: a reaming mechanism with adjustable hole spacing, comprising a column, on the front side of which a motor, a fixed axis gear box and a positioning plate are sequentially installed from top to bottom;

[0006] The output end of the motor is connected to the fixed-axis gearbox through a coupling, and a plurality of transmission universal joints are connected to the fixed-axis gearbox internally, and the transmission universal joints are rotatably connected to the inside of the positioning plate through bearings;

[0007] The end of the transmission universal joint away from the fixed axis gear box is equipped with a transmission rod, the end of the transmission rod away from the transmission universal joint is equipped with a connecting universal joint, and the bottom end of the connecting universal joint is provided with a reamer honing tool;

[0008] At least two slide grooves are provided inside the positioning plate, at least two bearing seats are slidably connected inside the at least two slide grooves, and the transmission rods on the left and right sides are rotatably connected to the inside of the bearing seats on the left and right sides respectively through bearings;

[0009] At least two positioning racks are installed on the front side of the positioning plate, and the front sides of the left and right bearing seats are rotatably connected with shift gears, and the shift gears on the left and right sides are respectively engaged with the two positioning racks, so that when the shift gear rotates, the transmission rod inside the bearing seat can be driven to move along the direction in which the positioning racks extend, thereby adjusting the distance between two adjacent reamer honing tools.

[0010] Furthermore, a certain distance is reserved between the positioning plate and the column to allow the transmission universal joint to move and rotate.

[0011] Furthermore, the plurality of transmission rods are distributed in parallel.

[0012] Furthermore, a set screw is threadedly connected to the inner part of the bearing seat.

[0013] Furthermore, the set screw is attached to the front side of the pitch gear.

[0014] Further, the transmission universal joint comprises an upper rod and a sleeve rod;

[0015] The bottom end of the upper rod is inserted into the inside of the sleeve rod, and the bottom end of the upper rod can move up and down inside the sleeve rod.

[0016] Furthermore, a limit pin is arranged on the outer side of the upper rod, and corresponding to the limit pin, a movable groove for the limit pin to slide up and down is opened on the inner peripheral wall of the sleeve rod.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] The hole-pitch adjustable reaming and honing mechanism, by rotating the shift gear and meshing the shift gear with the positioning rack, enables the shift gear to drive the transmission rod inside the bearing seat to move along the extending direction of the positioning rack when rotating, so as to adjust the spacing between two adjacent reaming and honing tools. In addition, by tightening the set screw, the front end of the set screw is tightly fitted with the front side of the shift gear, so that the shift gear is fixed and the spacing between two adjacent reaming and honing tools is fixed at the same time, which effectively solves the problem that the fixed reaming and honing tool spacing will limit the adjustment range of the hole spacing, making it impossible to flexibly adjust the hole spacing when processing workpieces of different sizes or shapes, resulting in limited processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a side view of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the gear wrench of the utility model.

[0022] In the figure: 1. column; 2. motor; 3. fixed axis gear box; 4. positioning plate; 401. slide groove; 402. bearing seat; 403. positioning rack; 404. shifting gear; 405. set screw; 5. transmission universal joint; 501. upper rod; 502. sleeve rod; 503. limit pin; 6. connecting universal joint; 7. reamer honing tool; 8. transmission rod; 9. coupling. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-2 In this embodiment, a reaming and honing mechanism with adjustable hole spacing is used to adjust the spacing between two adjacent reaming and honing tools 7, thereby adjusting the hole spacing on the workpiece;

[0025] Specifically, in order to facilitate the simultaneous driving of multiple reaming honing tools 7 to rotate and perform reaming and honing processing on the workpiece, the reaming and honing mechanism in this embodiment includes a column 1, and a motor 2, a fixed-axis gear box 3 and a positioning plate 4 are installed in sequence from top to bottom on the front side of the column 1; the output end of the motor 2 is transmission-connected to the fixed-axis gear box 3 through a coupling 9, and a plurality of transmission universal joints 5 are transmission-connected inside the fixed-axis gear box 3, and the intermediate transmission universal joint 5 is rotatably connected to the inside of the positioning plate 4 through a bearing, and a transmission rod 8 is installed at one end of the transmission universal joint 5 away from the fixed-axis gear box 3, and a connecting universal joint 6 is installed at the end of the transmission rod 8 away from the transmission universal joint 5, and a reaming honing tool 7 is provided at the bottom end of the connecting universal joint 6.

[0026] In actual use, the output end of the motor 2 rotates to drive the fixed-axis gearbox 3 to rotate, and the rotation of the fixed-axis gearbox 3 drives a plurality of transmission universal joints 5 and a plurality of transmission rods 8 as well as a plurality of connecting universal joints 6 and reaming and honing tools 7 connected thereto to rotate, thereby performing reaming and honing processing on the workpiece.

[0027] Furthermore, in order to adjust the spacing between two adjacent reamer honing tools 7, at least two slide grooves 401 are opened inside the positioning plate 4 in this embodiment, and at least two bearing seats 402 are slidably connected inside the at least two slide grooves 401, and the left and right transmission rods 8 are rotatably connected to the inside of the left and right bearing seats 402 through bearings respectively; at least two positioning racks 403 are assembled on the front side of the positioning plate 4, and the front sides of the left and right bearing seats 402 are rotatably connected with shifting gears 404, and the left and right shifting gears 404 are respectively meshed with the two positioning racks 403.

[0028] In actual use, by rotating the shift gear 404 and meshing with the positioning rack 403, the shift gear 404 can drive the transmission rod 8 inside the bearing seat 402 to move along the extending direction of the positioning rack 403 when rotating, so as to adjust the distance between two adjacent reamer honing tools 7.

[0029] Furthermore, in order to facilitate the rotation and swing of the transmission universal joint 5, in this embodiment: a certain distance is reserved between the positioning plate 4 and the column 1 to allow the transmission universal joint 5 to move and rotate, and the transmission universal joint 5 is located between the positioning plate 4 and the column 1.

[0030] Furthermore, in order to ensure that the plurality of reamer-honing tools 7 are all facing perpendicularly to the direction of the workpiece, the plurality of transmission rods 8 in this embodiment are all distributed in parallel.

[0031] In addition, the set screw 405 is fitted to the front side of the shift gear 404. In actual use, by tightening the set screw 405, the front end of the set screw 405 is tightly fitted to the front side of the shift gear 404, thereby fixing the shift gear 404 and fixing the distance between two adjacent reamer honing tools 7.

[0032] Please note that Figure 3 In order to facilitate the rotation of the shifting gear 404, the shifting gear 404 in this embodiment can be used but is not limited to Figure 3 The gear wrench is driven, and one side of the gear wrench is open, and the gear wrench is sleeved on the outer side of the shift gear 404 in a semicircular shape, which is convenient for the meshing of the shift gear 404 and the gear wrench.

[0033] In detail, in order to ensure that the length of the transmission universal joint 5 can change when the reamer honing tool 7 moves, so as to adapt to the change in the spacing between the bearing seat 402 and the fixed-axis gear box 3, the transmission universal joint 5 in this embodiment includes an upper rod 501 and a sleeve rod 502; the bottom end of the upper rod 501 is inserted into the inside of the sleeve rod 502, and the bottom end of the upper rod 501 can move up and down inside the sleeve rod 502.

[0034] In actual use, when the bearing seat 402 moves, it can drive the transmission rod 8 inside it to move along the extension direction of the positioning rack 403, and at the same time pull the sleeve rod 502 to move. At this time, the distance between the top of the upper rod 501 and the end of the sleeve rod 502 is extended accordingly, otherwise it will move in the direction of the upper rod 501.

[0035] It should be noted that the longest moving distance of the sleeve rod 502 will not be separated from the upper rod 501.

[0036] In addition, in order to ensure that the upper rod 501 can effectively drive the sleeve rod 502 to rotate when rotating, a limit pin 503 is set on the outer side of the upper rod 501, and corresponding to the limit pin 503, a movable groove for the limit pin 503 to slide up and down is opened on the inner wall of the sleeve rod 502, and the upper end of the movable groove is open.

[0037] In actual setting, through the cooperation between the limit pin 503 and the movable groove, the upper rod 501 can effectively drive the sleeve rod 502 to rotate when rotating, so that the transmission rod 8 and the reamer 7 connected thereto are in a rotating state.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reaming mechanism with adjustable hole spacing, characterized in that: It comprises a column (1), on the front side of which a motor (2), a fixed-axis gear box (3) and a positioning plate (4) are installed in sequence from top to bottom; The output end of the motor (2) is transmission-connected to the fixed-axis gearbox (3) via a coupling (9); a plurality of transmission universal joints (5) are transmission-connected inside the fixed-axis gearbox (3); the transmission universal joints (5) are rotationally connected to the inside of the positioning plate (4) via bearings; The end of the transmission universal joint (5) away from the fixed axis gear box (3) is equipped with a transmission rod (8), the end of the transmission rod (8) away from the transmission universal joint (5) is equipped with a connecting universal joint (6), and the bottom end of the connecting universal joint (6) is provided with a reamer (7); At least two slide grooves (401) are provided inside the positioning plate (4), at least two bearing seats (402) are slidably connected inside the at least two slide grooves (401), and the transmission rods (8) on the left and right sides are rotatably connected to the inside of the bearing seats (402) on the left and right sides respectively through bearings; At least two positioning racks (403) are mounted on the front side of the positioning plate (4), and the front sides of the left and right bearing seats (402) are both rotatably connected with shifting gears (404), and the shifting gears (404) on the left and right sides are respectively meshed with the two positioning racks (403), so that when the shifting gears (404) rotate, the transmission rod (8) inside the bearing seat (402) can be driven to move along the extending direction of the positioning racks (403), thereby adjusting the distance between two adjacent reamer honing tools (7).

2. The reaming mechanism with adjustable hole spacing according to claim 1, characterized in that: A certain distance is reserved between the positioning plate (4) and the column (1) to allow the transmission universal joint (5) to move and rotate.

3. The reaming mechanism with adjustable hole spacing according to claim 1, characterized in that: The plurality of transmission rods (8) are distributed in parallel.

4. The reaming mechanism with adjustable hole spacing according to claim 1, characterized in that: A set screw (405) is threadedly connected to the interior of the bearing seat (402).

5. The reaming mechanism with adjustable hole spacing according to claim 4, characterized in that: The set screw (405) is attached to the front side of the distance shifting gear (404).

6. The reaming and honing mechanism with adjustable hole spacing according to claim 1, characterized in that: The transmission universal joint (5) comprises an upper rod (501) and a sleeve rod (502); The bottom end of the upper rod (501) is inserted into the interior of the sleeve rod (502), and the bottom end of the upper rod (501) can move up and down inside the sleeve rod (502).

7. The reaming mechanism with adjustable hole spacing according to claim 6, characterized in that: A limit pin (503) is arranged on the outer side of the upper rod (501), and corresponding to the limit pin (503), a movable groove for the limit pin (503) to slide up and down is opened on the inner peripheral wall of the sleeve rod (502).

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