Grinding device for crankshaft outer milling blade

Abstract

The invention discloses a grinding device for a crankshaft outer milling blade, which comprises a grinding mechanism, a driving mechanism, a driving mechanism and a driving mechanism, the grinding mechanism comprises a grinding table and a sliding block, and a grinding block is arranged on the grinding table; the sliding block is used for arranging a milled cutter blade and can slide relative to the grinding table; the transmission assembly is connected with the sliding block; and the power mechanism is connected with the transmission assembly, and the power mechanism drives the transmission assembly to act so as to drive the sliding block to do linear reciprocating motion along the grinding table. The milling cutter blade grinding device can quickly and conveniently grind a milling cutter blade, and is simple in structure, convenient to use and low in cost.

Description

Technical Field

[0001] The invention relates to a mechanical processing device, in particular to a grinding device. Background Art

[0002] The front cutting edge of the blade used for external milling of automobile crankshafts consists of two planes, upper and lower, which need to be ground after becoming blunt.

[0003] The existing technology generally uses a surface grinder to grind the blade. However, the use of a surface grinder to grind the crankshaft external milling blade has the following disadvantages:

[0004] In terms of processing efficiency: surface grinders can usually only grind one blade at a time, which is inefficient for situations where a large number of blades need to be ground. In addition, the long auxiliary time for clamping and positioning will also reduce the overall processing efficiency.

[0005] Labor intensity and safety: Operating a surface grinder requires manual clamping and parameter adjustment, which is labor-intensive. In addition, during the operation of the grinder, metal dust and grinding wheel fragments may be generated, which poses certain safety hazards.

[0006] Equipment cost and maintenance: The purchase cost of surface grinders is high, and the equipment needs to be maintained regularly, including replacement of grinding wheels, inspection and repair of key components such as the spindle, etc., which increases the cost of use and management difficulty. Summary of the invention

[0007] The object of the present invention is to provide a grinding device for a crankshaft external milling cutter, which can grind the milling cutter quickly and conveniently, and the device has a simple structure, is easy to use and has low cost.

[0008] In order to achieve the above object, the present invention proposes a grinding device for a crankshaft external milling blade, which comprises:

[0009] A grinding mechanism, the grinding mechanism comprising a grinding table and a slider, the grinding table is provided with a grinding block; the slider is used to set the milling blade to be ground, and the slider can slide relative to the grinding table;

[0010] A transmission assembly connected to the slider;

[0011] The power mechanism is connected with the transmission assembly, and the power mechanism drives the transmission assembly to move, thereby driving the slider to perform linear reciprocating motion along the grinding table.

[0012] Furthermore, in the grinding device described in the present invention, a plurality of grinding blocks are provided and arranged on the grinding table along the sliding direction of the slider.

[0013] Furthermore, in the grinding device described in the present invention, the power mechanism comprises:

[0014] Support seat;

[0015] A pedal connecting rod has a pedal at its tail end and a configuration block at its head end. The middle part of the pedal connecting rod is hinged to the support seat through a pedal rotating shaft.

[0016] Furthermore, in the grinding device described in the present invention, the transmission assembly includes:

[0017] A wheel assembly, comprising an output wheel and a crank fixedly connected to the output wheel, wherein the wheel assembly is connected to the pedal connecting rod to convert the reciprocating rotation of the pedal connecting rod around the pedal shaft into the rotation of the output wheel around its own axis;

[0018] A connecting rod assembly is hinged to the crank and the slider.

[0019] Further, in the grinding device described in the present invention, the wheel assembly comprises:

[0020] A first bevel gear, which is fixedly connected to the pedal connecting rod;

[0021] A second bevel gear is rotatably disposed on the support seat and meshedly connected with the first bevel gear;

[0022] A first pulley connected to the second bevel gear and rotating synchronously with the second bevel gear;

[0023] The second pulley serving as the output pulley is connected to the first pulley via a transmission belt.

[0024] Furthermore, in the grinding device described in the present invention, the connecting rod assembly includes:

[0025] Bracket;

[0026] A rocker, the first end of which is hinged to the crank;

[0027] Two first connecting rods are arranged parallel to each other, and their first ends are respectively hinged to the sliders;

[0028] An intermediate connecting rod, both ends of which are respectively hinged to the middle parts of the two first connecting rods; the hinge point between the intermediate connecting rod and one of the first connecting rods is also hinged to the rocker;

[0029] An L-shaped connecting rod, the head end and the bend of which are respectively hinged to the tail ends of the two first connecting rods;

[0030] The tail ends of the two second connecting rods are respectively hinged to the brackets, and the head ends are respectively hinged to the tail end and the bending part of the L-shaped connecting rod.

[0031] Furthermore, in the grinding device described in the present invention, a tool clamping block is provided on the sliding block, the milling cutter blade to be ground is arranged on the tool clamping block, and the tool clamping block can move in a height direction relative to the sliding block.

[0032] Furthermore, in the grinding device described in the present invention, a clamping mechanism is provided on the sliding block, the tool clamping block is connected to the height adjustment rod, and the clamping mechanism can release or clamp the height adjustment rod.

[0033] Furthermore, in the grinding device described in the present invention, the outer circumferential surface of the height adjustment rod is provided with a plurality of slots arranged in sequence along the height direction thereof; the clamping mechanism comprises:

[0034] A cantilever extending outward from the slider;

[0035] A spring buckle is arranged at the end of the cantilever and is arranged in a ring shape on the periphery of the height adjustment rod; when the spring buckle falls into the slot, the clamping mechanism clamps the height adjustment rod; when the height adjustment rod is rotated around its own axis, it rotates relative to the spring buckle, the spring buckle overcomes the spring force and escapes from the slot, and the clamping mechanism releases the height adjustment rod, so that the height adjustment rod can move in the height direction.

[0036] Furthermore, in the grinding device described in the present invention, an adjustment handle is fixedly connected to the height adjustment rod.

[0037] The grinding device described in the present invention is a grinding device for a crankshaft external milling cutter, which can grind the milling cutter quickly and conveniently, avoiding dependence on operator skills, and the device has a simple structure, is easy to use and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the three-dimensional structure of the grinding device described in the present invention in one embodiment is shown.

[0039] Figure 2 A schematic diagram of the structure of the power mechanism of the grinding device described in the present invention in one embodiment is shown.

[0040] Figure 3 The figure shows a partial structure of a grinding device according to an embodiment of the present invention.

[0041] Figure 4 A schematic diagram of a height adjustment mechanism of a grinding device according to the present invention in another embodiment is shown in a cross-sectional perspective.

[0042] Figure 5 The spring clip and the height adjustment rod are shown in an axial cross-section. DETAILED DESCRIPTION

[0043] The grinding device of the present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments of the specification. However, such explanation and illustration do not constitute an improper limitation on the technical solution of the present invention.

[0044] Figure 1 A schematic diagram of the three-dimensional structure of the grinding device described in the present invention in one embodiment is shown.

[0045] like Figure 1 As shown, in some embodiments, the grinding device may include a grinding mechanism, which may include a grinding table 100 and a slider 200, wherein a grinding block 101 is disposed on the grinding table 100; the slider is used to set a milling blade to be ground, and the slider 200 can slide relative to the grinding table 100;

[0046] A transmission assembly 300 connected to the slider 200;

[0047] The power mechanism 400 is connected to the transmission assembly 300. The power mechanism 400 drives the transmission assembly 300 to move, and then drives the slider 200 to perform linear reciprocating motion along the grinding table 100, so that the milling blade (not shown in the figure) set on the slider 200 is ground through the grinding block 101.

[0048] like Figure 1 As shown, in some specific embodiments, a plurality of grinding blocks 101 are provided, which are arranged on the grinding table 100 along the sliding direction of the slider.

[0049] Figure 2 A schematic diagram of the structure of the power mechanism of the grinding device described in the present invention in one embodiment is shown.

[0050] like Figure 2 As shown, in some specific embodiments, the power mechanism may include: a support seat 401; a pedal connecting rod 402, a pedal 403 is provided at its tail end, a counterweight 404 is provided at its head end, and the middle part of the pedal connecting rod is hinged to the support seat 401 through a pedal shaft 405.

[0051] According to this arrangement, when the operator steps on the pedal 403, the pedal connecting rod is driven to rotate a certain angle in the first direction around the pedal axis, and the counterweight 404 rises. When the operator releases the pedal 403, the counterweight drops, driving the pedal connecting rod to rotate a certain angle in the second direction opposite to the first direction.

[0052] Continue reading Figure 2 and Figure 3 In some specific embodiments, the transmission assembly may include:

[0053] The wheel assembly includes an output wheel 301 and a crank 302 fixedly connected to the output wheel 301. The wheel assembly is connected to the pedal connecting rod 402 to convert the reciprocating rotation of the pedal connecting rod 402 around the pedal shaft 405 into the reciprocating rotation of the output wheel 301 around its own axis.

[0054] The connecting rod assembly is hinged to the crank 302 and the slider 200, so as to convert the reciprocating rotation of the output wheel into the linear reciprocating motion of the slider.

[0055] like Figure 2 As shown, in some more specific embodiments, the wheel assembly may include:

[0056] The first bevel gear 303 is fixedly connected to the pedal connecting rod 402 so as to be able to rotate synchronously with the pedal connecting rod. In some more specific embodiments, the first bevel gear 303 can be fixedly connected to the pedal connecting rod 402 by a key. The second bevel gear 304 is rotatably arranged on the support seat 401 and is meshed with the first bevel gear 303. The first pulley 306 is connected to the second bevel gear 304 through a bearing 305 and rotates synchronously with the second bevel gear 304. The second pulley as the output wheel 301 is connected to the first pulley 306 through a transmission belt 307.

[0057] According to this arrangement, the reciprocating rotation of the pedal connecting rod 402 around the pedal rotating shaft 405 is converted into the reciprocating rotation of the output wheel 301 around its own axis.

[0058] like Figure 3 As shown, in some more specific embodiments, the connecting rod assembly may include:

[0059] Bracket 308;

[0060] A rocker 309, the first end of which is hinged to the crank 302;

[0061] Two first connecting rods 310 are arranged parallel to each other, and their first ends are respectively hinged to the slider 200;

[0062] The middle connecting rod 311 has two ends respectively hinged to the middle parts of the two first connecting rods 210; wherein the hinge point between the middle connecting rod 311 and one of the first connecting rods 310 is also hinged to the rocker 309;

[0063] An L-shaped connecting rod 312, whose head end and bend are respectively hinged to the tail ends of the two first connecting rods 310;

[0064] The two second connecting rods 313 have their tail ends hinged to the bracket 308 respectively, and their head ends hinged to the tail end and the bending part of the L-shaped connecting rod 312 respectively.

[0065] According to this arrangement, the connecting rod assembly further converts the reciprocating rotation of the output wheel 301 around its own axis into the linear reciprocating motion of the slider along the grinding table.

[0066] like Figure 1 As shown, in some more specific embodiments, the grinding device may further include a height adjustment mechanism 500, which can adjust the position of the milling blade in the height direction.

[0067] Figure 4 A schematic diagram of a height adjustment mechanism of a grinding device according to the present invention in another embodiment is shown in a cross-sectional perspective.

[0068] like Figure 4 As shown, a tool clamping block 501 is provided on the slider 200, and a milling blade (not shown in the figure) to be ground is set on the tool clamping block. The tool clamping block 501 can move in the height direction relative to the slider, so as to adjust the position of the milling blade in the height direction. A clamping mechanism is provided on the slider 200, and the tool clamping block 501 is connected to a height adjustment rod 502, and the clamping mechanism can release or clamp the height adjustment rod.

[0069] Continue reading Figure 4 The outer circumferential surface of the height adjustment rod 502 is provided with a plurality of slots 5021 arranged in sequence along the height direction thereof. In some more specific embodiments, the clamping mechanism may include: a cantilever 201 extending outward from the slider 200; and a spring buckle 503 arranged at the end of the cantilever 201. Figure 5 As shown, the spring buckle 503 is arranged in an annular shape on the periphery of the height adjustment rod.

[0070] like Figure 4 As shown, when the spring buckle 503 falls into a certain slot of the height adjustment rod, the clamping mechanism clamps the height adjustment rod so that its position in the height direction is fixed.

[0071] Since the slot only extends a certain length on the circumference of the height adjustment rod, but is not distributed on the entire circumference, when the height adjustment rod is rotated around its own axis, it rotates relative to the spring buckle 503, and the spring buckle overcomes the spring force of the spring 5031 and escapes from the slot, and the clamping mechanism releases the height adjustment rod, so that the height adjustment rod can move in the height direction. When the height is adjusted to an appropriate height, the height adjustment rod is rotated, and the spring buckle can fall into another slot again under the action of the spring preload force, thereby completing the position adjustment.

[0072] like Figure 4 As shown, in some embodiments, in order to facilitate the rotation of the height adjustment rod, an adjustment handle 504 may be provided to be fixedly connected to the height adjustment rod 502 .

[0073] It can be seen that the grinding device described in the present invention is a grinding device for crankshaft external milling cutters, which can quickly and conveniently grind the milling cutters, avoiding dependence on operator skills, and the device has a simple structure, is easy to use and low cost.

[0075] The grinding device described in the present invention can replace industrial robots in situations where the requirements for the degree of freedom of automated material grasping are not high, and can quickly and conveniently clamp parts. The device has a simple structure, is easy to use, and is low in cost. Compared with traditional robots, it reduces costs, reduces the number of joints of traditional robots, and reduces the failure rate.

[0076] It should be noted that the prior art in the protection scope of the present invention is not limited to the embodiments given in the present application documents. All prior art that does not contradict the solutions of the present invention, including but not limited to prior patent documents, prior public publications, prior public uses, etc., can be included in the protection scope of the present invention.

[0077] In addition, the combination of the various technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments. All technical features recorded in this case can be freely combined or combined in any way unless there is a contradiction between them.

[0078] It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made therewith can be directly derived or easily associated with by those skilled in the art from the contents disclosed in the present invention, and all should belong to the protection scope of the present invention.

Claims

1. A grinding device for a crankshaft external milling blade, characterized in that: include: A grinding mechanism, the grinding mechanism comprising a grinding table and a slider, the grinding table being provided with a grinding block; The slider is used to set the milling blade to be ground, and the slider can slide relative to the grinding table; A transmission assembly connected to the slider; The power mechanism is connected with the transmission assembly, and the power mechanism drives the transmission assembly to move, thereby driving the slider to perform linear reciprocating motion along the grinding table.

2. The grinding device according to claim 1, characterized in that A plurality of grinding blocks are provided and arranged on the grinding table along the sliding direction of the slider.

3. The grinding device according to claim 1, characterized in that: The power mechanism comprises: Support seat; A pedal connecting rod has a pedal at its tail end and a configuration block at its head end. The middle part of the pedal connecting rod is hinged to the support seat through a pedal rotating shaft.

4. The grinding device according to claim 3, characterized in that The transmission assembly comprises: A wheel assembly, comprising an output wheel and a crank fixedly connected to the output wheel, wherein the wheel assembly is connected to the pedal connecting rod to convert the reciprocating rotation of the pedal connecting rod around the pedal shaft into the rotation of the output wheel around its own axis; A connecting rod assembly is hinged to the crank and the slider.

5. The grinding device according to claim 4, characterized in that: The wheel assembly comprises: A first bevel gear, which is fixedly connected to the pedal connecting rod; A second bevel gear is rotatably disposed on the support seat and meshedly connected with the first bevel gear; A first pulley connected to the second bevel gear and rotating synchronously with the second bevel gear; The second pulley serving as the output pulley is connected to the first pulley via a transmission belt.

6. The grinding device according to claim 4, characterized in that: The connecting rod assembly comprises: Bracket; A rocker, the first end of which is hinged to the crank; Two first connecting rods are arranged parallel to each other, and their first ends are respectively hinged to the sliders; An intermediate connecting rod, both ends of which are respectively hinged to the middle parts of the two first connecting rods; the hinge point between the intermediate connecting rod and one of the first connecting rods is also hinged to the rocker; An L-shaped connecting rod, the head end and the bend of which are respectively hinged to the tail ends of the two first connecting rods; The tail ends of the two second connecting rods are respectively hinged to the brackets, and the head ends are respectively hinged to the tail end and the bending part of the L-shaped connecting rod.

7. The grinding device according to claim 1, characterized in that: The slide block is provided with a tool clamping block, the milling cutter blade to be ground is arranged on the tool clamping block, and the tool clamping block can move in a height direction relative to the slide block.

8. The grinding device according to claim 7, characterized in that: The slide block is provided with a clamping mechanism, the tool clamping block is connected to the height adjustment rod, and the clamping mechanism can release or clamp the height adjustment rod.

9. The grinding device according to claim 8, characterized in that The outer circumferential surface of the height adjustment rod is provided with a plurality of slots arranged in sequence along the height direction thereof; the clamping mechanism comprises: A cantilever extending outward from the slider; A spring buckle is arranged at the end of the cantilever and is arranged in a ring shape on the periphery of the height adjustment rod; when the spring buckle falls into the slot, the clamping mechanism clamps the height adjustment rod; when the height adjustment rod is rotated around its own axis, it rotates relative to the spring buckle, the spring buckle overcomes the spring force and escapes from the slot, and the clamping mechanism releases the height adjustment rod, so that the height adjustment rod can move in the height direction.

10. The grinding device as claimed in claim 8, characterized in that The height adjustment rod is also fixedly connected with an adjustment handle.

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