Circumferential rotation type tooth shifting device

Abstract

A circumferential rotation type tooth shifting device relates to the field of finger joint cutter polishing and comprises a bottom plate and a servo transmission assembly, the upper end face of a tooth shifting spindle cylinder is fixedly connected with a lantern ring piece, an extension part of the lantern ring piece is detachably provided with a connecting arm piece, and the connecting arm piece is fixedly connected with a tooth shifting head ring part. According to the finger joint cutter tooth surface stirring device, the tooth stirring needle is driven to push an alloy tooth surface of a finger joint cutter to rotate through linkage of the sensor and the servo motor, the alloy surface to be ground is conveyed to a fixed position to be ground every time, the tooth stirring head is driven to rotate, the tooth stirring head is driven to rotate, and the tooth stirring head is driven to rotate. And the tooth shifting needle reversely returns to the next alloy tooth surface and then is reset, the finger joint cutter is shifted to rotate circumferentially through circulation, the grinding amount is the same when the grinding wheel conducts grinding at the same position, indexing errors caused by different thicknesses of the iron plate and the alloy teeth can be avoided, and high-precision grinding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of finger joint grinding, and in particular to a circumferential rotary tooth-picking device. Background Technology

[0002] The finger joint cutters currently available on the market are flat rotary cutting tools. These cutters are characterized by a small number of teeth, with 2-6 alloy teeth on each finger joint cutter. Currently, the tooth-shifting method used during grinding is circumferential indexing, with one tooth shifted before grinding. Due to the cumulative error between the precision of the steel plate and the thickness of the alloy teeth, the grinding amount is not the same when using circumferential indexing, resulting in varying grinding amounts, low overall grinding precision, and high grinding wheel wear. Utility Model Content

[0003] The purpose of this invention is to provide a circumferentially rotating tooth-shifting device to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved through the following technical solution:

[0005] A circumferential rotary gear-shifting device includes a base plate and a servo transmission assembly. A gear-shifting spindle is rotatably mounted on the upper end face of the base plate. A collar is fixedly connected to the upper end face of the gear-shifting spindle. A connecting arm is detachably mounted on the extension of the collar. A gear-shifting head ring is fixedly connected to the connecting arm. A limiting base plate is fixedly connected to the bottom of the gear-shifting head ring. A gear-shifting connecting part is rotatably mounted on the gear-shifting head ring. A gear-shifting needle is fixedly mounted on one side of the gear-shifting connecting part, and a limiting baffle is provided on the other side. A locking block is fixedly provided on the gear-shifting needle. A limiting bolt is threadedly connected to the bottom end face of the limiting base plate, and the top end of the limiting bolt abuts against the lower end face of the limiting baffle.

[0006] Preferably, a spindle component is rotatably mounted in the inner cavity of the tooth-picking spindle cylinder, the spindle component passes through the annular portion of the collar component, and a fixing plate for fixing the finger-joint knife is fixedly mounted on the top end of the spindle component.

[0007] Preferably, a cam component is fixedly sleeved on the tooth-shifting spindle cylinder, and a sensor is installed on the upper end face of the base plate. The sensor senses the protrusion of the cam component and drives the servo transmission assembly to reset the tooth-shifting needle.

[0008] Preferably, the servo transmission assembly includes a servo motor and a synchronous belt assembly. A transmission partition is fixedly installed on the upper surface of the base plate. The output end of the servo motor passes through the transmission partition, and the synchronous belt assembly is connected to the output end of the servo motor and the gear-shifting spindle cylinder.

[0009] Preferably, the main shaft component is connected to the annular portion of the gear-shifting main shaft cylinder and the collar component via bearings.

[0010] Preferably, the back of the card block portion is provided with a smooth arc shape.

[0011] The advantages and positive effects of this utility model are:

[0012] This invention uses the linkage between a sensor and a servo motor to drive a tooth-shifting needle to rotate the alloy tooth surface of the finger-joint cutter. Each time, the alloy surface to be ground is sent to a fixed grinding position. The tooth-shifting needle then returns to the next alloy tooth surface to reset. This cycle is repeated to rotate the finger-joint cutter. Since the grinding wheel grinds at the same position, the grinding amount is the same. This avoids the indexing error caused by the difference in thickness between the iron plate and the alloy tooth, thus achieving high-precision grinding. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a circumferentially rotating tooth-picking device according to this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a circumferential rotating tooth-picking device according to this utility model from another perspective.

[0016] Figure 3 This is a top-view structural diagram of a circumferential rotating tooth-shifting device according to this utility model.

[0017] Figure 4 This is a partial structural diagram of a circumferentially rotating tooth-picking device according to the present invention.

[0018] The markings in the attached diagram are described as follows: base plate 10; transmission partition plate 11; servo motor 12; synchronous belt group 13; finger joint knife 14; alloy tooth 15; fixed plate 16; main shaft 17; collar 18; connecting arm 19; tooth-shifting head ring 20; tooth-shifting connecting part 21; tooth-shifting needle 22; locking block 23; limiting base plate 24; limiting bolt 25; limiting baffle 26; tooth-shifting main shaft cylinder 27; cam 28; sensor 29. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in an illustrative manner. Therefore, they only show the components related to the present invention.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0021] The following is combined with Figure 1-4 This utility model will be described in detail below. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 The directions shown are consistent with the front-facing, back-facing, left-right, up-down directions of the device.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of at least two elements or the interaction relationship of at least two elements, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0024] Please see Figure 1-4This utility model provides an embodiment of a circumferential rotary tooth-grinding device for circumferentially indexing and grinding alloy teeth 15 on a four-tooth finger-joint cutter 14. The device includes a base plate 10, on which a tooth-grinding spindle cylinder 27 is rotatably mounted. A collar 18 is fixedly connected to the upper end face of the tooth-grinding spindle cylinder 27. A connecting arm 19 is detachably mounted on the extension of the collar 18. A tooth-grinding head ring 20 is fixedly connected to the connecting arm 19. A limiting base plate 24 is fixedly connected to the bottom of the tooth-grinding head ring 20. A toothed connecting part 21 is rotatably mounted on part 20. A toothed pin 22 is fixedly mounted on one end of the toothed connecting part 21, and a limiting baffle part 26 is provided on the other end. A locking block part 23 is fixedly provided on the toothed pin 22. The upper part of the locking block part 23 extends out of the top of the toothed pin 22, so that this extended part can hook the tooth surface of the fixed plate 16 to rotate the finger joint knife 14. A limiting bolt 25 is threadedly connected to the bottom end face of the limiting base plate 24. The top end of the limiting bolt 25 abuts against the lower part of the limiting baffle part 26. The end face of the tooth-gripping connection 21 is used to limit the tooth connection. The height of this limit can be adjusted by rotating the limiting bolt 25. A main shaft 17 is rotatably installed in the inner cavity of the tooth-gripping main shaft cylinder 27. The main shaft 17 passes through the annular part of the collar 18 and is connected by a bearing. A fixed plate 16 is fixedly installed on the upper end face of the main shaft 17, and the finger-joint knife 14 is installed on the fixed plate 16. Whenever one alloy tooth 15 is ground and the next alloy tooth 15 needs to be ground, the tooth-gripping main shaft cylinder 27 is driven. The pin rotates, causing the collar 18 to rotate. The locking block 23 on the pin 22 hooks onto the tooth surface of the finger joint 14 to rotate the finger joint 14, pushing the next alloy tooth 15 to be ground to the grinding position. The ground alloy tooth 15 then rotates away. Each time it is pushed to a fixed grinding position, the pin returns to the rear tooth surface of the next alloy tooth 15. The back of the locking block 23 is designed with a smooth arc shape for easy resetting. This cycle is repeated to rotate the finger joint 14 in a circular motion.

[0025] It should be noted that, in this embodiment, the gear-shifting spindle cylinder 27 is driven to rotate by a transmission assembly consisting of a servo motor 12 and a synchronous belt assembly 13. A transmission partition 11 is fixedly installed on the upper surface of the base plate 10. The output end of the servo motor 12 passes through the transmission partition 11. The synchronous belt assembly 13 is connected to the output end of the servo motor 12 and the gear-shifting spindle cylinder 27, controlling the drive of the servo motor 12, thereby causing the gear-shifting spindle cylinder 27 to rotate via the synchronous belt assembly 13.

[0026] It should also be noted that, in this embodiment, a cam component 28 is fixedly sleeved on the tooth-shifting spindle cylinder 27, and a sensor 29 is installed on the upper end face of the base plate 10. The sensor 29 senses the protrusion of the cam component 28, commonly a displacement sensor, to detect when the protrusion of the cam component 28 rotates to the sensor position, thereby triggering the servo drive to drive the tooth-shifting needle 22 to reset. The distance from the protrusion of the cam component 28 to the position of the sensor 29 is set as the distance between two adjacent alloy teeth 15, so that the tooth-shifting needle 22 is reset every time an alloy tooth is shifted.

[0027] In practice, the finger joint 14 to be ground is mounted on the fixed plate 16. After one of the alloy teeth 15 is ground, the servo motor 12 is started to drive the tooth-shifting spindle cylinder 27 to rotate via the synchronous belt group 13. This drives the collar 18, causing the locking block 23 on the tooth-shifting needle 22 to hook onto the tooth surface of the finger joint 14 and rotate the finger joint 14, pushing the next alloy tooth 15 to be ground to the grinding position. The ground alloy tooth 15 then rotates away. Each time it is pushed to a fixed grinding position, the protrusion of the cam 28 rotates to the sensing position of the sensor 29, triggering the tooth-shifting needle to return to the rear tooth surface position of the next alloy tooth 15. The alloy surface to be ground is sent to a fixed position each time. When the grinding wheel grinds at the same position, the grinding amount is the same, which can avoid the indexing error caused by the difference in thickness between the iron plate and the alloy tooth, and achieve high-precision grinding.

[0028] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A circumferential rotary gear-shifting device, comprising a base plate (10) and a servo transmission assembly, characterized in that: A toothed spindle cylinder (27) is rotatably mounted on the upper end face of the base plate (10). A collar (18) is fixedly connected to the upper end face of the toothed spindle cylinder (27). A connecting arm (19) is detachably mounted on the extension of the collar (18). A toothed head ring (20) is fixedly connected to the connecting arm (19). A limiting base plate (24) is fixedly connected to the bottom of the toothed head ring (20). A toothed connecting part (21) is rotatably mounted on the upper part. A toothed pin (22) is fixedly mounted on one side of the toothed connecting part (21), and a limiting baffle part (26) is provided on the other side. A locking block part (23) is fixedly provided on the toothed pin (22). A limiting bolt (25) is threadedly connected to the bottom end face of the limiting base plate (24). The top end of the limiting bolt (25) abuts against the lower end face of the limiting baffle part (26).

2. The circumferential rotary tooth-shifting device according to claim 1, characterized in that: A spindle component (17) is rotatably mounted in the inner cavity of the tooth-picking spindle cylinder (27). The spindle component (17) passes through the annular portion of the collar component (18). A fixing plate (16) for fixing the finger-joint knife is fixedly mounted on the top end of the spindle component (17).

3. The circumferential rotary tooth-shifting device according to claim 2, characterized in that: A cam (28) is fixedly sleeved on the tooth-shifting spindle cylinder (27), and a sensor (29) is installed on the upper end face of the base plate (10). The sensor (29) senses the protrusion of the cam (28) and drives the servo transmission assembly to reset the tooth-shifting needle (22).

4. The circumferential rotary tooth-shifting device according to claim 3, characterized in that: The servo drive assembly includes a servo motor (12) and a synchronous belt group (13). A transmission partition (11) is fixedly installed on the upper surface of the base plate (10). The output end of the servo motor (12) passes through the transmission partition (11). The synchronous belt group (13) is connected to the output end of the servo motor (12) and the gear-shifting spindle cylinder (27).

5. A circumferentially rotating tooth-shifting device according to claim 4, characterized in that: The back of the card block (23) is provided with a smooth arc shape.

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