Positioning device for flywheel drilling

Abstract

The utility model relates to the technical field of flywheel processing, in particular to a positioning device for flywheel drilling, which comprises a fixed shaft, a support spring, a first deviation rod, a second deviation rod and an extrusion component, the fixed shaft is fixedly mounted on a base, the support spring is sleeved on the fixed shaft, the first deviation rod and the second deviation rod are distributed and mounted on the fixed shaft, and the extrusion component is arranged on the first deviation rod. Meanwhile, the supporting spring is in contact with the second deviation rod, a first positioning rod and a second positioning rod are arranged at the ends, away from the fixing shaft, of the first deviation rod and the second deviation rod correspondingly, the extrusion assembly is installed on the fixing shaft, and the first positioning rod and the second positioning rod are located on the two sides above a flywheel on the positioning disc by adjusting the positions of the first deviation rod and the second deviation rod; and the first deviation rod and the second deviation rod are pushed through the extrusion assembly, so that the flywheel is fixed to the positioning disc through the first positioning rod and the second positioning rod, and the flywheel is prevented from deviating in the positioning process.

Description

Technical Field

[0001] This utility model relates to the field of flywheel machining technology, and in particular to a positioning device for flywheel drilling. Background Technology

[0002] The flywheel is located at the power output end of the crankshaft, which is the side connected to the gearbox and the power-operating equipment. The main function of the flywheel is to store the energy and inertia of the engine outside of the power stroke. In a four-stroke engine, the energy for intake, compression, and exhaust only comes from the energy stored in the flywheel during the power stroke. When drilling, the flywheel requires a positioning fixture, but conventional positioning fixtures are not very effective.

[0003] Existing patent CN216656416U describes a flywheel circumferential drilling and positioning device, including a processing table. Two support plates are fixedly connected to the top of the processing table. Mounting blocks are movably sleeved on the outer walls of the support plates. An mounting plate is fixedly connected between the two mounting blocks. A connecting plate is fixedly connected to the top of the support plates. An electric push rod is fixed to the bottom of the connecting plate, and the piston end of the electric push rod is fixedly connected to the mounting plate. This invention, when the adjusting rod drives the positioning rod and positioning spring closer to the flywheel via the swing plate, thereby driving the positioning rod to fix the flywheel, facilitating drilling after fixing. This reduces the possibility of flywheel displacement or breakage during the pressing and positioning process, eliminating the need to replace the flywheel during drilling, reducing flywheel processing costs, and improving processing efficiency.

[0004] However, in the process of using a flywheel circumferential drilling and positioning device with an existing patent, the device positions the flywheel by abutting against the outer circumference of the flywheel with positioning rods on both sides. However, the flywheel is a disc-shaped part. If the positioning rods deviate slightly from the center of the flywheel, the flywheel will shift, making it difficult to position the flywheel. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning device for flywheel drilling, which solves the problem that the aforementioned device positions the flywheel by having positioning rods on both sides abutting against the outer circumference of the flywheel. However, since the flywheel is a disc-shaped part, if the positioning rods deviate slightly from the center of the flywheel, the flywheel will shift, making it difficult to position the flywheel.

[0006] To achieve the above objectives, this utility model provides a positioning device for flywheel drilling, including a base, an adjusting shaft, a positioning plate, and a limiting device. The adjusting shaft is rotatably mounted on the base, and the positioning plate is fixedly mounted on the adjusting shaft. The positioning plate has a groove. The limiting device is mounted on the base. The device also includes a positioning device comprising a fixed shaft, a support spring, a first offset rod, a second offset rod, and a pressing assembly. The fixed shaft is fixedly mounted on the base, and the support spring is sleeved on the fixed shaft. The first offset rod and the second offset rod are distributed and mounted on the fixed shaft, with the support spring in contact with the second offset rod. The ends of the first offset rod and the second offset rod away from the fixed shaft are respectively provided with a first positioning rod and a second positioning rod. The pressing assembly is mounted on the fixed shaft.

[0007] The extrusion assembly includes an extrusion ring and a fixing rod, wherein the extrusion ring is threadedly engaged with the fixing shaft; and the fixing rod is fixedly mounted on the extrusion ring.

[0008] The positioning device further includes a separating component, which includes a first separating ring and a second separating ring. The first separating ring is fixedly installed on the first offset rod, and the second separating ring is fixedly installed on the second offset rod. The first separating ring is located inside the second separating ring.

[0009] The limiting device includes a fixed base, a connecting rod, a limiting block, and a pushing assembly. The fixed base is fixedly installed on the side of the base near the adjusting shaft; the connecting rod is slidably installed on the fixed base; the limiting block is fixedly installed on the connecting rod; and the pushing assembly is disposed on the fixed base.

[0010] The pushing assembly includes a pushing rod and a mounting plate. The pushing rod is threaded through the fixed base and rotates with the limiting block. The mounting plate is fixedly mounted on the pushing rod.

[0011] This utility model discloses a positioning device for flywheel drilling. In use, the flywheel is placed on the positioning plate, and then the mounting plate is rotated, causing the push rod to rotate. Since the push rod is threadedly connected to the fixed seat, it pushes the limiting block, causing the limiting block to move towards the adjusting shaft under the sliding cooperation of the connecting rod and the fixed seat, and abut against the adjusting shaft, preventing the adjusting shaft from rotating. Then, the first and second offset rods are rotated respectively, causing the first and second positioning rods to move to the upper sides of the flywheel. Next, the fixed rod is rotated, causing the compression ring to rotate. Since the compression ring is threadedly engaged with the fixed shaft, it moves downward along the fixed shaft during rotation, pushing the first and second offset rods, thereby fixing the flywheel on the positioning plate and preventing the flywheel from shifting during positioning, facilitating subsequent drilling. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of a positioning device for flywheel drilling according to this utility model.

[0014] Figure 2 This is a schematic diagram showing the connection between the first and second separating rings of this utility model.

[0015] In the diagram: 101-base, 102-adjusting shaft, 103-positioning plate, 104-groove, 105-fixed shaft, 106-support spring, 107-first offset rod, 108-second offset rod, 109-compression ring, 110-fixed rod, 111-first partition ring, 112-second partition ring, 113-fixed seat, 114-connecting rod, 115-limiting block, 116-push rod, 117-mounting plate, 118-first positioning rod, 119-second positioning rod. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The embodiment of this application is as follows:

[0018] Please see Figure 1-2 , Figure 1This is a schematic diagram of the overall structure of a positioning device for flywheel drilling according to this utility model. Figure 2 This is a schematic diagram showing the connection between the first and second separating rings of this utility model.

[0019] This utility model provides a positioning device for flywheel drilling: it includes a base 101, an adjusting shaft 102, a positioning disc 103, and a limiting device. It also includes a positioning device comprising a fixed shaft 105, a support spring 106, a first offset rod 107, a second offset rod 108, and a pressing assembly. The pressing assembly includes a pressing ring 109 and a fixed rod 110. The positioning device further includes a separating assembly comprising a first separating ring 111 and a second separating ring 112. The limiting device includes a fixed seat 113, a connecting rod 114, a limiting block 115, and a pushing assembly. The pushing assembly includes a pushing rod 116 and a mounting disc 117. This solution solves the problem that while the aforementioned device uses positioning rods on both sides to abut against the outer circumference of the flywheel for positioning, the flywheel is a disc-shaped part. If the positioning rods deviate slightly from the center of the flywheel, the flywheel will shift, making it difficult to position the flywheel. This solution can be used in flywheel disc drilling positioning scenarios.

[0020] In this embodiment, the first offset rod 107 and the second offset rod 108 are pushed by the extrusion assembly, so that the first positioning rod 118 and the second positioning rod 119 fix the flywheel on the positioning plate 103, thereby preventing the flywheel from shifting during the positioning process.

[0021] The fixed shaft 105 is fixedly mounted on the base 101. The support spring 106 is sleeved on the fixed shaft 105. The first offset rod 107 and the second offset rod 108 are distributed and mounted on the fixed shaft 105, with the support spring 106 in contact with the second offset rod 108. The ends of the first offset rod 107 and the second offset rod 108 away from the fixed shaft 105 are respectively provided with a first positioning rod 118 and a second positioning rod 119. The extrusion assembly is mounted on the fixed shaft 105. The groove 104 in the positioning disk 103 facilitates the collection of debris during the drilling process. The upper end of the fixed shaft 105 is threaded. The first offset rod 107 is located above the second offset rod 108. The first positioning rod 118... The support spring 106 is aligned with the axis of the fixed shaft 105 and is located below the first offset rod 107. The support spring 106 facilitates the reset of the first offset rod 107 and the second offset rod 108. In use, by adjusting the positions of the first offset rod 107 and the second offset rod 108, the first positioning rod 118 and the second positioning rod 119 are positioned on both sides above the flywheel on the positioning disk 103. The pressing assembly pushes the first offset rod 107 and the second offset rod 108, so that the first positioning rod 118 and the second positioning rod 119 fix the flywheel on the positioning disk 103, thus preventing the flywheel from shifting during the positioning process.

[0022] Secondly, the compression ring 109 is threadedly engaged with the fixed shaft 105; the fixed rod 110 is fixedly installed on the compression ring 109, the inner side of the compression ring 109 is threaded, and the fixed rod 110 is circumferentially arranged on the outer periphery of the compression ring 109. By rotating the fixed rod 110, the compression ring 109 is rotated, and the compression ring 109 moves downward along the fixed shaft 105 during the rotation, thereby compressing the first offset rod 107 and the second offset rod 108.

[0023] Furthermore, the first separator ring 111 is fixedly installed on the first offset rod 107; the second separator ring 112 is fixedly installed on the second offset rod 108. The first separator ring 111 is located inside the second separator ring 112, and the diameter of the second separator ring 112 is larger than the diameter of the first separator ring 111. By setting the first separator ring 111 and the second separator ring 112, the first offset rod 107 and the second offset rod 108 are separated, avoiding mutual friction between the first offset rod 107 and the second offset rod 108.

[0024] Furthermore, the fixed seat 113 is fixedly installed on the side of the base 101 near the adjusting shaft 102; the connecting rod 114 is slidably installed on the fixed seat 113; the limiting block 115 is fixedly installed on the connecting rod 114; the pushing assembly is disposed on the fixed seat 113, the fixed seat 113 is provided with threaded holes, and the connecting rod 114 is disposed on both sides of the fixed seat 113. Through the sliding cooperation between the connecting rod 114 and the fixed seat 113, the limiting block 115 is easily guided. The limiting block 115 has an arc-shaped structure, and a rubber layer is provided on the concave side of the limiting block 115. The pushing assembly can push the limiting block 115. In use, under the guidance of the connecting rod 114, the pushing assembly drives the limiting block 115 to abut against the adjusting shaft 102, thereby preventing the adjusting shaft 102 from rotating and achieving the limiting of the adjusting shaft 102.

[0025] Finally, the push rod 116 is threaded through the fixed base 113 and rotatably engages with the limiting block 115; the mounting plate 117 is fixedly mounted on the push rod 116, the push rod 116 is threaded, and the mounting plate 117 is welded to the end of the push rod 116. By rotating the mounting plate 117, the push rod 116 rotates, and the push rod 116 pushes the limiting block 115 through the threaded connection with the fixed base 113.

[0026] In this embodiment, during use, the flywheel is placed on the positioning plate 103, and then the mounting plate 117 is rotated, causing the push rod 116 to rotate. Since the push rod 116 is threadedly connected to the fixed seat 113, the push rod 116 pushes the limiting block 115, causing the limiting block 115 to move towards the adjusting shaft 102 under the sliding engagement of the connecting rod 114 and the fixed seat 113, and abut against the adjusting shaft 102, preventing the adjusting shaft 102 from rotating. Subsequently, the first offset rod 107 and the second offset rod 108 are rotated respectively, causing the first offset rod 107 and the fixed seat 113 to move towards the adjusting shaft 102, and abut against the adjusting shaft 102, preventing the adjusting shaft 102 from rotating. The second offset rod 108 drives the first positioning rod 118 and the second positioning rod 119 to the upper sides of the flywheel, respectively. Then, the fixed rod 110 is rotated, causing the compression ring 109 to rotate. Since the compression ring 109 is threadedly engaged with the fixed shaft 105, the compression ring 109 moves downward along the fixed shaft 105 during rotation and pushes the first offset rod 107 and the second offset rod 108. This causes the first positioning rod 118 and the second positioning rod 119 to fix the flywheel on the positioning plate 103, preventing the flywheel from shifting during positioning and facilitating subsequent drilling.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A positioning device for flywheel drilling, comprising a base, an adjusting shaft, a positioning plate, and a limiting device, wherein the adjusting shaft is rotatably mounted on the base, the positioning plate is fixedly mounted on the adjusting shaft, the positioning plate has a groove, and the limiting device is mounted on the base, characterized in that, It also includes a positioning device; The positioning device includes a fixed shaft, a support spring, a first offset rod, a second offset rod, and a pressing assembly. The fixed shaft is fixedly installed on the base, the support spring is sleeved on the fixed shaft, the first offset rod and the second offset rod are distributed and installed on the fixed shaft, and the support spring is in contact with the second offset rod. The ends of the first offset rod and the second offset rod away from the fixed shaft are respectively provided with a first positioning rod and a second positioning rod, and the pressing assembly is installed on the fixed shaft.

2. The positioning device for flywheel drilling as described in claim 1, characterized in that, The extrusion assembly includes an extrusion ring and a fixing rod, wherein the extrusion ring is threadedly engaged with the fixing shaft; and the fixing rod is fixedly mounted on the extrusion ring.

3. The positioning device for flywheel drilling as described in claim 1, characterized in that, The positioning device further includes a separating component, which includes a first separating ring and a second separating ring. The first separating ring is fixedly installed on the first offset rod, and the second separating ring is fixedly installed on the second offset rod. The first separating ring is located inside the second separating ring.

4. The positioning device for flywheel drilling as described in claim 1, characterized in that, The limiting device includes a fixed base, a connecting rod, a limiting block, and a pushing assembly. The fixed base is fixedly installed on the side of the base near the adjusting shaft; the connecting rod is slidably installed on the fixed base; the limiting block is fixedly installed on the connecting rod; and the pushing assembly is disposed on the fixed base.

5. The positioning device for flywheel drilling as described in claim 4, characterized in that, The pushing assembly includes a pushing rod and a mounting plate. The pushing rod is threaded through the fixed base and rotates with the limiting block. The mounting plate is fixedly mounted on the pushing rod.

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