Grinding device for insert nut

Abstract

The utility model provides a grinding device for insert nuts, which comprises a rack, a cushion block is horizontally arranged at the top end of the rack, transmission rollers driven by a motor are rotatably arranged on the left side and the right side of the cushion block, an abrasive belt cushioned by the cushion block is connected between the two transmission rollers, a frame is arranged in the middle of the cushion block, and the abrasive belt is connected with the cushion block. The top end of the frame is downwards provided with an air cylinder, the end of a piston rod of the air cylinder is horizontally and oppositely connected with a material supporting piece with the right end open, the material supporting piece is used for supporting a plurality of insert nuts and pressing the insert nuts downwards to the abrasive belt, and the right end of the material supporting piece is connected with a blocking strip in a twisted mode. The insert nut grinding and deburring device has the advantages that insert nuts can be ground and deburred in batches, the ground insert nuts can be pulled out without hand contact, efficiency is improved, and the insert nuts cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of insert nuts, in particular to a grinding device for insert nuts. Background Art

[0002] An insert nut is an insert with an internal thread and knurling or other patterns on the outside, which is embedded in an automotive plastic product to make the plastic product an effective thread. The insert nut needs to be knurled in subsequent processing. The outer surface of the insert is usually composed of a series of patterns. These patterns can increase the friction between the nut and the connector, thereby improving the fastening effect of the fastener. At the same time, the design of the knurling texture can also increase the surface area of ​​the nut, so that it can better resist vibration and loosening during the fastening process. The lower end of the existing insert nut is provided with an annular protrusion. During the production process, the lower end surface of the insert nut has burrs, which need to be polished and deburred. At present, the staff hold the insert nuts one by one and put them on the sanding machine for grinding. The polished insert nuts are very hot, which is inefficient and easy to get injured. Summary of the invention

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a grinding device for an insert nut.

[0004] The utility model provides a grinding device for insert nuts, comprising a frame 1, a cushion block 2 is horizontally arranged at the top of the frame 1, driving rollers driven by a motor 8 are rotatably arranged on the left and right sides of the cushion block 2, an abrasive belt 3 raised by the cushion block 2 is connected between the two driving rollers, a frame 4 is arranged in the middle of the cushion block 2, a cylinder 7 is downwardly arranged at the top of the frame 4, a right-end open frame piece 5 is horizontally connected to the end of the piston rod of the cylinder 7, the frame piece 5 is used to raise a plurality of insert nuts and press them down to the abrasive belt 3, and a retaining bar 6 is twisted at the right end of the frame piece 5.

[0005] Furthermore, the frame member 5 is composed of a connecting block on the left side connecting two symmetrical pressure strips in the front and rear, a frame strip is transversely arranged on the inner side of the upper end of the pressure strip, and the middle of the pressure strip extends longitudinally outward to form a connecting plate.

[0006] Furthermore, a guide rod 11 passing through the frame 4 is vertically arranged at the top end of the connecting plate, and an elastic member connecting the guide rod 11 and the frame 4 is disposed on the outer sleeve of the guide rod 11 .

[0007] Furthermore, one of the transmission rollers and the output shaft of the motor 8 are keyed with gears, and the two gears are connected by a toothed belt 9.

[0008] Furthermore, a blanking plate 10 is provided at the right end of the cushion block 2 in an inclined manner from the upper left to the lower right.

[0009] Furthermore, the number of the insert nuts supported by the support member 5 is greater than or equal to 5 and less than or equal to 20.

[0010] The utility model has the advantages that: the insert nuts can be ground and deburred in batches, and the ground insert nuts can be pulled out without hand contact, thereby improving efficiency and preventing injuries; the sanding belt raised by the pad can avoid being suspended in the air, and can grind the lower end surface of the insert nut when the inserted nut is pressed down; the insert nut enters from the right end opening and is supported on the frame member through the annular groove of the insert nut; the annular groove of the outer ring of the insert nut is supported on the frame bar, and when the frame member descends, the pressure bar presses down the annular protrusion at the lower end of the insert nut, so that the lower end surface of the insert nut contacts the running sanding belt; the guide rod ensures that the cylinder can maintain stability during operation and withstands lateral force to avoid damage to the cylinder; the pulled out insert nut falls to the unloading plate and then rolls down, avoiding contact between the insert nut and the sanding belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 It is a right side view of the utility model;

[0014] Figure 4 It is a schematic diagram of the structure of the utility model when the insert nut is set up;

[0015] Figure 5 It is a right side view of the utility model when the insert nut is set. DETAILED DESCRIPTION

[0016] The following is a detailed description of the embodiments of the present utility model in conjunction with the accompanying drawings.

[0017] See also Figures 1 to 5The utility model provides a grinding device for insert nuts, which includes a frame 1, a pad 2 is horizontally arranged on the top of the frame 1, and a driving roller driven by a motor 8 is rotatably arranged on the left and right sides of the pad 2. An abrasive belt 3 padded by the pad 2 is connected between the two driving rollers. The abrasive belt rotates counterclockwise when viewed from the front. The abrasive belt padded by the pad can avoid being suspended in the air, and can grind the lower end surface of the insert nut when the pressed insert nut contacts. A frame 4 is arranged in the middle of the pad 2, and a cylinder 7 is arranged downward at the top of the frame 4. The cylinder is a double-guide rod cylinder to ensure the stability and accuracy of the piston during movement. The piston rod end of the cylinder 7 is horizontally connected to a frame material part 5 with an open right end. The insert nut enters from the open right end and is mounted on the frame material part through the annular groove of the insert nut. The frame material part 5 is used to raise and press a plurality of insert nuts onto the abrasive belt 3, and a retaining bar 6 is twisted at the right end of the frame material part 5. After opening the baffle, the insert nut enters the frame part from the right end opening, and is mounted on the frame bar through the annular groove on the outer ring of the insert nut. After releasing the baffle, the baffle is pressed on the right end of the frame part through the torsion spring at the hinge, and the cylinder drives the frame part to descend to the bottom. The frame part presses the insert nut uniformly on the sanding belt, and the sanding belt driven by the motor flattens the lower end surface of the insert nut. Then the cylinder drives the frame part to rise and reset with the insert nut uniformly. The staff opens the baffle and uses tools (such as a lever) to push the insert nut out of the frame part to the opening without touching the ground insert nut.

[0018] See also Figure 1 , Figure 3 The frame member 5 is composed of a connecting block on the left side connecting two symmetrical pressure strips. A frame strip is arranged transversely on the inner side of the upper end of the pressure strip, and the middle of the pressure strip extends longitudinally outward to form a connecting plate. The piston rod of the cylinder is connected to the connecting plate. The insert nut enters the frame member from the right end opening, and the annular groove of the outer ring of the insert nut is supported by the frame strip. When the frame member descends, the frame strip presses down the annular protrusion at the lower end of the insert nut (the frame strip is suspended in the annular groove of the insert nut), so that the lower end surface of the insert nut contacts the running sand belt, thereby grinding and deburring the lower end surface of the insert nut.

[0019] The top of the connecting plate is vertically provided with a guide rod 11 passing through the frame 4, and the guide rod 11 is provided with an elastic member connecting the guide rod 11 and the frame 4. The guide rod is to ensure that the cylinder can maintain stability during operation and withstand lateral forces to prevent the cylinder from being damaged.

[0020] One of the transmission rollers and the output shaft of the motor 8 are keyed with gears, and the two gears are connected by a toothed belt 9. The motor drives the transmission roller to rotate through the toothed belt, and the transmission roller drives the abrasive belt to run.

[0021] The right end of the pad 2 is provided with a blanking plate 10 which is inclined from the upper left to the lower right. The leftmost side of the blanking plate is located below the baffle bar, and the rack material and the baffle bar will not touch the blanking plate when they are lowered. After the lower end surface of the insert nut is ground flat, the staff opens the baffle bar and pushes the insert nut out of the rack material to the opening. The insert nut falls to the blanking plate and rolls down to avoid contact between the insert nut and the abrasive belt.

[0022] The number of insert nuts supported by the frame member 5 is greater than or equal to 5 and less than or equal to 20. Preferably, the number of insert nuts supported by the frame member is 9.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A grinding device for insert nuts, characterized in that: The machine comprises a frame, a pad is horizontally arranged at the top of the frame, driving rollers driven by a motor are rotatably arranged on the left and right sides of the pad, a sanding belt raised by the pad is connected between the two driving rollers, a frame is arranged in the middle of the pad, a cylinder is arranged downward at the top of the frame, a frame piece with an open right end is horizontally connected to the end of the piston rod of the cylinder, the frame piece is used to raise a plurality of insert nuts and press them down to the sanding belt, and a baffle is twisted at the right end of the frame piece.

2. A grinding device for insert nuts according to claim 1, characterized in that: The frame material piece is composed of a connecting block on the left side connecting two symmetrical pressure strips in the front and back, a frame strip is transversely arranged on the inner side of the upper end of the pressure strip, and the middle of the pressure strip extends longitudinally outward to form a connecting plate.

3. A grinding device for insert nuts as claimed in claim 2, characterized in that: A guide rod passing through the frame is vertically arranged at the top end of the connecting plate, and an elastic member connecting the guide rod and the frame is arranged outside the guide rod.

4. A grinding device for insert nuts according to claim 1, characterized in that: One of the transmission rollers and the output shaft of the motor is keyed with a gear, and the two gears are connected by a toothed belt.

5. A grinding device for insert nuts according to claim 1, characterized in that: A blanking plate is arranged at the right end of the cushion block in an inclined manner from the upper left to the lower right.

6. A grinding device for insert nuts according to claim 1, characterized in that: The number of the insert nuts supported by the support member is greater than or equal to 5 and less than or equal to 20.

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