Resistor disc grinding device

Abstract

The invention discloses a resistor disc grinding device, and relates to the technical field of resistor disc grinding, and the resistor disc grinding device comprises a workbench provided with a rack; the outer rotating disc is rotationally mounted at the top of the workbench; the inner rotating frame is placed in the outer rotating disc, and the inner rotating frame and the outer rotating disc are concentrically arranged; the driving device is installed in the workbench, and the driving device is adapted to be of a structure for driving the inner rotating frame and the outer rotating disc to rotate reversely; the clamping frame is controlled by means of relative rotation of the locking inner ring and the locking outer ring, so that the clamping frame plays a role in limiting and clamping the resistor disc during grinding, the phenomenon that the resistor disc tilts during grinding is avoided, stable clamping of the resistor disc in the grinding process is guaranteed, the disc grinding precision is improved, and the grinding efficiency of the resistor disc is improved. And meanwhile, after polishing is completed, the limitation on the clamping frame is relieved under the driving of the inner rotating frame, so that the clamping frame can relieve clamping of the resistor disc.

Description

Technical Field

[0001] The present invention relates to the technical field of resistor sheet grinding, and in particular to a resistor sheet grinding device. Background Art

[0002] Zinc oxide resistors are the core components of lightning arresters, which are protective devices for power grid operations. Currently, the potential gradient of existing zinc oxide resistors is relatively low, generally ranging from 190 to 220 V / mm. As the voltage of the protective equipment increases, the number of zinc oxide resistors stacked in the lightning arrester will increase, and the volume and weight will also increase.

[0003] As a basic component, the machining accuracy of resistors directly affects the performance of electronic devices. However, traditional grinding devices have many technical problems that need to be solved: 1. In order to facilitate the placement and removal of the resistor, the grinding device usually relies on corresponding holes or mechanical clamping to limit the position. During the grinding process, it cannot effectively limit the displacement of the resistor. The resistor is easily lifted due to friction, resulting in unstable clamping, which in turn affects the grinding accuracy. 2. Since different types of resistors have different sizes and shapes, the clamping structure is often fixed and cannot adapt to the clamping needs of various types of resistors. When different types of resistors need to be processed, the entire clamping device usually needs to be replaced, which not only increases production costs but also reduces production efficiency. 3. The one-way grinding method is used, and the relative movement between the resistor and the grinding disc is single, resulting in slow grinding speed, making it difficult to fully utilize the friction force to improve the grinding effect, making it difficult to improve the processing efficiency.

[0004] Therefore, it is necessary to invent a resistor sheet grinding device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a resistor sheet grinding device to solve the problem raised in the above background technology that the displacement of the resistor sheet cannot be effectively limited during the grinding process, the resistor sheet is easily warped due to friction, resulting in unstable clamping, and thus affecting the grinding accuracy.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a resistor sheet grinding device, comprising: a workbench with a rack mounted on it; An outer rotating disk, which is rotatably mounted on the top of the workbench; An inner rotating frame is placed inside the outer rotating disk, and the inner rotating frame is concentrically arranged with the outer rotating disk; a driving device installed inside the workbench, the driving device being adapted to drive the inner rotating frame and the outer rotating disk to rotate in opposite directions; A clamping frame is provided with an adaptive clamping device and is installed on the inner rotating frame. When the clamping frame is in the grinding state, it clamps the resistor sheet and drives the resistor sheet to rotate along with the inner rotating frame. When the clamping frame is in the non-grinding state, it releases the clamping of the resistor sheet. The clamping frame adjusts the clamping outer diameter under the action of the adaptive clamping device and keeps the clamping frame in the clamping state. A locking outer ring, which is installed between the outer rotating disk and the inner rotating frame; The locking inner ring is provided with a plurality of locking inner rings, which are installed in the locking outer ring and connected to the outer rotating disk. The locking inner ring is extended from the locking outer ring under the drive of the outer rotating disk. When the locking inner ring is extended, it drives the clamping frame to clamp the resistor piece by pushing the adaptive clamping device. When the inner rotating frame rotates in the opposite direction, it drives the locking outer ring to accommodate the locking inner ring, so that the locking inner ring releases the restriction on the adaptive clamping device and the clamping frame releases the clamping of the resistor piece. a one-way limiting assembly installed at the connection between the driving device and the outer rotating disk; The upper grinding disc is mounted on the machine frame and extends into the interior of the outer rotating disc during grinding.

[0007] Optionally, the clamping frame includes: an outer clamping plate mounted on the inner turret; an inner clamping plate rotatably mounted within the outer clamping plate; A ladder block is fixedly mounted on the end of the adaptive clamping device and contacts the locking outer ring and the locking inner ring; The coil spring is detachably mounted at the connection between the outer clamping disc and the inner clamping disc, and is used to drive the inner clamping disc to reset and release the clamping.

[0008] Optionally, a wedge is fixedly mounted on the outer side of the outer clamping disk, and a plurality of first clamping holes in an annular array are formed on the outer clamping disk.

[0009] Optionally, the inner clamping disk is provided with a plurality of second clamping holes corresponding to the first clamping holes, so that when the inner clamping disk rotates relative to the outer clamping disk, the second clamping holes cooperate with the first clamping holes to clamp the resistor.

[0010] Optionally, the adaptive clamping device includes: A guide groove is provided on the clamping plate; An extension rod, which is slidably inserted into the guide groove and fixedly connected to the ladder block; The compression spring is fixedly installed between the extension rod and the inside of the guide groove.

[0011] Optionally, the inner surface of the locking outer ring is provided with a plurality of extension grooves in a ring array, and the locking outer ring is provided with a guide channel for guiding the locking inner ring, and both end openings of the guide channel are connected to the extension grooves.

[0012] Optionally, the inner turret includes: Inner rotating disc; The outer rotating ring is fixedly mounted on the outer side of the inner rotating disk and is concentrically arranged with the inner rotating disk; Wedge grooves are provided on the outer rotating ring and the inner rotating disk and are adapted to fit the wedge blocks; A plurality of receiving channels are provided and opened on the outer rotating ring for receiving the ladder blocks; The limiting protrusions are provided in plurality and are fixedly installed inside the receiving channel to cooperate with the locking outer ring or the locking inner ring to limit the ladder block.

[0013] Optionally, a polygonal sleeve is fixedly mounted on the top of the outer rotating disk, and a plurality of receiving frames connected to the locking inner ring are fixedly mounted on the inner surface of the outer rotating disk, forming a structure in which the outer rotating disk drives the locking inner ring to rotate through the receiving frames when the outer rotating disk rotates, and a plurality of ball bearings in a circular array and in contact with the locking outer ring are mounted on the inner surface of the outer rotating disk, and a lower grinding disk is fixedly mounted on the inner bottom wall of the outer rotating disk.

[0014] Optionally, the driving device includes: A driving motor is detachably mounted on the inner bottom wall of the workbench; The main shaft is detachably mounted on the output end of the driving motor and fixedly connected to the inner rotating frame; a first bevel gear fixedly mounted on the outer side of the main shaft; A second bevel gear is rotatably mounted on the inner wall of the workbench and meshes with the first bevel gear; The third bevel gear is installed at the bottom of the outer rotating disk and is connected to the one-way limiting component. The third bevel gear drives the outer rotating disk to rotate under the drive of the second bevel gear.

[0015] Optionally, a cylinder is fixedly mounted on the top of the frame, and the bottom of the cylinder is rotatably connected to the top of the upper grinding disc.

[0016] Technical effects and advantages of the present invention: 1. The present invention relies on the relative rotation of the locking inner ring and the locking outer ring to achieve control of the clamping frame, so that the clamping frame can limit and clamp the resistor during grinding, avoiding the resistor from warping during grinding, ensuring stable clamping of the resistor during the grinding process, and improving the grinding accuracy. At the same time, after grinding is completed, the clamping frame is driven by the inner rotating frame to release the restriction on the clamping frame, so that the clamping frame can release the clamping of the resistor, facilitating the removal and placement of the resistor.

[0017] 2. The present invention relies on the coordinated arrangement of the guide groove and the extension rod to adjust the relative rotation angle of the outer clamping disk and the inner clamping disk, so that the outer clamping disk and the inner clamping disk can clamp and fix resistors of different models, thereby improving the applicability of the device.

[0018] 3. The present invention can accelerate the grinding speed of the resistor sheet and improve the processing efficiency of the resistor sheet through the relative rotation of the outer rotating disk, the upper grinding disk and the inner rotating frame.

[0019] 4. The present invention can limit the expansion and contraction of the adaptive clamping device after the resistor sheet is clamped by coordinating the limiting protrusion with the locking outer ring and the locking inner ring, thereby preventing the resistor sheet from rotating due to the friction force during the grinding process to overcome the stress of the adaptive clamping device and affect the clamping and fixation of the resistor sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the grinding disc state of the clamping frame of the present invention; Figure 3 Schematic diagram of the front and back states of the grinding disc holder of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at center A; Figure 5 This is a schematic diagram of the structure of the one-way restriction component of the present invention; Figure 6 Schematic diagram of the structure of the driving device of the present invention; Figure 7 This is a schematic diagram of the structure of the clamping frame of the present invention; Figure 8 This is a schematic diagram of the structure of the outer rotating disk of the present invention; Figure 9 This is a schematic diagram of the locking outer ring structure of the present invention; Figure 10 It is a schematic diagram of the grinding plate structure of the present invention.

[0021] In the figure: 100, workbench; 110, frame; 120, cylinder; 200, outer rotating disc; 210, polygonal sleeve; 220, receiving frame; 230, ball bearing; 240, lower grinding disc; 300, inner rotating frame; 310, inner rotating disk; 320, outer rotating ring; 330, wedge groove; 340, storage channel; 350, limiting protrusion; 400, driving device; 410, driving motor; 420, main shaft; 430, first bevel gear; 440, second bevel gear; 450, third bevel gear; 500, clamping frame; 510, outer clamping plate; 511, wedge; 512, first clamping hole; 520, inner clamping plate; 521, second clamping hole; 530, adaptive clamping device; 531, guide groove; 532, extension rod; 533, compression spring; 540, ladder block; 550, coil spring; 600, locking outer ring; 610, extension groove; 620, guide channel; 700, locking inner ring; 800, one-way restriction component; 900. Install the grinding disc. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The present invention provides Figure 1-10 A resistor sheet grinding device is shown, comprising: A workbench 100 is mounted with a frame 110 to support the entire device and ensure normal operation of the device; The outer rotating disk 200 is rotatably mounted on the top of the workbench 100 and polishes the resistor sheet during rotation. A friction layer is filled between the workbench 100 and the outer rotating disk 200 to increase friction. The inner rotating frame 300 is placed inside the outer rotating disk 200 and is arranged concentrically with the outer rotating disk 200. When rotating, it drives the resistor sheet to rotate, and the rotation direction of the resistor sheet is opposite to the rotation direction of the grinding structure to improve the grinding effect and efficiency of the resistor sheet; A driving device 400 is installed inside the workbench 100. The driving device 400 is adapted to drive the inner rotating frame 300 and the outer rotating disk 200 to rotate in opposite directions. When the driving device 400 is started, it drives the outer rotating disk 200 and the inner rotating frame 300 to rotate simultaneously. A clamping frame 500 is provided with an adaptive clamping device 530 and is installed on the inner rotating frame 300. The clamping frame 500 clamps the resistor sheet in the grinding state and drives the resistor sheet to rotate along with the inner rotating frame 300. The clamping frame 500 releases the resistor sheet in the non-grinding state. The clamping outer diameter of the clamping frame 500 is adjusted by the adaptive clamping device 530, and the clamping frame 500 maintains the clamping state. The locking outer ring 600 is installed between the outer rotating disk 200 and the inner rotating frame 300. The contact area between the locking outer ring 600 and the inner rotating frame 300 is provided with a friction layer to increase friction. This allows the locking outer ring 600 to rotate synchronously with the inner rotating frame 300 during rotation. At the same time, it can rotate relative to the inner rotating frame 300 when subjected to a large external force. The locking inner ring 700 is provided in plurality and is installed in the locking outer ring 600 and connected to the outer rotating disk 200. The locking inner ring 700 extends out of the locking outer ring 600 under the drive of the outer rotating disk 200. When extending, the locking inner ring 700 drives the clamping frame 500 to clamp the resistor by pushing the adaptive clamping device 530. When the inner rotating frame 300 rotates in the opposite direction, it drives the locking outer ring 600 to accommodate the locking inner ring 700, so that the locking inner ring 700 releases the restriction on the adaptive clamping device 530 and the clamping frame 500 releases the clamping of the resistor. In the locked state, at least one of the locking inner ring 700 and the locking outer ring 600 is in contact with the clamping frame 500. A one-way limiting assembly 800 is detachably mounted at the connection between the driving device 400 and the outer rotating disk 200. The one-way limiting assembly 800 can be configured as a ratchet so that the driving device 400 drives the outer rotating disk 200 and the inner rotating frame 300 to rotate synchronously in the grinding state, and so that the driving device 400 only drives the inner rotating frame 300 to rotate in the opposite direction in the non-grinding state; The upper grinding disc 900 is mounted on the frame 110 and extends into the interior of the outer rotating disc 200 during grinding.

[0024] The working principle of this embodiment is as follows: When grinding, the upper grinding disc 900 is driven to descend to the inside of the outer rotating disc 200, and then the driving device 400 is started, so that the driving device 400 drives the outer rotating disc 200 and the inner rotating frame 300 to rotate synchronously and in opposite directions. When the inner rotating frame 300 rotates, it will drive the clamping frame 500 to rotate, and at the same time, the locking outer ring 600 is locked to rotate synchronously under the action of friction force; when the outer rotating disc 200 rotates, it will drive the upper grinding disc 900 and the locking inner ring 700 to rotate synchronously. When the locking inner ring 700 rotates, it extends the locking outer ring 600 and squeezes the clamping frame 500, so that the local structure of the clamping frame 500 rotates and clamps the resistor sheet, and when the locking inner ring 700 contacts the locking outer ring 600 and cannot rotate relative to each other, it will drive the locking outer ring 600 to rotate synchronously.

[0025] After the grinding is completed, the driving device 400 is started, so that the driving device 400 drives the inner rotating frame 300 to rotate in the opposite direction. At the same time, under the action of the one-way limiting component 800, the outer rotating disk 200 is not driven by the driving device 400. When the inner rotating frame 300 rotates in the opposite direction, it will drive the locking outer ring 600 to rotate synchronously, while the outer rotating disk 200 will not rotate due to the friction and the obstruction of the one-way limiting component 800. The locking inner ring 700 will be stored inside the locking outer ring 600, and the clamping of the resistor will be released when the clamping frame 500 is offset from the locking inner ring 700 and the locking outer ring 600.

[0026] Among them, the control of the clamping frame 500 is achieved by relying on the relative rotation of the locking inner ring 700 and the locking outer ring 600, so that the clamping frame 500 can limit and clamp the resistor during grinding, avoiding the resistor from warping during grinding, ensuring the stable clamping of the resistor during the grinding process, and improving the grinding accuracy. At the same time, after the grinding is completed, the restriction on the clamping frame 500 is released under the drive of the inner rotating frame 300, so that the clamping frame 500 can release the clamping of the resistor, facilitating the removal and placement of the resistor.

[0027] The resistor sheet can be polished in two directions by means of the relative rotation of the outer rotating disk 200 and the inner rotating frame 300, thereby further improving the polishing efficiency.

[0028] The one-way limiting assembly 800 enables the driving device 400 to normally drive the outer rotating disk 200 to rotate in a predetermined direction, but cannot drive the outer rotating disk 200 to rotate in the reverse direction.

[0029] In some embodiments of the present invention, reference Figure 2 and Figure 3 As shown, the clamping frame 500 includes: The outer clamping plate 510 is mounted on the inner rotating frame 300 and rotates with the inner rotating frame 300; The inner clamping disk 520 is rotatably mounted in the outer clamping disk 510. The inner clamping disk 520 can clamp and fix the resistor when rotating relative to the outer clamping disk 510. The ladder block 540 is fixedly mounted on the end of the adaptive clamping device 530 and contacts the locking outer ring 600 and the locking inner ring 700. The inclined surface of the ladder block 540 enables the ladder block 540 to adjust the length of the adaptive clamping device 530 under the pressure of the locking inner ring 700, while controlling the outer clamping disk 510 and the inner clamping disk 520 to be locked or unlocked. The coil spring 550 is detachably mounted at the connection between the outer clamping disk 510 and the inner clamping disk 520 to provide elastic restoring force to ensure a tight fit between the outer clamping disk 510 and the inner clamping disk 520 .

[0030] The working principle of this embodiment is as follows: Under the pressure of the locking inner ring 700, the trapezoidal block 540 drives the inner clamping disk 520 to rotate relative to the outer clamping disk 510, and drives the coil spring 550 to store force when the inner clamping disk 520 rotates, while driving the inner clamping disk 520 and the outer clamping disk 510 to clamp the resistor sheet, and pushes the adaptive clamping device 530 to adjust the length according to the model of the resistor sheet, and the thickness of the trapezoidal block 540 is greater than the thickness of the locking inner ring 700.

[0031] When the clamping is released, the trapezoidal block 540 is offset from the locking inner ring 700 and the locking outer ring 600, and the stress of the coil spring 550 is released, driving the inner clamping disk 520 to reset and release the clamping of the resistor.

[0032] In some embodiments of the present invention, reference Figure 3 and Figure 7 As shown, a wedge 511 is integrally formed on the outer side of the outer clamping disk 510, and a plurality of first clamping holes 512 evenly distributed in a circular array are opened on the outer clamping disk 510; The inner clamping plate 520 is provided with a plurality of second clamping holes 521 corresponding to the first clamping holes 512, so that when the inner clamping plate 520 rotates relative to the outer clamping plate 510, the second clamping holes 521 cooperate with the first clamping holes 512 to clamp the resistor sheet, so that the resistor sheet can remain stable during the grinding process and is not affected by external interference.

[0033] When the inner clamping plate 520 rotates relative to the outer clamping plate 510, the second clamping hole 521 and the first clamping hole 512 will gradually close and offset, and cooperate with the rubber gasket set on the hole wall to achieve adaptive clamping of different types of resistors.

[0034] In some embodiments of the present invention, reference Figure 3 、 Figure 4 and Figure 7 As shown, the adaptive clamping device 530 includes: A guide groove 531 is formed on the inner clamping plate 520; The extension rod 532 is slidably inserted into the guide groove 531 and fixedly connected to the ladder block 540. The length of the extension rod 532 is adapted to different types of resistors. The compression spring 533 is detachably mounted between the extension rod 532 and the inside of the guide groove 531 , and can provide a stable rebound force under different pressures to ensure the smooth operation of the adaptive clamping device 530 , and the stress of the compression spring 533 is greater than the stress of the coil spring 550 .

[0035] The working principle of this embodiment is as follows: Under the pressure of the locking inner ring 700, the ladder block 540 pushes the extension rod 532 to slide and adjust the extended length, and at the same time compresses the compression spring 533 to store force. When the ladder block 540 is offset from the locking inner ring 700 and the locking outer ring 600, the elastic force of the compression spring 533 is released, causing the extension rod 532 to return to its initial state.

[0036] In some embodiments of the present invention, reference Figure 9 As shown, the inner surface of the locking outer ring 600 is provided with a plurality of extension grooves 610 in a circular array. In the locked state, the locking inner ring 700 extends, pushing the ladder block 540 out of the extension groove 610 and blocking the ladder block 540 from entering the extension groove 610. At the same time, one end of the extension groove 610 is tilted and adapted to the inclined surface of the locking inner ring 700. In the unlocked state, the locking inner ring 700 contracts to open the extension groove 610. When the ladder block 540 is aligned with the extension groove 610, the locking inner ring 700 is locked. When corresponding, it will rotate to the inside of the extension groove 610, causing the inner clamping disk 520 to rotate under the elastic action of the coil spring 550 to release the clamping of the resistor sheet. A guide channel 620 for guiding the locking inner ring 700 is provided on the locking outer ring 600. The openings at both ends of the guide channel 620 are connected to the extension groove 610, so that the locking inner ring 700 can be stably embedded in the extension groove 610 for storage during the movement, and play a guiding role in the rotation of the locking inner ring 700.

[0037] In some embodiments of the present invention, reference Figure 3 and Figure 4 As shown, the inner turret 300 comprises: The inner rotating disk 310 is detachably fixedly connected to the driving device 400 and is driven to rotate by the driving device 400; The outer rotating ring 320 is fixedly mounted on the outer side of the inner rotating disk 310 and is concentrically arranged with the inner rotating disk 310 and fixed together by a plate; The wedge groove 330 is formed on the outer rotating ring 320 and the inner rotating disk 310 and is adapted to the wedge block 511 to ensure that the wedge block 511 can be tightly embedded and work stably, so that the inner rotating disk 310 and the outer rotating ring 320 drive the clamping frame 500 to rotate during the rotation process; The receiving channels 340 are provided in plurality and are opened on the outer rotating ring 320 for receiving the ladder blocks 540 , thereby ensuring that space is provided for the rotation and telescopic reception of the ladder blocks 540 and the adaptive clamping device 530 ; There are multiple limiting protrusions 350, which are fixedly installed inside the storage channel 340. They cooperate with the locking outer ring 600 or the locking inner ring 700 to limit the ladder block 540 to prevent the ladder block 540 from pushing the adaptive clamping device 530 to expand and contract after being stored inside the storage channel 340. The position of the limiting protrusion 350 is set according to the resistor model adapted by this device.

[0038] Among them, the trapezoidal block 540 is restricted by cooperating with the limiting protrusion 350 and the locking outer ring 600 or the locking inner ring 700, so as to prevent the adaptive clamping device 530 from providing space for the rotation of the inner clamping disk 520 by telescoping, so as to prevent the interaction force generated by the resistor sheet during grinding from pushing the inner clamping disk 520 to rotate, affecting the clamping and fixation of the resistor sheet.

[0039] In some embodiments of the present invention, reference Figure 8 As shown, a polygonal sleeve 210 is fixedly installed on the top of the outer rotating disk 200, which is adapted to the upper grinding disk 900 and drives the upper grinding disk 900 to rotate synchronously in the same direction when the polygonal sleeve 210 rotates. The inner surface of the outer rotating disk 200 is detachably installed with a plurality of receiving frames 220 connected to the locking inner ring 700. The receiving frames 220 and the locking inner ring 700 are connected by a pin, forming a structure in which the outer rotating disk 200 drives the locking inner ring 700 to rotate through the receiving frames 220 when it rotates. A plurality of balls 230 in an annular array and in contact with the locking outer ring 600 are installed on the inner surface of the outer rotating disk 200. The friction between the outer rotating disk 200 and the locking outer ring 600 is reduced by the rolling of the balls 230. A lower grinding disk 240 is fixedly installed on the inner bottom wall of the outer rotating disk 200. The lower grinding disk 240 cooperates with the upper grinding disk 900 to drive the resistor to grind when it rotates.

[0040] In some embodiments of the present invention, reference Figure 5 and Figure 6 As shown, the driving device 400 includes: A drive motor 410 is detachably mounted on the inner bottom wall of the workbench 100 . The drive motor 410 is capable of driving the spindle 420 to rotate clockwise or counterclockwise. The main shaft 420 is detachably mounted on the output end of the drive motor 410 and fixedly connected to the inner rotating frame 300. The main shaft 420 rotates when driven by the drive motor 410. The first bevel gear 430 is fixedly mounted on the outer side of the main shaft 420 and rotates under the drive of the main shaft 420; The second bevel gear 440 is rotatably mounted on the inner wall of the workbench 100 and meshes with the first bevel gear 430 to transmit the rotational motion of the first bevel gear 430 to the third bevel gear 450 through the meshing relationship; The third bevel gear 450 is mounted on the bottom of the outer rotating disk 200 and is fixedly connected to the one-way limiting assembly 800 . The third bevel gear 450 drives the outer rotating disk 200 to rotate under the drive of the second bevel gear 440 .

[0041] The working principle of this embodiment is as follows: Start the drive motor 410, so that the drive motor 410 drives the main shaft 420 to rotate, and the main shaft 420 drives the inner rotating frame 300 and the first bevel gear 430 to rotate synchronously. The first bevel gear 430 drives the third bevel gear 450 to rotate under the motion transmission of the second bevel gear 440, so that the first bevel gear 430 and the third bevel gear 450 rotate at the same time, and the rotation directions of the first bevel gear 430 and the third bevel gear 450 are opposite, so that the third bevel gear 450 drives the outer rotating disk 200 to rotate.

[0042] In some embodiments of the present invention, reference Figure 10 As shown, a cylinder 120 is detachably installed on the top of the frame 110, and the bottom of the cylinder 120 is rotatably connected to the top of the upper grinding disc 900. When the cylinder 120 is started, it will drive the upper grinding disc 900 to rise and fall. When descending, the upper grinding disc 900 can be inserted into the interior of the polygonal sleeve 210 and rotate with the polygonal sleeve 210 to grind the resistor. When rising, it will be separated from the polygonal sleeve 210, so that the resistor can be taken and placed normally.

[0043] Working method of the present invention: During grinding, the resistor piece is first placed between the first clamping hole 512 of the outer clamping disk 510 and the second clamping hole 521 of the inner clamping disk 520 in sequence, and then the driving motor 410 is started, so that the driving motor 410 drives the inner rotating frame 300 and the first bevel gear 430 to rotate through the main shaft 420, and the first bevel gear 430 drives the third bevel gear 450 to rotate under the motion transmission of the second bevel gear 440, so that the first bevel gear 430 and the third bevel gear 450 rotate at the same time, so that the third bevel gear 450 drives the outer rotating disk 200 to rotate, and the outer rotating disk 200 rotates in the opposite direction to that of the inner rotating frame 300, and drives the upper grinding disk 900 and the lower grinding disk 240 to grind the resistor piece during the rotation; When the inner rotating frame 300 rotates, it will drive the clamping frame 500 to rotate. At the same time, the locking outer ring 600 will rotate synchronously under the action of friction. When the outer rotating disk 200 rotates, it will drive the upper grinding disk 900 and the locking inner ring 700 to rotate synchronously. Since the locking outer ring 600 rotates in opposite directions to the locking inner ring 700, the locking outer ring 600 will gradually move out of the guide channel 620 and squeeze the ladder block 540, pushing the ladder block 540 out from the inside of the extension groove 610, and the locking outer ring 600 blocks the opening of the extension groove 610, restricting the reset of the ladder block 540, and after the inclined surface of the locking outer ring 600 contacts the inclined surface wall of the extension groove 610, it drives the locking outer ring 600 to overcome the friction with the clamping frame 500 and rotate synchronously. When the trapezoidal block 540 is squeezed by the locked inner ring 700, it will drive the inner clamping disk 520 to rotate relative to the outer clamping disk 510. When the inner clamping disk 520 rotates, it will drive the coil spring 550 to store force, and at the same time drive the second clamping hole 521 and the first clamping hole 512 to gradually offset and close, and cooperate with the gasket set on the hole wall to achieve adaptive clamping of different types of resistors. After clamping the resistor, it will push the extension rod 532 to slide and adjust the extended length, and at the same time compress the compression spring 533 to store force, and completely move to the inside of the storage channel 340 to contact the corresponding limit protrusion 350, so as to maintain the clamping state of the resistor.

[0044] After the grinding is completed, the cylinder 120 is started to drive the upper grinding disc 900 to rise and disengage from the polygonal sleeve 210, and then the driving motor 410 is started, so that the driving motor 410 drives the inner rotating frame 300 and the first bevel gear 430 to rotate in the opposite direction through the main shaft 420. The third bevel gear 450 will slip under the action of the one-way limiting component 800 and cannot drive the outer rotating disk 200 to rotate. When the main shaft 420 drives the inner rotating frame 300 to rotate in the opposite direction, the inner rotating frame 300 will drive the locking outer ring 600 to rotate under the action of friction, and retract the locking inner ring 700 into the locking outer ring 600. The extension slot 610 is opened internally, and when the ladder block 540 rotates to the extension slot 610, the stress of the coil spring 550 will be released, so that the coil spring 550 drives the inner clamping disk 520 to rotate to the initial position. At the same time, the elastic force of the compression spring 533 will also be released to push the extension rod 532 to the initial position. When the ladder block 540 contacts the inner wall of the extension slot 610, it will drive the outer rotating disk 200 to rotate synchronously. Under the action of the one-way limiting component 800, it is not affected by the driving device 400, so that multiple clamping frames 500 and resistors pass through the worker's workstation in turn, and the resistors are taken out and new resistors are put in for grinding.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A resistor sheet grinding device, characterized in that: include: a workbench with a rack mounted on it; An outer rotating disk, rotatably mounted on the top of the workbench; an inner rotating rack placed inside the outer rotating disk; a driving device installed inside the workbench, the driving device being adapted to drive the inner rotating frame and the outer rotating disk to rotate in opposite directions; A clamping frame is provided with an adaptive clamping device and is installed on the inner rotating frame. When the clamping frame is in the grinding state, it clamps the resistor sheet and drives the resistor sheet to rotate along with the inner rotating frame. When the clamping frame is in the non-grinding state, it releases the clamping of the resistor sheet. The clamping frame adjusts the clamping outer diameter under the action of the adaptive clamping device and keeps the clamping frame in the clamping state. A locking outer ring, which is installed between the outer rotating disk and the inner rotating frame; A plurality of locking inner rings are installed in the locking outer ring. The locking inner rings extend out of the locking outer ring under the drive of the outer rotating disk. When extending, the locking inner rings drive the clamping frame to clamp the resistor piece by pushing the adaptive clamping device. When the inner rotating frame rotates in the opposite direction, the locking outer rings are driven to accommodate the locking inner rings, so that the locking inner rings release the restriction on the adaptive clamping device and the clamping frame releases the clamping of the resistor piece. a one-way limiting assembly installed at the connection between the driving device and the outer rotating disk; The upper grinding disc is mounted on the machine frame and extends into the interior of the outer rotating disc during grinding.

2. The resistor sheet grinding device according to claim 1, characterized in that: The clamping frame comprises: an outer clamping plate mounted on the inner turret; an inner clamping plate rotatably mounted within the outer clamping plate; A ladder block, which is fixedly mounted on the end of the adaptive clamping device and contacts the locking outer ring and the locking inner ring; The coil spring is detachably mounted at the connection between the outer clamping disc and the inner clamping disc, and is used to drive the inner clamping disc to reset and release the clamping.

3. The resistor sheet grinding device according to claim 2, characterized in that: A wedge is fixedly installed on the outer side of the outer clamping disk, and a plurality of first clamping holes in an annular array are opened on the outer clamping disk.

4. The resistor sheet grinding device according to claim 3, characterized in that: The inner clamping disk is provided with a plurality of second clamping holes corresponding to the first clamping holes, so that when the inner clamping disk rotates relative to the outer clamping disk, the second clamping holes cooperate with the first clamping holes to clamp the resistor.

5. The resistor sheet grinding device according to claim 2, characterized in that: The adaptive clamping device comprises: A guide groove is provided on the clamping plate; An extension rod, which is slidably inserted into the guide groove and fixedly connected to the ladder block; The compression spring is fixedly installed between the extension rod and the inside of the guide groove.

6. The resistor sheet grinding device according to claim 1, characterized in that: The inner surface of the locking outer ring is provided with a plurality of extension grooves in a ring array, and the locking outer ring is provided with a guide channel for guiding the locking inner ring, and both end openings of the guide channel are connected to the extension grooves.

7. The resistor sheet grinding device according to claim 3, characterized in that: The inner turret comprises: Inner rotating disc; The outer rotating ring is fixedly mounted on the outer side of the inner rotating disk and is concentrically arranged with the inner rotating disk; Wedge grooves are provided on the outer rotating ring and the inner rotating disk and are adapted to fit the wedge blocks; A plurality of receiving channels are provided and opened on the outer rotating ring for receiving the ladder blocks; The limiting protrusions are provided in plurality and are fixedly installed inside the receiving channel to cooperate with the locking outer ring or the locking inner ring to limit the ladder block.

8. The resistor sheet grinding device according to claim 1, characterized in that: A polygonal sleeve is fixedly installed on the top of the outer rotating disk, and a plurality of receiving frames connected to the locking inner ring are fixedly installed on the inner surface of the outer rotating disk, forming a structure in which the outer rotating disk drives the locking inner ring to rotate through the receiving frames when the outer rotating disk rotates. A plurality of ball bearings in a ring array and in contact with the locking outer ring are installed on the inner surface of the outer rotating disk, and a lower grinding disk is fixedly installed on the inner bottom wall of the outer rotating disk.

9. The resistor sheet grinding device according to claim 1, characterized in that: The driving device comprises: A driving motor is detachably mounted on the inner bottom wall of the workbench; The main shaft is detachably mounted on the output end of the driving motor and fixedly connected to the inner rotating frame; a first bevel gear fixedly mounted on the outer side of the main shaft; A second bevel gear is rotatably mounted on the inner wall of the workbench and meshes with the first bevel gear; The third bevel gear is installed at the bottom of the outer rotating disk and is connected to the one-way limiting component. The third bevel gear drives the outer rotating disk to rotate under the drive of the second bevel gear.

10. The resistor sheet grinding device according to claim 1, characterized in that: A cylinder is fixedly installed on the top of the frame, and the bottom of the cylinder is rotatably connected to the top of the upper grinding disc.

Images