Eccentric gyroscope of pneumatic grinding machine

Abstract

The utility model relates to the technical field of pneumatic polishers, and discloses an eccentric gyroscope of a pneumatic polisher, which comprises a mounting part, a moving groove is arranged on one side of the top of the mounting part, a connecting part is arranged in the moving groove, the mounting part is in threaded connection with a lead screw through a connecting seat, and the lead screw is rotatably connected with the mounting part. The adjusting assembly comprises a balancing weight movably connected to the top of the mounting part, a first connecting rod is fixedly connected to one side of the connecting pipe, two second connecting rods are symmetrically and fixedly connected to the balancing weight, and two transverse rods are symmetrically and movably connected to the top of the mounting part. A first connecting rod is symmetrically hinged between one end of the cross rod and the first connecting rod through a hinge piece, and a second connecting rod is symmetrically hinged between the other end of the cross rod and the second connecting rod on the same side through a hinge piece. And the practicability of the device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic polisher technical field especially relates to a eccentric of pneumatic polisher. BACKGROUND

[0002] Pneumatic polisher is a kind of polishing tool driven by air compression, due to its high efficiency, high precision and light etc., is widely used in the surface, angle and depth polishing, deburring, polishing etc. of metal, plastic, wood and other materials.

[0003] The eccentric distance of the existing pneumatic polisher is generally fixed, for example, the eccentric wheel of the existing patent announcement No. UTILITY MODEL CONTENT

[0004] To solve the above background art in the eccentric distance is adjusted, so that the device is difficult to meet different processing needs, thereby reducing the practicability of device problem, the utility model provides a kind of eccentric of pneumatic polisher.

[0005] The utility model adopts the following technical scheme to realize: a kind of eccentric of pneumatic polisher, comprising:

[0006] The top of the installation portion is provided with a moving slot on one side, and the inside of the moving slot is provided with a connecting portion, and the installation portion is screw-connected with a lead screw through a connecting seat, and the lead screw is rotatably connected with the installation portion;

[0007] The adjusting assembly includes a counterweight movably connected to the top of the installation portion, a connecting rod one is fixedly connected to one side of the connecting portion, two groups of connecting rod two are symmetrically fixedly connected to the counterweight, two groups of cross bars are symmetrically movably connected to the top of the installation portion, a connecting rod one is symmetrically hinged between one end of the cross bar and the connecting rod one through a hinge, and a connecting rod two is symmetrically hinged between the other end of the cross bar and the connecting rod two of the same side through a hinge.

[0008] As a further improvement of the above scheme, four groups of installation holes are equidistantly and circumferentially provided on the bottom of the installation portion.

[0009] As a further improvement of the above scheme, the connecting portion is a hollow tubular structure, and the inner side of the connecting portion is provided with an internal thread.

[0010] As a further improvement of the above scheme, the counterweight is designed as a ring-fan structure.

[0011] As a further improvement of the above solution, one side of the bottom of the counterweight block is symmetrically fixedly connected to a limiting slider, and one side of the top of the mounting portion is symmetrically provided with a limiting slot and is slidably connected to the limiting slider.

[0012] As a further improvement of the above solution, the connecting rod 1, the connecting rod 2 and the outer portion of the cross rod are all slidably connected to a guide member, and the guide member is fixedly connected to the mounting portion.

[0013] As a further improvement of the above solution, the connecting portion is slidably connected to the movable groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model rotates the screw rod and slides with the connecting part and the movable groove to drive the connecting part to move back and forth in the movable groove, thereby realizing the position adjustment of the eccentricity, effectively avoiding the problem that it is difficult to adjust the eccentricity, making it difficult for the device to meet different processing requirements, thereby reducing the practicality of the device.

[0016] 2. While adjusting the eccentricity, the utility model utilizes the hinged connection between connecting rod 1 and the cross bar and connecting rod 1, and the hinged connection between the cross bar and connecting rod 2 and connecting rod 2, so as to drive the counterweight block to move in the opposite direction along with the connecting part, thereby ensuring that the device can always maintain a state of completely offsetting the centrifugal force during operation, thereby ensuring the stability of the device during operation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting part of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the counterweight block of the utility model when viewed from above.

[0020] Description of main symbols:

[0021] 1. Mounting part; 2. Connecting part; 3. Screw rod; 101. Counterweight; 102. Connecting rod 1; 103. Connecting rod 2; 104. Cross bar; 105. Connecting rod 1; 106. Connecting rod 2; 107. Limit slider. DETAILED DESCRIPTION

[0022] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example 1

[0023] Please combine Figure 1-3 The eccentric rotor of a pneumatic grinder of this embodiment includes:

[0024] The mounting part 1 has a movable groove on one side of the top of the mounting part 1, and a connecting part 2 is provided inside the movable groove. The mounting part 1 is threadedly connected to a screw rod 3 through a connecting seat, and the screw rod 3 is rotatably connected to the mounting part 1. The bottom of the mounting part 1 has four groups of mounting holes equidistantly circumferentially, which are convenient for connecting and fixing the mounting part 1 to the main body of the pneumatic grinder. The connecting part 2 is slidably connected to the movable groove, which can play a certain guiding role in the movement of the connecting part 2.

[0025] Adjustment assembly, the adjustment assembly includes a counterweight block 101 movably connected to the top of the mounting portion 1, a connecting rod 102 is fixedly connected to one side of the connecting portion 2, two groups of connecting rods 103 are symmetrically fixedly connected to the counterweight block 101, and two groups of cross bars 104 are symmetrically movably connected to the top of the mounting portion 1. One end of the cross bar 104 is symmetrically hinged to the connecting rod 102 with a connecting rod 105 through a hinge, and the other end of the cross bar 104 is symmetrically hinged to the connecting rod 2 103 on the same side with a connecting rod 2 106 through a hinge. The counterweight block 101 is a ring fan shape. Structural design: one side of the bottom of the counterweight 101 is symmetrically fixedly connected to the limiting slider 107, and one side of the top of the mounting part 1 is symmetrically provided with a limiting slide groove and is slidingly connected to the limiting slider 107, which can play a certain guiding role in the horizontal movement of the counterweight 101. The outside of the connecting rod 102, the connecting rod 2 103 and the cross bar 104 are all slidingly connected with guide parts and the guide parts are fixedly connected to the mounting part 1, which can play a certain guiding role in the movement of the connecting rod 102, the connecting rod 2 103 and the cross bar 104.

[0026] The implementation principle of the eccentric weight of a pneumatic grinder in the embodiment of the present application is as follows: the installation part 1 is connected and fixed to the main body of the pneumatic grinder, and the grinding head is fixed to the connecting part 2 by threading to complete the installation. The counterweight block 101 can play a role in offsetting the centrifugal force, so as to ensure the stability of the pneumatic grinder during operation. When the eccentricity needs to be adjusted, the screw rod 3 is rotated, and the sliding cooperation between the connecting part 2 and the movable groove makes it possible to drive the connecting part 2 to move back and forth in the movable groove, thereby realizing the position adjustment of the eccentricity and effectively avoiding the problem of the eccentricity caused by the eccentricity. It is difficult to adjust the eccentricity, which makes it difficult for the device to meet different processing requirements, thereby reducing the practicality of the device. At the same time, in the process of adjusting the eccentricity, the hinge effect between connecting rod 102 and cross bar 104 and connecting rod 1 105, and the hinge effect between cross bar 104 and connecting rod 2 103 and connecting rod 2 106 are utilized to drive the counterweight block 101 to move in the opposite direction along with the connecting part 2, thereby ensuring that the device can always maintain a state of completely offsetting the centrifugal force during operation, thereby ensuring the stability of the device during operation. Example 2

[0027] This embodiment is further improved on the basis of embodiment 1 in that: the connecting portion 2 is a hollow tubular structure, and the inner side surface of the connecting portion 2 is provided with an internal thread, which facilitates the quick connection and fixation of the grinding head and the connecting portion 2.

[0028] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An eccentric rotor for a pneumatic grinder, characterized in that: include: A mounting portion (1), wherein a movable groove is provided on one side of the top of the mounting portion (1), a connecting portion (2) is provided inside the movable groove, a screw rod (3) is threadedly connected to the mounting portion (1) via a connecting seat, and the screw rod (3) is rotatably connected to the mounting portion (1); An adjustment assembly, the adjustment assembly comprising a counterweight (101) movably connected to the top of the mounting portion (1), a connecting rod 1 (102) fixedly connected to one side of the connecting portion (2), two groups of connecting rods 2 (103) symmetrically fixedly connected to the counterweight (101), two groups of cross bars (104) symmetrically movably connected to the top of the mounting portion (1), one end of the cross bar (104) and the connecting rod 1 (102) are symmetrically hinged to a connecting rod 1 (105) via a hinge, and the other end of the cross bar (104) and the connecting rod 2 (103) on the same side are symmetrically hinged to a connecting rod 2 (106) via a hinge.

2. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: The bottom of the mounting portion (1) is provided with four groups of mounting holes equidistantly around the circumference.

3. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: The connecting portion (2) is a hollow tubular structure, and the inner side surface of the connecting portion (2) is provided with an internal thread.

4. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: The counterweight (101) is designed as a ring-sector structure.

5. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: One side of the bottom of the counterweight (101) is symmetrically fixedly connected to a limiting slider (107), and one side of the top of the mounting portion (1) is symmetrically provided with a limiting slot and is slidably connected to the limiting slider (107).

6. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: The exteriors of the connecting rod 1 (102), the connecting rod 2 (103) and the cross rod (104) are all slidably connected to guide members, and the guide members are fixedly connected to the mounting portion (1).

7. The eccentric weight of a pneumatic grinder according to claim 1, characterized in that: The connecting portion (2) is slidably connected to the movable groove.

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