Horizontal honing machine

Abstract

The utility model provides a horizontal honing machine relates to honing machine technical field, and the support connecting mechanism includes main shaft connecting piece subassembly and main part subassembly, and the main part subassembly includes support rod connecting piece and work piece positioning spare, and the main shaft connecting piece subassembly installs in the main shaft circumference side, and the support rod connecting piece transverse sliding connection main shaft connecting piece subassembly, and work piece positioning spare fixed connection in the circumference side of the work piece to be processed, the utility model discloses the setting of support rod connecting piece and work piece positioning spare, and the limiting effect of support rod connecting piece, the position of main shaft end position is limited up and down left and right, keeps the axle of main shaft always with the axle of the work piece to be processed polishing inner hole in the same straight line, improves honing caliber's accurate degree, and support rod connecting piece and work piece positioning spare are all fixed on same base, and the main shaft is connected with the work piece to be processed through the support connecting mechanism and forms a whole structure, makes the operation of honing head relative to the work piece to be processed more stable, makes honing precision higher.

Description

Technical Field

[0001] This utility model relates to the field of honing machine technology, specifically a horizontal honing machine. Background Technology

[0002] A horizontal honing machine is a type of machine tool used for precision internal hole machining. Its core feature is that the honing head is driven by a horizontally arranged spindle to perform a combined rotary and reciprocating motion on the workpiece, forming a cross-hatched structure. The typical machining hole diameter range is Φ20-1000mm, and the hole depth can reach 10 meters. It can achieve a roundness of ≤0.005mm and a surface roughness of Ra0.1-0.4μm. It is particularly good at machining deep holes with an aspect ratio >5, such as engine blocks and hydraulic cylinders, and is suitable for high-precision manufacturing fields such as automobiles and aerospace.

[0003] The existing utility model patent with application number CN202422084149.4 discloses a honing machine, including a frame, on which slide rails, guide brackets and adjusting brackets are connected in sequence. It includes a traveling trolley and a rotary motor and a telescopic cylinder connected to it. The rotary motor is connected to a rotating shaft through a reduction gearbox. The rotating shaft is connected to a honing head through a connector and drives the honing head to rotate. A guide rod is slidably connected inside the rotating shaft. The guide rod extends out of the rotating shaft and connects to the telescopic cylinder and the inside of the honing head. It reciprocates with the telescopic cylinder to control the honing head to expand and contract. The honing head includes a honing body. An adjusting cavity is provided at the center of the honing body. A movable shaft is provided in the adjusting cavity. A conical adjusting component is provided on the movable shaft. A pin hole is opened outward on the honing body corresponding to the conical adjusting component. An adjusting pin is provided in the pin hole. One end of the adjusting pin abuts against the conical adjusting component, and the other end is located on the outside of the honing body and connected to an oilstone. This invention is easy to use and operate, and allows for flexible control of the honing head's expansion and contraction.

[0004] In the honing machine mentioned above, the guide bracket serves as a support component below the main shaft near the honing head. However, the main shaft of the horizontal honing machine is relatively long, and its end position is prone to offset in directions other than downward during the driving process. This offset will affect the honing accuracy of the workpiece hole. Utility Model Content

[0005] The purpose of this utility model is to provide a horizontal honing machine to solve the problem mentioned in the background art that in the existing honing machines, the guide bracket serves as a support component below the main shaft near the honing head. However, the main shaft of the horizontal honing machine is relatively long, and its end position is prone to offset in directions other than downward during the driving process. This offset will affect the honing accuracy of the workpiece hole.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a horizontal honing machine, comprising a worktable, a honing assembly, and a workpiece fixture. The honing assembly and the workpiece fixture are slidably connected on the worktable. The honing assembly includes a spindle box, a spindle, and a honing head. The workpiece fixture is fixedly connected to the workpiece to be processed. The spindle box drives the honing head to polish the workpiece. The machine also includes a support connection mechanism, comprising a spindle connector assembly and a main body assembly. The main body assembly includes a support rod connector and a workpiece positioning component. The spindle connector assembly is installed on the periphery of the spindle. The support rod connector is laterally slidably connected to the spindle connector assembly. The workpiece positioning component is fixedly connected to the periphery of the workpiece to be processed.

[0007] Preferably, the main component further includes a base and a bracket. The base is slidably connected to the worktable, and two sets of brackets are symmetrically installed above the base. Two sets of support rod connectors and workpiece positioning components are also provided and are respectively installed on the brackets.

[0008] Preferably, the support rod connector is installed on the side of the bracket near the main shaft. The main shaft connector assembly includes a kit and a support rod. Two sets of kits are provided, which are sleeved on the periphery of the main shaft. The two sets of kits are fixedly connected by the support rod. Two sets of support rods are symmetrically arranged on the left and right sides. The support rod connector is laterally slidably connected to the support rod.

[0009] Preferably, the kit includes an inner ring, a bearing, and an outer ring. The inner ring is sleeved and fixedly connected to the circumference of the spindle, and the outer ring is sleeved and mounted on the circumference of the inner ring via the bearing.

[0010] Preferably, the upper and lower surfaces of the support rod are provided with sliding grooves, and the support rod connector has a notch on one side connected to the support rod. Pulleys are installed above and below the notch, and the pulleys are connected to the sliding grooves accordingly.

[0011] Preferably, the workpiece positioning component is installed on the side of the bracket close to the workpiece to be processed. The workpiece positioning component includes a pull member, a movable rod, a spring, and a limiting block. The movable rod passes through the slot of the bracket. The end of the movable rod near the two sets of brackets is connected to the limiting block. A spring is sleeved around the movable rod between the limiting block and the bracket. The end of the movable rod away from the two sets of brackets is connected to the pull member.

[0012] Preferably, a flexible material gasket is installed on the surface of the limiting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the design of the support rod connector and the workpiece positioning component, the support rod connector limits the position of the spindle end in all directions, reducing errors caused by gravity and preventing the spindle from shifting upwards or to the left or right under external forces. This ensures that the spindle's axis is always aligned with the axis of the inner hole being ground on the workpiece, improving the accuracy of the honing diameter. Furthermore, since both the support rod connector and the workpiece positioning component are fixed to the same base, the spindle and workpiece are connected as a single unit during honing, compared to a separate and fixed spindle and workpiece. This makes the honing head's operation relative to the workpiece more stable, resulting in higher honing precision. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the horizontal honing machine of this utility model.

[0015] Figure 2 This is a schematic diagram of the honing assembly structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the main component structure of this utility model.

[0017] Figure 4 This is a schematic diagram showing the positional relationship between the support and connection mechanism of this utility model, the workpiece to be processed, and the spindle.

[0018] Figure 5 This is a cross-sectional view of the connection between the support rod connector and the kit of this utility model.

[0019] Figure 6 This is a cross-sectional schematic diagram of the workpiece positioning component of this utility model.

[0020] In the diagram: 1. Worktable; 11. Slide rail; 2. Honing assembly; 21. Spindle box; 22. Spindle; 23. Honing head; 31. Workpiece fixture; 32. Workpiece to be processed; 4. Support connection mechanism; 41. Spindle connector assembly; 411. Kit; 4111. Inner ring; 4112. Bearing; 4113. Outer ring; 412. Support rod; 4121. Slide groove; 42. Main assembly; 421. Base; 422. Bracket; 423. Support rod connector; 4231. Pulley; 424. Workpiece positioning component; 4241. Pulling component; 4242. Movable rod; 4243. Spring; 4244. Limiting block; 42441. Shim. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] One embodiment of this utility model is a horizontal honing machine, such as... Figure 1 As shown, it includes a worktable 1, a honing assembly 2, a workpiece fixture 31, and a support and connection mechanism 4.

[0023] like Figure 1 and Figure 2 As shown, the honing assembly 2 is slidably connected to the workpiece fixture 31 on the slide rail 11 of the worktable 1. The honing assembly 2 includes a spindle box 21, a spindle 22 and a honing head 23. The spindle box 21 drives the spindle 22 to rotate. The honing head 23 is installed at the end of the spindle 22. The workpiece fixture 31 is fixedly connected to the workpiece 32 to be processed. When the spindle box 21 is driven, the honing head 23 polishes the workpiece 32 to be processed.

[0024] The main shaft 22 of the horizontal honing machine is relatively long. A support connection mechanism 4 is set at one end of the main shaft 22 near the honing head 23. This can keep the main shaft 22 horizontal and prevent the honing angle from deviating due to gravity at the end of the main shaft 22.

[0025] like Figure 1 and Figure 3 As shown, the support connection mechanism 4 includes a spindle connector assembly 41 and a main body assembly 42. The main body assembly 42 includes a base 421, a bracket 422, a support rod connector 423, and a workpiece positioning component 424.

[0026] The base 421 is slidably connected to the slide rail 11 of the worktable 1. Two sets of brackets 422 are symmetrically installed above the base 421. Two sets of support rod connectors 423 and workpiece positioning components 424 are also provided, respectively installed on the brackets 422. The support connection mechanism 4 is connected to the slide rail 11 through the base 421. To match the positions of the spindle box 21 and the workpiece fixture 31, the position of the support connection mechanism 4 can be adjusted before honing. After the position is determined, it is fixed relative to the slide rail 11. The support connection mechanism 4 serves as a component connecting the honing assembly 2 and the workpiece 32 to be processed. The support rod connector 423 is used to limit the movement trajectory of the spindle 22, and the workpiece positioning component 424 is used to restrict the end of the workpiece 32 to be processed. On the one hand, the limiting function of the support rod connector 423 limits the position of the end of the spindle 22 in the up, down, left, and right directions. This not only reduces the error caused by gravity, but also prevents the spindle 22 from shifting upwards or left and right due to external forces. This keeps the axis of the spindle 22 always on the same straight line as the axis of the inner hole of the workpiece 32 being ground, improving the accuracy of the honing diameter. On the other hand, the support rod connector 423 and the workpiece positioning component 424 are both fixed on the same base 421. This allows the spindle 22 and the workpiece 32 to be connected into an integral structure through the support connection mechanism 4 when the honing head 23 is grinding. Compared with the separate fixing of the spindle 22 and the workpiece 32, this makes the operation of the honing head 23 relative to the workpiece 32 more stable, resulting in higher honing accuracy.

[0027] like Figure 4 and Figure 5 As shown, the spindle connector assembly 41 is installed around the spindle 22, and the support rod connector 423 is laterally slidably connected to the spindle connector assembly 41. The support rod connector 423 is installed on the side of the bracket 422 near the spindle 22. The spindle connector assembly 41 includes a kit 411 and a support rod 412. Two sets of kits 411 are provided around the spindle 22. Each kit 411 includes an inner ring 4111, a bearing 4112, and an outer ring 4113. The inner ring 4111 is fitted and fixedly connected to the circumference of the spindle 22, and the outer diameter of the spindle 22 matches the inner diameter of the inner ring 4111. The outer ring 4113 is fitted and installed around the inner ring 4111 via the bearing 4112, and the outer diameter of the outer ring 4113 is smaller than the inner diameter of the workpiece 32 to be processed. The outer rings 4113 of the two sets of kits 411 are fixedly connected by the support rod 412. Two sets of support rods 412 are symmetrically arranged about the outer ring 4113. The support rod connector 423 is laterally slidably connected to the support rods 412. The upper and lower surfaces of the support rods 412 are provided with grooves 4121. The support rod connector 423 has a notch on one side connected to the support rods 412. Pulleys 4231 are installed above and below the notch, and the pulleys 4231 are connected to the grooves 4121 respectively.

[0028] During honing, the spindle box 21 drives the spindle 22 to slide back and forth relative to the slide rail 11 to hone the workpiece 32. The spindle connecting component 41 serves as a component connecting the end of the spindle 22 to the support rod connecting component 423. The inner ring 4111 of the component 411 rotates due to the rotation of the spindle 22, while the outer ring 4113 remains stationary. When the spindle 22 slides back and forth, the support rod 412 between the outer rings 4113 of the two components 411 slides simultaneously relative to the support rod connecting component 423. The pulley 4231 of the support rod connecting component 423 slides in the groove 4121 of the support rod 412. The distance between the pulley 4231 of the support rod connecting component 423 restricts the support rod 412 to always remain at the same height, thereby ensuring that the position of the end part of the spindle 22 is still restricted in the up, down, left, and right directions even when the spindle 22 is sliding back and forth and rotating, thus improving the honing direction accuracy.

[0029] like Figure 4 and Figure 6 As shown, the workpiece positioning component 424 is fixedly connected to the periphery of the workpiece 32 to be processed. The workpiece positioning component 424 is installed on the side of the bracket 422 near the workpiece 32 to be processed. The workpiece positioning component 424 includes a pull member 4241, a movable rod 4242, a spring 4243, and a limiting block 4244. The movable rod 4242 passes through the slot of the bracket 422. The end of the movable rod 4242 near the two sets of brackets 422 is connected to the limiting block 4244. The spring 4243 is sleeved around the movable rod 4242 between the limiting block 4244 and the bracket 422. The end of the movable rod 4242 away from the two sets of brackets 422 is connected to the pull member 4241. A flexible material gasket 42441 is installed on the surface of the limiting block 4244.

[0030] The workpiece clamp 31 holding the workpiece 32 to be processed moves along the slide rail 11, bringing one end of the workpiece 32 close to the workpiece positioning member 424. At this time, the pull members 4241 on both sides are pulled outward, compressing the retractable spring 4243. The limiting block 4244 moves close to the bracket 422. When the end of the workpiece 32 to be processed is between the two sets of workpiece positioning members 424, the pull member 4241 is released. Under the action of the spring 4243, the limiting block 4244 abuts and presses against the periphery of the workpiece 32 to limit the end of the workpiece 32 to be processed. When the workpiece 32 to be processed is pressed, the flexible pad 42441 increases the friction and improves the clamping and limiting effect.

[0031] The above are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics in the solutions has not been described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A horizontal honing machine, comprising a worktable (1), a honing assembly (2), and a workpiece fixture (31), wherein the honing assembly (2) and the workpiece fixture (31) are slidably connected on the worktable (1), the honing assembly (2) comprising a spindle box (21), a spindle (22), and a honing head (23), wherein the workpiece fixture (31) is fixedly connected to a workpiece (32) to be processed, and the spindle box (21) drives the honing head (23) to polish the workpiece (32), characterized in that: It also includes a support connection mechanism (4), which includes a spindle connector assembly (41) and a main body assembly (42). The main body assembly (42) includes a support rod connector (423) and a workpiece positioning component (424). The spindle connector assembly (41) is installed on the periphery of the spindle (22). The support rod connector (423) is laterally slidably connected to the spindle connector assembly (41). The workpiece positioning component (424) is fixedly connected to the periphery of the workpiece (32) to be processed.

2. A horizontal honing mill according to claim 1, characterized in that: The main component (42) also includes a base (421) and a bracket (422). The base (421) is slidably connected to the worktable (1). Two sets of brackets (422) are provided and symmetrically installed above the base (421). Two sets of support rod connectors (423) and workpiece positioning components (424) are provided and respectively installed on the brackets (422).

3. A horizontal honing mill according to claim 2, characterized in that: The support rod connector (423) is installed on the side of the bracket (422) near the spindle (22). The spindle connector assembly (41) includes a kit (411) and a support rod (412). Two sets of kits (411) are provided around the spindle (22). The two sets of kits (411) are fixedly connected by the support rod (412). Two sets of support rods (412) are symmetrically arranged on the left and right. The support rod connector (423) is laterally slidably connected to the support rod (412).

4. A horizontal honing mill according to claim 3, characterized in that: The kit (411) includes an inner ring (4111), a bearing (4112) and an outer ring (4113). The inner ring (4111) is sleeved and fixedly connected to the circumference of the spindle (22), and the outer ring (4113) is sleeved and installed on the circumference of the inner ring (4111) through the bearing (4112).

5. A horizontal honing mill according to claim 3, characterized in that: The support rod (412) has a groove (4121) on its upper and lower surfaces. The support rod connector (423) has a notch on one side connected to the support rod (412). Pulleys (4231) are installed on both the upper and lower sides of the notch. The pulleys (4231) are connected to the grooves (4121) respectively.

6. A horizontal honing mill according to claim 2, characterized in that: The workpiece positioning component (424) is installed on the side of the bracket (422) near the workpiece (32) to be processed. The workpiece positioning component (424) includes a pull member (4241), a movable rod (4242), a spring (4243), and a limiting block (4244). The movable rod (4242) passes through the slot of the bracket (422). The end of the movable rod (4242) near the two sets of brackets (422) is connected to the limiting block (4244). The spring (4243) is sleeved around the movable rod (4242) between the limiting block (4244) and the bracket (422). The end of the movable rod (4242) away from the two sets of brackets (422) is connected to the pull member (4241).

7. A horizontal honing mill according to claim 6, characterized in that: The limiting block (4244) has a flexible material gasket (42441) installed on its surface.

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