A honing tool for a workpiece with a peripheral hole

Abstract

The present invention relates to a honing tool for a workpiece with a peripheral hole. The honing tool comprises a support frame and a clamping mechanism arranged on the support frame for clamping the workpiece with a peripheral hole. After the clamping mechanism clamps the workpiece with a peripheral hole and the workpiece with a peripheral hole is subjected to honing processing, the peripheral length extension direction of the workpiece with a peripheral hole is parallel to the horizontal direction. The clamping mechanism presses and clamps the workpiece with a peripheral hole from both ends. The clamping mechanism is rotatably arranged on the support frame. The honing tool also comprises a driving mechanism and a stabilizing mechanism. When the honing tool of the present invention performs honing processing on multiple holes on the outer peripheral surface of the workpiece, there is no need to clamp the workpiece multiple times. The position can be changed by rotating the clamping mechanism through the driving mechanism to drive the workpiece to rotate, thereby avoiding multiple clamping to affect the work efficiency and improving the workpiece processing quality.

Description

Technical Field

[0001] The invention relates to a honing tool for a workpiece with a peripheral hole. Background Art

[0002] Honing is a process that uses a honing bar embedded in a honing head to perform finishing on the finished surface. The honing machine is mainly used for finishing and super finishing of the inner holes of precision parts. There is a cylindrical workpiece with multiple holes distributed on its circumferential surface in sequence and at even intervals, and these holes all need to be honed. These holes are not on the same plane, but on the circumferential surface. Therefore, when processing each hole, it is necessary to make the opening of the hole to be processed face upward so that the honing tool can be inserted into the hole from top to bottom for honing. If the workpiece is clamped multiple times to achieve the purpose of the hole to be processed facing upward, the accuracy requirement of the spacing between the holes cannot be guaranteed. In addition, after the opening of the hole to be processed faces upward, how to make the honing tool be able to be smoothly inserted without causing tool collision and processing deviation is also one of the issues that need to be considered; in addition, because the radial dimensions of each hole of the workpiece have high precision requirements, each hole needs to be at least rough-machined and then fine-machined. If multiple clamping methods are used for processing, not only the dimensional accuracy cannot be guaranteed, but also the efficiency of the honing process is bound to be very low. Therefore, it is also very important to improve the honing efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a honing tool for a workpiece with a peripheral hole.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A honing tool for a workpiece with a peripheral hole, the honing tool comprising a support frame, a clamping mechanism arranged on the support frame for clamping the workpiece with a peripheral hole, after the clamping mechanism clamps the workpiece with a peripheral hole and the workpiece with a peripheral hole undergoes honing processing, the peripheral length extension direction of the workpiece with a peripheral hole is parallel to the horizontal direction, the clamping mechanism presses and clamps the workpiece with a peripheral hole from both ends, the clamping mechanism is rotatably arranged on the support frame, the honing tool also comprises a driving mechanism for driving the clamping mechanism to rotate and thereby driving the workpiece with a peripheral hole to rotate around its own center line in the horizontal direction, and a stabilizing mechanism for stabilizing the clamping mechanism after the clamping mechanism drives the workpiece with a peripheral hole to rotate a predetermined angle, thereby stabilizing the workpiece with a peripheral hole.

[0006] Preferably, the clamping mechanism includes a first clamping assembly and a second clamping assembly respectively located on both sides. After the workpiece with a peripheral hole is clamped, the first clamping assembly abuts and docks with one end of the workpiece with a peripheral hole, and the second clamping assembly abuts and docks with the other end of the workpiece with a peripheral hole.

[0007] Preferably, the first clamping assembly includes a first rotating rod rotatably provided on a support frame, and a first stop plate connected to one end of the first rotating rod close to the second clamping assembly; the second clamping assembly includes a second rotating rod rotatably and slidably provided on the support frame, and a second stop plate sleeved on the outer periphery of one side of the second rotating rod close to the first clamping assembly and threadedly connected thereto.

[0008] Preferably, the first stop plate is disc-shaped, and the stabilizing mechanism includes a plurality of arc-shaped grooves formed on the circumferential surface of the first stop plate, a ball head stabilizing member capable of engaging with the arc-shaped grooves, and a configuration in which the ball head stabilizing member slides relative to the support frame. The stabilizing mechanism also includes a pushing member tending to push the ball head stabilizing member to move so that the ball head stabilizing member engages with the arc-shaped grooves.

[0009] Preferably, the driving mechanism includes a servo motor that is detachably docked between the power output shaft and the first clamping assembly through a coupling mechanism, the servo motor has a first position where the power output shaft is docked with the first clamping assembly and a second position where the power output shaft is away from the first clamping assembly, and the honing tool also includes a pushing mechanism that drives the servo motor to move to the first position or the second position.

[0010] Preferably, the support frame includes a fixed frame and a floating frame rotatably arranged on the fixed frame, and the clamping mechanism is arranged on the floating frame. When the peripheral surface hole workpiece is clamped and the honing tool is inserted into the hole to be processed of the peripheral surface hole workpiece, the peripheral surface hole workpiece can be deflected relative to the honing tool through the floating of the floating frame.

[0011] Preferably, the fixed frame includes a first bottom plate at the bottom, and first vertical plates fixedly connected to both sides of the first bottom plate in the left and right directions, and the floating frame is rotatably connected to the upper parts of the first vertical plates on both sides through a first rotating shaft.

[0012] Preferably, the floating frame includes a closed-loop connector rotatably connected to the first vertical plates on both sides through first rotating shafts on the corresponding sides, and a rotating frame rotatably connected to the other corresponding sides of the closed-loop connector through second rotating shafts, and the clamping mechanism is arranged on the rotating frame.

[0013] Preferably, the extension directions of the first rotating shaft and the second rotating shaft are parallel to the horizontal direction, and the axis extension line of the first rotating shaft is perpendicular to the axis extension line of the second rotating shaft.

[0014] Preferably, the rotating frame includes second vertical plates located on both sides and rotatably connected to the two sides of the closed-loop connecting member through second rotating shafts, and a second bottom plate fixedly connected to the lower ends of the second vertical plates on both sides. After the workpiece with a circumferential hole is clamped, the workpiece with a circumferential hole is located above the upper surface of the second bottom plate and within the closed loop of the closed-loop connecting member.

[0015] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] The honing fixture for a workpiece with a circumferential hole of the present invention can make the workpiece with a circumferential hole clamped thereon rotate following the power of a driving mechanism to adjust its circumferential position, thereby gradually replacing the holes on its circumferential surface to align with the honing tool rod so as to perform honing processing on each hole. In addition, the stabilizing mechanism can stabilize the workpiece with a circumferential hole in a required position so as to undergo honing processing. When the honing fixture of the present invention performs honing processing on multiple holes on the outer circumferential surface of the workpiece, there is no need to clamp the workpiece multiple times. The position can be changed by rotating the clamping mechanism through the driving mechanism to drive the workpiece to rotate, thereby avoiding multiple clamping to affect work efficiency and improving the workpiece processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structural diagram of the honing tool of the present invention (the driving mechanism and the pushing mechanism are omitted):

[0018] Figure 2 The three-dimensional structural diagram of the honing tool of the present invention (the driving mechanism and the pushing mechanism are omitted):

[0019] Figure 3 It is a side view structural schematic diagram of the driving mechanism and the pushing mechanism of the present invention;

[0020] Among them: 100, workpiece; 11, first rotating rod; 12, first stop plate; 13, first connecting chuck; 21, second rotating rod; 22, second stop plate; 23, round handle; 311, first base plate; 312, first vertical plate; 321, first base plate; 322, second vertical plate; 33, closed-loop connector; 40, arc-shaped groove; 41, seat body; 42, ball head stabilizer; 50, second connecting chuck; 51, servo motor; 501, slide rail; 52, cylinder. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 3 As shown, a honing tool for a workpiece 100 with a peripheral hole is provided. The honing tool comprises a support frame and a clamping mechanism disposed on the support frame for clamping the workpiece 100 with a peripheral hole. After the clamping mechanism clamps the workpiece 100 with a peripheral hole and the workpiece 100 with a peripheral hole is subjected to honing processing, the peripheral length extension direction of the workpiece 100 with a peripheral hole is parallel to the horizontal direction. The clamping mechanism presses and clamps the workpiece 100 with a peripheral hole from both ends thereof. The clamping mechanism is rotatably disposed on the support frame. The honing tool also comprises a driving mechanism for driving the clamping mechanism to rotate and thereby driving the workpiece 100 with a peripheral hole to rotate around its own center line in the horizontal direction, and a stabilizing mechanism for stabilizing the clamping mechanism after the clamping mechanism drives the workpiece 100 with a peripheral hole to rotate a predetermined angle, thereby stabilizing the workpiece 100 with a peripheral hole.

[0023] The clamping mechanism includes a first clamping assembly and a second clamping assembly respectively located on both sides. After the peripheral surface perforated workpiece 100 is clamped, the first clamping assembly abuts and docks with one end of the peripheral surface perforated workpiece 100, and the second clamping assembly abuts and docks with the other end of the peripheral surface perforated workpiece 100. The first clamping assembly is rotatably arranged on the support frame, and the second clamping assembly is rotatably and slidably arranged on the support frame. When the second clamping assembly slides, the second clamping assembly can approach or move away from the first clamping assembly. When the second clamping assembly approaches the first clamping assembly, the workpiece 100 can be clamped between the two for honing processing. When the second clamping assembly moves away from the first clamping assembly, the workpiece 100 can be removed or replaced with another workpiece 100 for processing.

[0024] Specifically, the first clamping assembly includes a first rotating rod 11 rotatably disposed on a support frame, a first disc-shaped retaining plate 12 connected to one end of the first rotating rod 11 close to the second clamping assembly, and the second clamping assembly includes a second rotating rod 21 rotatably and slidably disposed on the support frame, and a disc-shaped second retaining plate 22 sleeved on the outer periphery of one side of the second rotating rod 21 close to the first clamping assembly and threadedly connected thereto. The other side of the second rotating rod 21 (a round handle 23 held by a human hand is provided on the outer end of the second rotating rod 21, and the second rotating rod 21 can be pushed away from or close to the workpiece 100 by pushing and pulling the second retaining plate 22. After the second retaining plate 22 is pushed close to the workpiece 100, the workpiece 100 can be pressed tightly between the first retaining plate 12 and the first retaining plate 12 by tightening the second retaining plate 22.

[0025] The stabilizing mechanism includes a plurality of arc-shaped grooves 40 provided on the circumferential surface of the disc-shaped first stop plate 12, and a ball head stabilizing member 42 capable of engaging with the arc-shaped grooves 40. A seat body 41 is provided on the support frame, and the ball head stabilizing member 42 is slidably provided on the seat body 41 along the up and down directions, that is, the ball head stabilizing member 42 can slide relative to the support frame. The stabilizing mechanism also includes a pushing member (a spring, not shown) tending to push the ball head stabilizing member 42 to move so that the ball head stabilizing member 42 engages with the arc-shaped grooves 40. The number of arc-shaped slots 40 is the same as the number of holes opened on the circumference of the workpiece 100, and the positions correspond one to one, that is, after the driving mechanism drives the first rotating rod 11, the first retaining plate 12 and the workpiece 100 to rotate a predetermined angle, the ball head stabilizer 42 is just aligned with an arc-shaped slot 40, so the ball head stabilizer 42 is inserted into the arc-shaped slot 40 under the push of the elastic member and engaged with it, and at this time, the holes on the circumference of the workpiece 100 also happen to extend in the vertical direction and are aligned with the honing tool, so the honing tool can be inserted into the hole for honing. During the honing process, the workpiece 100 is only subjected to force in the circumferential direction of the honing tool, so the ball head stabilizer The clamping force between 42 and the arc-shaped slot 40 is sufficient to keep the workpiece 100 stable. After one hole is processed, when the workpiece 100 needs to be rotated to process another hole thereon, the driving force of the driving mechanism is greater than the clamping force between the ball head stabilizer 42 and the arc-shaped slot 40, that is, the first rotating rod 11, the first retaining plate 12 and the workpiece 100 can be rotated, and the ball head end of the ball head stabilizer 42 slides out of the arc-shaped slot 40 and abuts against the circumferential surface of the first retaining plate 12. During the rotation, the elastic member is compressed. When it rotates to the next arc-shaped slot 40 corresponding to the ball head stabilizer 42, the elastic member pushes the ball head stabilizer 42 again to engage with the arc-shaped slot 40.

[0026] In addition, a plurality of fixing pins are arranged on the surface where the first retaining plate 12 and the workpiece 100 are connected. Before clamping the workpiece 100, the positioning holes on the end surface of the workpiece 100 are aligned with the fixing pins and plugged, and then the second rotating rod 21 is operated to make the second retaining plate 22 press the workpiece 100 tightly. After the workpiece 100 is clamped, it can be accurately positioned between the first retaining plate 12 and the second retaining plate 22; that is, after the workpiece 100 is clamped, each hole on the circumference of the workpiece 100 corresponds to each arc-shaped slot 40 on the outer circumference of the first retaining plate 12. In addition, both the first rotating rod 11 and the second rotating rod 21 are rotatably connected to the support frame through a rotating bearing.

[0027] Further, the support frame includes a fixed frame and a floating frame rotatably arranged on the fixed frame, and the clamping mechanism is arranged on the floating frame. When the peripheral hole workpiece 100 is clamped and the honing tool is inserted into the hole to be processed of the peripheral hole workpiece 100, the peripheral hole workpiece 100 can be deflected relative to the honing tool through the floating of the floating frame. Specifically, the fixed frame includes a first bottom plate 311 located at the bottom, a first vertical plate 312 fixedly connected to both sides of the first bottom plate 311 in the left and right directions, and the floating frame is rotatably connected to the upper part of the first vertical plate 312 on both sides through the first rotating shaft. The floating frame includes a closed-loop connector 33 rotatably connected to the first vertical plates 312 on both sides through the first rotating shaft on the corresponding two sides, and a rotating frame rotatably connected to the other corresponding two sides of the closed-loop connector 33 through the second rotating shaft. In addition, the extension direction of the first rotating shaft and the second rotating shaft is parallel to the horizontal direction, and the axis extension line of the first rotating shaft is perpendicular to the axis extension line of the second rotating shaft.

[0028] The clamping mechanism is arranged on the rotating frame, and the rotating frame includes a second vertical plate 322 located on both sides and rotatably connected to the two sides of the closed-loop connecting member 33 through a second rotating shaft, and a second bottom plate 321 fixedly connected to the lower end of the second vertical plate 322 on both sides. After the peripheral hole workpiece 100 is clamped, the peripheral hole workpiece 100 is located above the upper surface of the second bottom plate 321 and is located within the closed loop of the closed-loop connecting member 33.

[0029] By setting the structure and connection relationship of the closed-loop connector 33 of the fixed frame and the floating frame and the rotating frame, the workpiece 100 clamped thereon can be slightly deflected when the honing tool enters the hole, so as to facilitate the honing tool to enter the hole smoothly, thereby avoiding the tool breakage or eccentricity and scrapping of the workpiece 100.

[0030] In this example, the driving mechanism includes a servo motor 51 that is detachably connected to the power output shaft and the first clamping assembly through a coupling mechanism. The servo motor 51 has a first position where the power output shaft is connected to the first clamping assembly and a second position where the power output shaft is separated from the first clamping assembly. The honing tool also includes a pushing mechanism that drives the servo motor 51 to move to the first position or the second position.

[0031] The docking assembly includes a first connecting chuck 13 and a second connecting chuck 50 respectively fixedly connected to the power output shaft of the servo motor 51 and the end of the first rotating rod 11. When the servo motor 51 moves to the first position, the first connecting chuck 13 and the second connecting chuck 50 are radially engaged, so that the rotation of the power output shaft of the servo motor 51 can drive the first rotating rod 11, the first stop plate 12 and the workpiece 100 to rotate;

[0032] In this example, the pushing mechanism is a cylinder 52, and the base of the servo motor 51 is slidably arranged on the slide rail 501. The cylinder 52 pushes or pulls the servo motor 51 to slide on the slide rail 501 to a first position or a second position; when it is necessary to adjust the position of the peripheral hole workpiece 100 to replace another hole for honing, it is necessary to move the servo motor 51 to the first position, so that the rotation of the power output shaft of the servo motor 51 can drive the first clamping assembly to rotate, and then drive the workpiece 100 to rotate to adjust the position; when the position of the workpiece 100 is changed for processing, it is necessary to move the servo motor 51 to the second position, that is, the power output shaft of the servo motor 51 is disengaged from the first clamping assembly to avoid interference with the floating of the floating frame, thereby ensuring that the workpiece 100 can swing so that the honing tool can be inserted smoothly.

[0033] In addition, holes are provided in the middle of the first bottom plate 311 and the second bottom plate 321. Since each hole of the workpiece 100 generally needs to undergo multiple processing steps, at least rough processing and then fine processing, the entire honing tool needs to change workstations to accept different processing. The holes provided in the first bottom plate 311 facilitate its positioning at rough processing, fine processing and other processing stations, and a stopper can be set in the hole on the second bottom plate 321 to prevent the workpiece 100 from swinging too much.

[0034] To sum up, the honing tool for a workpiece with a circumferential hole of the present invention can make the workpiece with a circumferential hole clamped thereon rotate following the power of the driving mechanism to adjust its circumferential position, thereby gradually replacing the holes on its circumferential surface to align with the honing tool rod so as to perform honing processing on each hole. In addition, the stabilizing mechanism can stabilize the workpiece with a circumferential hole in a required position so as to undergo honing processing. When the honing tool of the present invention performs honing processing on multiple holes on the outer circumferential surface of the workpiece, there is no need to clamp the workpiece multiple times. The position can be changed by rotating the clamping mechanism through the driving mechanism to drive the workpiece to rotate, thereby avoiding multiple clamping to affect work efficiency and improving the processing quality of the workpiece.

[0035] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A honing tool for a workpiece with a peripheral hole, characterized in that: The honing tool comprises a support frame, a clamping mechanism arranged on the support frame for clamping the workpiece with a circumferential hole, after the clamping mechanism clamps the workpiece with a circumferential hole and when the workpiece with a circumferential hole undergoes honing, the circumferential length extension direction of the workpiece with a circumferential hole is parallel to the horizontal direction, the clamping mechanism presses and clamps the workpiece with a circumferential hole from both ends thereof, the clamping mechanism is rotatably arranged on the support frame, the honing tool further comprises a driving mechanism for driving the clamping mechanism to rotate and thereby driving the workpiece with a circumferential hole to rotate around its own center line in the horizontal direction, and a stabilizing mechanism for stabilizing the clamping mechanism after the clamping mechanism drives the workpiece with a circumferential hole to rotate by a predetermined angle, thereby stabilizing the workpiece with a circumferential hole; The clamping mechanism comprises a first clamping assembly and a second clamping assembly respectively located on two sides; The first clamping assembly includes a first rotating rod rotatably disposed on the support frame, and a first stop plate connected to an end of the first rotating rod close to the second clamping assembly; The first retaining plate is disc-shaped, and the stabilizing mechanism includes a plurality of arc-shaped grooves on the circumferential surface of the first retaining plate, a ball head stabilizing member capable of engaging with the arc-shaped grooves, and the ball head stabilizing member is arranged to slide relative to the support frame. The stabilizing mechanism also includes a pushing member tending to push the ball head stabilizing member to move so that the ball head stabilizing member engages with the arc-shaped grooves, and the pushing member is a spring.

2. The honing tool for a workpiece with a peripheral hole according to claim 1, characterized in that: After the workpiece with a circumferential hole is clamped, the first clamping assembly abuts and docks with one end of the workpiece with a circumferential hole, and the second clamping assembly abuts and docks with the other end of the workpiece with a circumferential hole.

3. The honing tool for a workpiece with a peripheral hole according to claim 2, characterized in that: The second clamping assembly includes a second rotating rod rotatably and slidably disposed on the support frame, and a second retaining plate sleeved on the outer periphery of one side of the second rotating rod close to the first clamping assembly and threadedly connected thereto.

4. The honing tool for a workpiece with a peripheral hole according to claim 2, characterized in that: The driving mechanism includes a servo motor that is detachably connected to the power output shaft and the first clamping assembly through a coupling mechanism. The servo motor has a first position where the power output shaft is connected to the first clamping assembly and a second position where the power output shaft is separated from the first clamping assembly. The honing tool also includes a pushing mechanism that drives the servo motor to move to the first position or the second position.

5. The honing tool for a workpiece with a peripheral hole according to claim 1, characterized in that: The support frame includes a fixed frame and a floating frame rotatably arranged on the fixed frame. The clamping mechanism is arranged on the floating frame. When the peripheral surface opening workpiece is clamped and the honing tool is inserted into the hole to be processed of the peripheral surface opening workpiece, the peripheral surface opening workpiece can be deflected relative to the honing tool through the floating of the floating frame.

6. The honing tool for a workpiece with a peripheral hole according to claim 5, characterized in that: The fixed frame includes a first bottom plate at the bottom, and first vertical plates fixedly connected to both sides of the first bottom plate in the left and right directions. The floating frame is rotatably connected to the upper parts of the first vertical plates on both sides through a first rotating shaft.

7. The honing tool for a workpiece with a peripheral hole according to claim 6, characterized in that: The floating frame includes a closed-loop connector rotatably connected to the first vertical plates on both sides through the first rotating shaft on corresponding sides, and a rotating frame rotatably connected to the other corresponding sides of the closed-loop connector through a second rotating shaft, and the clamping mechanism is arranged on the rotating frame.

8. The honing tool for a workpiece with a peripheral hole according to claim 7, characterized in that: The extension directions of the first rotating shaft and the second rotating shaft are parallel to the horizontal direction, and the axis extension line of the first rotating shaft is perpendicular to the axis extension line of the second rotating shaft.

9. The honing tool for a workpiece with a peripheral hole according to claim 7, characterized in that: The rotating frame includes second vertical plates located on both sides and rotatably connected to the two sides of the closed-loop connecting member through the second rotating shaft, and a second bottom plate fixedly connected to the lower ends of the second vertical plates on both sides. After the circumferential hole workpiece is clamped, the circumferential hole workpiece is located above the upper surface of the second bottom plate and within the closed loop of the closed-loop connecting member.

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