Die casting size detection tool

Abstract

The utility model discloses a die casting size detection frock, including the machine table, the machine table be provided with the detection gap in, the detection gap be provided with the front fixed base and rear fixed base, the front fixed base and rear fixed base be used for placing the die casting with longitudinal burr between, the detection gap still be provided with the sliding seat, the sliding seat be provided with the longitudinal movement mechanism in, the longitudinal movement mechanism be connected with the polishing head on, the sliding seat with linear movement mechanism meet, the sliding seat with machine table between be provided with the ranging element. Modification mould parting, change the die casting burr form foundation, utilize the sliding seat in this design and drive the polishing head contact the burr position of die casting and polish, need not carry out fine punching treatment before polishing, guarantee that the die casting size will not be influenced by fine punching procedure.

Description

Technical Field

[0001] This utility model relates to a testing fixture, specifically a die-casting part dimension testing fixture, belonging to the technical field of die-casting part processing equipment. Background Technology

[0002] With the development of the automotive industry, customers and suppliers have increasingly higher requirements for cost control. Many products require fewer CNC processes, and dimensional accuracy is difficult to guarantee after fine blanking and grinding due to residual material. However, for die-cast automotive parts formed by die forging, flash grooves in the mold inevitably form burrs or flash on the die-cast parts. In existing technology, due to the parting of the mold, the burrs formed on the die-cast parts are generally horizontal in shape. This type of burr is difficult to remove by grinding and must be removed by fine blanking combined with grinding. However, the precision blanking process can easily cause instability in product dimensions. Therefore, it is necessary to design a device that can remove burrs without relying on fine blanking, but only by grinding, and can detect the specific dimensions in real time during the grinding process. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a die-casting part size inspection fixture that provides accurate size inspection, precise auxiliary grinding, eliminates the need for fine blanking, and ensures the size of the die-casting parts.

[0004] The technical solution adopted by this utility model is as follows: a die-casting part size inspection fixture, including a machine base, wherein an inspection notch is provided in the machine base; a front fixed seat and a rear fixed seat are provided in the inspection notch; a die-casting part with a longitudinal burr is placed between the front fixed seat and the rear fixed seat; a sliding seat is also provided in the inspection notch; a longitudinal moving mechanism is provided in the sliding seat; a grinding head is connected to the longitudinal moving mechanism; the sliding seat is connected to a linear moving mechanism; and a distance measuring element is provided between the sliding seat and the machine base.

[0005] Furthermore, the front and rear fixed seats have semi-circular cross-sections; the front and rear fixed seats are respectively provided with support grooves; the sidewall of the detection notch has an inner cavity relative to the rear fixed seat; a cylinder is provided in the inner cavity; the support groove and the inner cavity are connected through a through hole; the piston of the cylinder passes through the through hole and abuts against one end of the die-cast part.

[0006] Furthermore, the sliding seat is located on one side of the front fixed seat and the rear fixed seat; the linear movement mechanism is disposed at the bottom of the sliding seat; the linear movement mechanism includes a rotating rod; a first motor is also disposed at the bottom of the sliding seat; a driven gear is disposed on the rotating rod; a driving gear is disposed on the first motor; the driven gear and the driving gear mesh.

[0007] Furthermore, drive gears are provided at both ends of the rotating rod; a rack is provided on the inner wall of the sliding seat; the drive gears are connected to the rack; and a guide rail is provided above the rack.

[0008] Furthermore, guide blocks are provided at both ends of the sliding seat; the guide blocks are slidably connected to the guide rail.

[0009] Furthermore, the longitudinal moving mechanism includes a lead screw disposed within a sliding seat; the lead screw is connected to a second motor; the lead screw is provided with a slider; the slider; a bracket is connected to the slider; the grinding head is connected within the bracket; a third motor is disposed at one end of the bracket; the grinding head is connected to the third motor.

[0010] Furthermore, the ranging element is a through-beam infrared ranging element located at the end of the guide block and the guide rail.

[0011] This invention offers the following advantages: By modifying the mold parting and altering the burr shape of the die-casting part, the sliding seat in this design drives the grinding head to contact the burr position of the die-casting part for grinding. This eliminates the need for pre-grinding, ensuring the die-casting part's dimensions are not affected by the pre-grinding process. Simultaneously, during grinding, as the burr is gradually removed, the grinding head moves laterally until the burr is completely removed and the grinding head is in contact with the workpiece surface. Since the die-casting part remains fixed, the grinding head undergoes lateral translation during burr removal until the burr is removed and the grinding head approaches the die-casting surface. This lateral movement distance reflects the die-casting part's dimensions. If the dimensions are too large, the grinding head's translation distance will be less than the standard distance; similarly, if the dimensions are too small, the translation distance will be greater than the standard distance. This translation distance is measured by a distance measuring element, directly indicating the die-casting part's dimensions during grinding, improving the accuracy of the grinding process and compensating for the impact of the pre-grinding process on workpiece dimensions. Attached Figure Description

[0012] Figure 1 This is a top-view structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the side structure of the front and rear fixed seats.

[0014] Figure 3 This is a schematic diagram of the structure of the slider when viewed from the front.

[0015] Figure 4 This is a schematic diagram of the sliding seat from a top view.

[0016] Wherein: 1 is the machine base, 2 is the detection notch, 3 is the front fixed seat, 4 is the rear fixed seat, 5 is the die casting part, 6 is the sliding seat, 7 is the grinding head, 8 is the inner cavity, 9 is the cylinder, 10 is the rotating rod, 11 is the first motor, 12 is the driven gear, 13 is the driving gear, 14 is the drive gear, 15 is the rack, 16 is the guide rail, 17 is the guide block, 18 is the lead screw, 19 is the slider, 20 is the bracket, 21 is the third motor, 22 is the second motor, and 23 is the drive gear. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] See Figures 1-4 This application discloses a die-casting part size inspection fixture, including a machine base 1, wherein an inspection notch 2 is provided in the machine base 1; a front fixed seat 3 and a rear fixed seat 4 are provided in the inspection notch 2; a die-casting part 5 with a longitudinal burr is placed between the front fixed seat 3 and the rear fixed seat 4; a sliding seat 6 is also provided in the inspection notch 2; a longitudinal moving mechanism is provided in the sliding seat 6; a grinding head 7 is connected to the longitudinal moving mechanism; the sliding seat 6 is connected to a linear moving mechanism; and a distance measuring element is provided between the sliding seat 6 and the machine base 1.

[0019] Furthermore, the front fixing seat 3 and the rear fixing seat 4 both have semi-circular cross sections; the front fixing seat 3 and the rear fixing seat 4 are respectively provided with support grooves; the side wall of the detection notch 2 is provided with an inner cavity 8 relative to the rear fixing seat 4; a cylinder 9 is provided in the inner cavity 8; the support groove and the inner cavity 8 are connected through a through hole; the piston of the cylinder 9 passes through the through hole and abuts against one end of the die-cast part 5.

[0020] Specifically, in this embodiment, the front fixed seat 3 and the rear fixed seat 4 support the die-cast part 5 from both the front and rear ends; the front and rear ends of the die-cast part 5 are placed in the support groove; at the same time, the cylinder 9 controls its piston movement, passes through the through hole and enters the support groove, and applies a horizontal force to the die-cast part 5, so that the die-cast part can be limited.

[0021] Furthermore, the sliding seat 6 is located on one side of the front fixed seat 3 and the rear fixed seat 4; the linear movement mechanism is disposed at the bottom of the sliding seat 6; the linear movement mechanism includes a rotating rod 10; a first motor 11 is also disposed at the bottom of the sliding seat 6; a driven gear 12 is disposed on the rotating rod 10; a driving gear 13 is disposed on the first motor 11; the driven gear 12 and the driving gear 13 mesh.

[0022] Furthermore, the rotating rod 10 is provided with drive gears 23 at both ends; the inner wall of the sliding seat 6 is provided with a rack 15; the drive gears 23 are connected to the rack 15; and a guide rail 16 is provided above the rack 15.

[0023] Furthermore, guide blocks 17 are provided at both ends of the sliding seat 6; the guide blocks 17 are slidably connected to the guide rail 16.

[0024] Specifically, since the bottom of the sliding seat 6 is provided with a rotating rod 10 connected to the first motor 11, the first motor 11 drives the rotation of the driving gear 13, which in turn drives the rotation of the driven gear 12, ultimately causing the rotating rod 10 to rotate. Since the two ends of the rotating rod 10 are provided with driving gears 23, they can generate driving force with the rack 15, ultimately driving the sliding seat 6 to move horizontally.

[0025] Because the burrs form protrusions on the die-cast part, the horizontal position of the grinding head 7 is different before and after grinding. That is, when grinding begins, the grinding head reaches the edge of the burrs at the sliding seat 6. As the grinding head 7 continues to work, the burrs will shrink until they are completely eliminated. At this point, the grinding head 7, driven by the sliding seat 6, will also reach the edge of the die-cast part (the burrs are eliminated, reaching the outer contour of the die-cast part). Since the die-cast part 5 remains fixed, the horizontal movement distance of the sliding seat 6 reflects the size of the outer contour of the die-cast part 5. If the horizontal movement distance of the sliding seat 6 driving the grinding head 7 during the burr elimination process is less than the set value, it indicates that the die-cast part is too large; similarly, if the horizontal movement distance of the sliding seat 6 driving the grinding head 7 during the burr elimination process is greater than the set value, it indicates that the die-cast part is too small.

[0026] Furthermore, the longitudinal moving mechanism includes a lead screw 18 disposed within the sliding seat 6; the lead screw 18 is connected to the second motor 22; the lead screw 18 is provided with a slider 19; the slider 19; a bracket 20 is connected to the slider 19; the grinding head 7 is connected within the bracket 20; a third motor 21 is disposed at one end of the bracket; the grinding head 7 is connected to the third motor 21.

[0027] Furthermore, the ranging element is a through-beam infrared ranging element located at the end of the guide block 17 and the guide rail 16.

[0028] Specifically, the burrs on the die-cast parts will form a certain length. The grinding head 7 cannot completely eliminate the burrs in a single operation, so it needs to be repeated multiple times. Each time, the longitudinal position of the grinding head needs to be changed through the longitudinal movement mechanism.

[0029] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A fixture for inspecting the dimensions of die-cast parts, comprising a machine base (1), characterized in that: The machine base (1) is provided with a detection notch (2); the detection notch (2) is provided with a front fixed seat (3) and a rear fixed seat (4); a die-cast part (5) with a longitudinal burr is placed between the front fixed seat (3) and the rear fixed seat (4); a sliding seat (6) is also provided in the detection notch (2); a longitudinal moving mechanism is provided in the sliding seat (6); a grinding head (7) is connected to the longitudinal moving mechanism; the sliding seat (6) is connected to the linear moving mechanism; a distance measuring element is provided between the sliding seat (6) and the machine base (1).

2. The die-casting part dimensional inspection fixture according to claim 1, characterized in that: The front fixing seat (3) and the rear fixing seat (4) are both semi-circular in cross-section; the front fixing seat (3) and the rear fixing seat (4) are respectively provided with support grooves; the side wall of the detection notch (2) is provided with an inner cavity (8) relative to the rear fixing seat (4); a cylinder (9) is provided in the inner cavity (8); the support groove and the inner cavity (8) are connected through a through hole; the piston of the cylinder (9) passes through the through hole and abuts against one end of the die casting (5).

3. The die-casting part dimensional inspection fixture according to claim 1, characterized in that: The sliding seat (6) is located on one side of the front fixed seat (3) and the rear fixed seat (4); the linear moving mechanism is set at the bottom of the sliding seat (6); the linear moving mechanism includes a rotating rod (10); a first motor (11) is also set at the bottom of the sliding seat (6); a driven gear (12) is set on the rotating rod (10); a driving gear (13) is set on the first motor (11); the driven gear (12) and the driving gear (13) mesh.

4. The die-casting part dimensional inspection fixture according to claim 3, characterized in that: The rotating rod (10) is provided with drive gears (14) at both ends; the inner wall of the sliding seat (6) is provided with a rack (15); the drive gear (14) is connected to the rack (15); and a guide rail (16) is provided above the rack (15).

5. The die-casting part dimensional inspection fixture according to claim 4, characterized in that: The sliding seat (6) is provided with guide blocks (17) at both ends; the guide blocks (17) are slidably connected to the guide rail (16).

6. The die-casting part dimensional inspection fixture according to claim 5, characterized in that: The longitudinal moving mechanism includes a lead screw (18) disposed in a sliding seat (6); the lead screw (18) is connected to a second motor (18); the lead screw (18) is provided with a slider (19); the slider (19); a bracket (20) is connected to the slider (19); the grinding head (7) is connected to the bracket (20); a third motor (21) is disposed at one end of the bracket; the grinding head (7) is connected to the third motor (21).

7. The die-casting part dimensional inspection fixture according to claim 6, characterized in that: The ranging element is a through-beam infrared ranging element located at the end of the guide block (17) and the guide rail (16).

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