Deburring equipment for precision parts

Abstract

The invention discloses deburring equipment for precision parts, and relates to the field of machinery, in particular to the deburring equipment technology for the precision parts, an idle wheel and a cutter block are positioned on a cutter bar at the same time, the elastic strength of a spring B is adjusted through a nut, it is guaranteed that the precision parts cannot be overcut in the cutting process, and the peripheral size and tolerance requirements of the precision parts are met. Through the cutting mode and the cooperative use of the dust collection device and the scrap baffle, dust pollution caused by an existing polishing and deburring technology is prevented, it is guaranteed that cutting scraps are not splashed and discharged in time, the cleanliness requirement of precision parts is met, the error rate and the rejection rate of manual operation are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of machinery, and in particular to a precision parts deburring equipment technology, and specifically to a precision circular and nearly circular precision parts deburring equipment with strict dimensional tolerances. Background Art

[0002] Plastic products are increasingly widely used in production and life. More plastic products have replaced metal parts to become core components in the fields of automobiles and mechanical equipment. Some injection molded products will produce some burrs during injection molding due to mold structure and injection molding process. In order to meet the use requirements, it is necessary to remove the burrs on the functional surface. There are many shortcomings in the existing methods for removing burrs from parts. Manual or simple mechanical tool jigs are generally used to achieve cutting and grinding to remove burrs. Manual burr removal will have large errors. In order to remove burrs in a simple mechanical tool jig, springs, high-pressure water, brushes and other mechanisms are often used. The above mechanisms are often difficult to accurately control the cutting depth and product cleanliness, and overcutting is prone to occur, which in turn affects the quality and precision of the product. Summary of the invention

[0003] The purpose of the present invention is to provide a precision parts deburring device, which can achieve precise cutting and prevent overcutting through the combined use of components such as an idler wheel, a pressure head assembly, a rotation positioning assembly, a floating tool rod and a dust suction device.

[0004] The technical problem to be solved by the present invention is to provide a precision parts deburring device, which solves the problem of accurate deburring of circular and nearly circular precision parts.

[0005] The technical solution of the present invention is: a precision parts deburring equipment, the structure of which includes: a connecting column 1-1, a bearing fixing seat 1-2, a rotating rod 1-3, a resin pad 1-4, a retaining spring 1-5, an upper bearing 1-6, a precision part 2, a rotating positioning chassis 3-1, a floating pin 3-2, a spring A3-3, a stopper 3-4, a top screw 3-5, a lower bearing 3-6, an idler wheel 4, a knife block 5, a chip baffle 6, a knife bar 7, a knife bar sliding block 8, a knife bar slide rail 9, a spring B10, a limit block 11, a limit bolt 12, a fixture base 13, and a dust suction device 14; its connection relationship is: the connecting column 1-1 and the bearing fixing seat 1-2 are in surface contact and fixed by threaded locking, and the bearing fixing seat 1-2 and the rotating The rod 1-3 is in surface contact, the rotating rod 1-3 and the resin pad 1-4 are fixed by threaded locking, the retaining spring 1-5 is in surface contact with the rotating rod 1-3 and fits tightly, the retaining spring 1-5 is in surface contact with the bearing fixing seat 1-2 and limits the position, the upper bearing 1-6 is in surface contact with the bearing fixing seat 1-2 and fits tightly, the upper bearing 1-6 is in surface contact with the rotating rod 1-3 and fits tightly; the rotating positioning chassis 3-1 is in surface contact with the fixture base 13 and is connected and fixed by threads, the floating pin 3-2 is in surface contact with the spring A3-3, the spring A3-3 is in surface contact with the rotating positioning chassis 3-1 with clearance fit, the floating pin 3-2 is in surface contact with the block 3-4 and slides, the block 3-4 is in surface contact with the top wire 3-5 and fits tightly, the top The thread 3-5 is connected with the rotating positioning chassis 3-1 by surface contact threading, the lower bearing 3-6 is closely matched with the rotating positioning chassis 3-1 by surface contact, and the lower bearing 3-6 is closely matched with the fixture base 13 by surface contact; the precision part 2 is in surface contact with the resin pad 1-4, the precision part 2 is in surface contact with the rotating positioning chassis 3-1, and the precision part 2 is in surface contact with the floating pin 3-2 and positioned; the knife block 5 is in surface contact with the knife rod 7 and is locked and fixed by bolts, a screw is provided on the idler wheel 4, the idler wheel 4 is threadedly connected with the knife rod 7, a nut is provided between the idler wheel 4 and the knife rod 7, an upper through groove and a lower dovetail groove are provided on the knife rod sliding block 8, the knife rod 7 is in surface contact with the upper through groove provided on the knife rod sliding block 8 and is locked and fixed by bolts, and the knife rod slide rail 9 A dovetail boss is arranged on the top, the lower dovetail groove arranged on the tool rod sliding block 8 is in surface contact and sliding cooperation with the dovetail boss arranged on the tool rod slide rail 9, the tool rod slide rail 9 is in surface contact and fixed by bolts, the limit block 11 is in surface contact and fixed by bolts, the limit bolt 12 is in surface contact and sliding cooperation with the limit block 11, the limit bolt 12 is threadedly connected with the tool rod 7, a nut is arranged between the limit bolt 12 and the tool rod 7, the spring B10 realizes the limit adjustment function by the nut, the spring B10 is in surface contact with the limit block 11, the chip baffle 6 is in surface contact and fixed by bolts, the dust collection device 14 is in surface contact and fixed by bolts, so as to realize chip collection.

[0006] The retaining spring 1-5 is an open annular metal sheet, and an annular inner groove is provided on the rotating rod 1-3. The retaining spring 1-5 is in surface contact with the annular inner groove provided on the rotating rod 1-3 and fits tightly. The rotating rod 1-3, the resin pad 1-4, and the upper bearing 1-6 are limited as a whole by the retaining spring 1-5.

[0007] The connecting column 1-1, the bearing fixing seat 1-2, the rotating rod 1-3, the resin pad 1-4, the retaining spring 1-5 and the upper bearing 1-6 together constitute a clamping assembly; the rotating positioning chassis 3-1, the floating pin 3-2, the spring A3-3, the stopper 3-4, the top screw 3-5 and the lower bearing 3-6 constitute a chassis assembly; the clamping assembly and the chassis assembly position the precision part 2 through the action of the cylinder, and the floating pin 3-2 positions the precision part 2 to prevent rotation. The clamping assembly and the chassis assembly rotate synchronously driven by the servo motor.

[0008] The idler wheel 4, the knife block 5, the chip baffle 6, the tool rod 7, the tool rod sliding block 8, the tool rod slide rail 9, the spring B10, the limit block 11, and the limit bolt 12 constitute a cutting assembly. The knife block 5 and the idler wheel 4 are fixed on the tool rod 7 at the same time. The idler wheel 4 contacts the surface of the precision part 2, and the knife block 5 performs cutting synchronously to prevent overcutting and realize conformal processing during the deburring equipment processing process.

[0009] The working principle of a precision parts deburring device is as follows: the precision part 2 is placed in the rotating positioning chassis 3 by a robot, the clamping assembly presses the precision part 2 on the rotating positioning chassis 3, and is driven to rotate by a servo motor. The knife bar 7 is provided with pressure by the spring B10 to float, driving the knife block 5 and the idler wheel 4 to fit tightly on the circumference of the precision part 2 to cut burrs. The idler wheel 4 generates thrust on the precision part 2 to prevent overcutting during the cutting process.

[0010] The beneficial effects of the present invention are as follows: through the application of a precision parts deburring device, the idler wheel and the cutter block are positioned on the cutter rod at the same time, and the elastic strength of the spring B is adjusted by the nut, so that the precision parts are not overcut during the cutting process, and the peripheral dimensions and tolerance requirements of the precision parts are guaranteed. Through the cutting method and the coordinated use of the dust suction device and the chip baffle, dust pollution caused by the existing grinding and deburring technology is prevented, and the cutting debris is ensured to be discharged in time without splashing, thereby ensuring the cleanliness requirements of the precision parts, improving the qualification rate, reducing the error rate and scrap rate of manual operation, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the assembly of a precision parts deburring device. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the assembly of a precision parts deburring device. Figure 2 .

[0014] Figure 3 This is a schematic diagram of the assembly of a precision parts deburring device. Figure 3 .

[0015] Figure 4 A schematic diagram of the cutting components in a precision parts deburring device Figure 4 .

[0016] Figure 5 A schematic diagram of the cutting components in a precision parts deburring device Figure 5 .

[0017] Figure 6 A schematic diagram of the cutting components in a precision parts deburring device Figure 6 .

[0018] Figure 7 This is a schematic diagram of the clamping assembly and chassis assembly in a precision parts deburring device. Figure 7 .

[0019] Figure 8 It is a schematic diagram of the clamping component in the precision parts deburring equipment Figure 8 .

[0020] Fig. 9 This is a schematic diagram of the chassis component in a precision parts deburring device. Figure 9 .

[0021] In the figure: 1-1 connecting column; 1-2 bearing fixing seat; 1-3 rotating rod; 1-4 resin pad; 1-5 retaining spring; 1-6 upper bearing; 2 precision parts; 3-1 rotating positioning chassis; 3-2 floating pin; 3-3 spring A; 3-4 stopper; 3-5 top screw; 3-6 lower bearing; 4 idler wheel; 5 knife block; 6 chip baffle; 7 knife bar; 8 knife bar sliding block; 9 knife bar slide rail; 10 spring B; 11 limit block; 12 limit bolt; 13 fixture base; 14 dust suction device. DETAILED DESCRIPTION

[0022] The specific embodiments of the invention are described in detail below with reference to technical texts and drawings.

[0023] The assembly process of a precision parts deburring equipment is as follows: a floating pin 3-2, a spring A3-3, a stopper 3-4, and a top screw 3-5 are installed in a cavity processed by a 3-1 rotating positioning chassis 3-1, and the rotating positioning chassis 3-1 is fixed on a fixture base 13 through a lower bearing 3-6. A connecting column 1-1, a bearing fixing seat 1-2, a rotating rod 1-3, a resin pad 1-4, a retaining spring 1-5, and an upper bearing 1-6 are assembled into a clamping assembly, which is connected to a cylinder as a whole. A precision part 2 is placed on the rotating positioning chassis 3-1 and positioned by the floating pin 3-2 and the cavity processed by the rotating positioning chassis 3-1. The precision part 2 is fixed by applying pressure by the clamping assembly (see Figure 7 , 8 , 9), the bolt passes through the knife block 5 to lock it with the knife bar 7, the bolt of the idler wheel 4 is screwed on the knife bar 7 and locked by the nut and the height is adjusted, the bolt passes through the knife bar 7 and is locked with the knife bar sliding block 8, the bolt passes through the knife bar slide rail 9 and is locked with the fixture base 13, the knife bar slide block 8 and the knife bar slide rail 9 are connected and slidably matched through the dovetail groove (see Figure 4 , 5 , 6), the bolt passes through the limit block 11 and is locked and fixed with the fixture base 13, the limit bolt 12 passes through the limit block 11 and the spring B10 and is locked and limited by the nut, the bolt passes through the chip baffle 6 and is locked and fixed with the fixture base 13, the bolt passes through the dust suction device 14 and is locked and fixed with the fixture base 13 (see Figure 1 , 2 , 3).

[0024] The implementation process of a precision parts deburring device is as follows: the manipulator places the precision part 2 in the rotating positioning chassis 3-1, the clamping assembly moves downward and clamps, the servo motor drives the rotating positioning chassis 3-1 to rotate, and the knife block 5, the idler wheel 4 and the knife rod 7 make the blade fit the circumference of the precision part 2 under the pressure of the spring B10. The idler wheel 4 contacts the circumference of the precision part 2 and starts to rotate. As the product rotates, the blade 5 begins to cut the burrs on the circumference of the precision part 2, and the idler wheel 4 fits the surface shape of the precision part 2 in real time to prevent overcutting and achieve conformal processing. The initial position of the knife rod 7 and the pressure of the spring B10 can be fine-tuned by the limit screw 12 according to the specific situation of the precision part 2 and the processing requirements to achieve the best processing effect.

[0025] A precision parts deburring equipment is used to process round plastic products, which can ensure the outer circle tolerance within 0.05mm, the concentricity within 0.1mm, and the cleanliness requirements: IS0 16232 equivalent code S3, non-metallic particles CCC=A(E9 / F8 / G7 / H6 / I5 / J00); metal particles CCC=A(E8 / F7 / G6 / H5 / I4 / J00).

[0026] Furthermore, a floating tool bar mechanism with an idler wheel 4 for removing circumferential burrs of precision parts deburring equipment, especially the idler wheel 4 part, can prevent overcutting and achieve conformal processing during the deburring equipment processing through its unique structural design and working principle, and is widely used in various mechanical processing fields that require circumferential burr removal of circular and near-circular products.

[0027] The above is a superior implementation mode of the present invention. It should be pointed out that for technicians in the technical field to which the present invention belongs, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A precision parts deburring device, characterized in that Its structure includes: a connecting column (1-1), a bearing fixing seat (1-2), a rotating rod (1-3), a resin pad (1-4), a retaining spring (1-5), an upper bearing (1-6), a precision part (2), a rotating positioning chassis (3-1), a floating pin (3-2), a spring A (3-3), a stopper (3-4), a top screw (3-5), a lower bearing (3-6), an idler wheel (4), a knife block (5), a chip baffle (6), a knife bar (7), a knife bar sliding block (8), a knife bar sliding rail (9), a spring B (10), a limit block (11), a limit bolt (12), a fixture base (13), and a dust collecting device (14); its connection relationship is: the connecting column (1-1) and the bearing fixing seat ( The bearing fixing seat (1-2) is fixed by thread locking, the bearing fixing seat (1-2) is fixed by thread locking, the rotating rod (1-3) is fixed by thread locking, the rotating rod (1-3) is fixed by thread locking, the retaining spring (1-5 ... upper bearing (1-6) is fixed by thread locking, the upper bearing (1-6) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the upper bearing (1-6) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the upper bearing (1-6) is fixed by thread locking, the floating pin (3-2) is fixed by thread locking, the retaining spring (1-2) is fixed by thread locking, the retaining spring (1-2) is fixed by thread locking, the retaining spring (1-2) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-5) is fixed by thread locking, the retaining spring (1-6) is fixed by thread (3-4) surface contact sliding fit, the stopper (3-4) and the top screw (3-5) surface contact tightly fit, the top screw (3-5) and the rotary positioning chassis (3-1) surface contact thread connection; the precision part (2) and the resin pad (1-4) surface contact, the precision part (2) and the rotary positioning chassis (3-1) surface contact, the precision part (2) and the floating pin (3-2) surface contact and positioning; the knife block (5) and the knife rod (7) surface contact and fixed by bolt locking, the idler wheel (4) is provided with a screw rod, the idler wheel (4) and the knife rod (7) are threadedly connected, a nut is provided between the idler wheel (4) and the knife rod (7), an upper through groove and a lower dovetail groove are provided on the knife rod sliding block (8), the knife rod (7) and the knife rod sliding block (8) are connected. ) is fixed by bolts in surface contact with an upper through groove provided on the tool bar slide rail (9), a dovetail boss is provided on the tool bar slide rail (9), a lower dovetail groove provided on the tool bar slide block (8) is in surface contact and sliding cooperation with a dovetail boss provided on the tool bar slide rail (9), a limit bolt (12) is in surface contact and sliding cooperation with a limit block (11), the limit bolt (12) is threadedly connected to the tool bar (7), a nut is provided between the limit bolt (12) and the tool bar (7), a spring B (10) is limited by a nut, the spring B (10) is in surface contact with the limit block (11), a chip baffle (6) is in surface contact with a fixture base (13) and is fixed by bolts in surface contact, and a dust collecting device (14) is in surface contact with a fixture base (13) and is fixed by bolts in surface contact.

2. A precision parts deburring device according to claim 1, characterized in that: The retaining spring (1-5) is an open annular metal sheet. The rotating rod (1-3) is provided with an annular inner groove. The retaining spring (1-5) is in surface contact with the annular inner groove provided on the rotating rod (1-3) and is tightly matched. The rotating rod (1-3), the resin pad (1-4) and the upper bearing (1-6) are limited as a whole by the retaining spring (1-5).

3. The precision parts deburring equipment according to claim 1, characterized in that: The connecting column (1-1), the bearing fixing seat (1-2), the rotating rod (1-3), the resin pad (1-4), the retaining spring (1-5) and the upper bearing (1-6) together constitute a clamping assembly; the rotating positioning chassis (3-1), the floating pin (3-2), the spring A (3-3), the stopper (3-4), the top screw (3-5) and the lower bearing (3-6) constitute a chassis assembly; the clamping assembly and the chassis assembly position the precision part (2) through the action of the cylinder, and the floating pin (3-2) positions the precision part (2) to prevent rotation. The clamping assembly and the chassis assembly rotate synchronously under the drive of the servo motor.

4. The precision parts deburring equipment according to claim 1, characterized in that: The idler wheel (4), the knife block (5), the chip baffle (6), the knife bar (7), the knife bar sliding block (8), the knife bar slide rail (9), the spring B (10), the limit block (11), and the limit bolt (12) constitute a cutting assembly; the knife block (5) and the idler wheel (4) are fixed on the knife bar (7) at the same time, the idler wheel (4) is in surface contact with the precision part (2), and the knife block (5) performs cutting synchronously.

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