A device for quick change of production jigs for automotive parts manufacturing

Abstract

This invention provides a device for rapid changeover of manufacturing fixtures for automotive parts. The upper end of the base has a hole, and a protruding strip is vertically and movably nested within the hole. The diameter of the hole is twice the diameter of the protruding strip. A base plate is vertically nested with the base via the protruding strip. Automotive parts are placed on the sides of the base plate. The changeover mechanism includes a base, a rotating component, and a clamp. The base is located on both sides of the base, the rotating component rotates at the upper end of the base, and the clamp is located at the upper end of the rotating component. This invention solves the cumbersome process of adjusting tooling fixtures during changeover of automotive parts processing, significantly reducing changeover time and enabling rapid changeover. The fixture allows for quick changeover of multiple products, improving equipment adaptability, reducing employee workload, and the pneumatic clamping makes product quality more stable. It also significantly reduces the investment and development time for developing new products in the same series, and greatly improves quality stability and increases shift output.

Description

Technical Field

[0001] This invention relates to the field of brazing or desoldering technology, and in particular to a device for quick line change of automotive parts production fixtures. Background Technology

[0002] Automotive parts refer to the various units that make up the whole of automotive parts processing and the products that serve automotive parts processing. During the production of automotive parts, they need to be fixed by jigs. The jigs are mainly used as tools to assist in controlling position or movement. Technical inspiration for jigs.

[0003] The study of metallurgical tools revealed the following problems:

[0004] Currently, automotive parts processing uses specialized fixtures, which are not universal. In particular, when changing products, the entire fixture needs to be dismantled, which is time-consuming and laborious, making line changes difficult. New product development also requires significant investment and targeted design for the products. As a result, automotive parts processing requires long periods of fixture dismantling, making it impossible to quickly change lines according to the automotive parts model using existing fixtures.

[0005] Currently, the prior art CN201910469940.8 discloses a rotating and adjustable automotive welding fixture, which provides the welding fixture with the function of adjusting the working height by setting a telescopic bracket and a lifting bolt. The dual adjustment setting can facilitate fine-tuning of the working height during welding. The telescopic bracket can stabilize and fix the position of the welding fixture, and the lifting bolt can fine-tune the specific height, which is convenient for controlling the welding positions of different components to approach each other, which is beneficial to welding.

[0006] This invention primarily solves the problem of the inability to quickly change production lines for automotive parts based on their model specifications. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention provides a device for quick changeover of automotive parts production fixtures, thereby addressing the problems described in the background section.

[0008] The purpose and effect of the present invention, a device for quick line change of automotive parts production fixture, are achieved by the following specific technical means: A device for quick line change of automotive parts production fixture includes a fixture, a base is installed on the upper end of the fixture, a base plate is slidably nested on the upper end of the base, a protruding strip is provided on the lower end of the base plate, and a line change mechanism is provided on the side of the fixture near the base.

[0009] Furthermore, the fixture is a fixture used in the production of automotive parts.

[0010] Furthermore, the upper end of the base has a hole, and the protrusion is vertically and movably nested with the hole. The diameter of the hole is twice the diameter of the protrusion. The base plate is vertically nested with the base through the protrusion, and automotive parts are placed on the side of the base plate.

[0011] Furthermore, the line-changing mechanism includes a base, a rotating component, and a clamp. The base is located on both sides of the base, the rotating component rotates at the upper end of the base, and the clamp is located at the upper end of the rotating component.

[0012] Furthermore, the rotating component is slidably nested at the upper end of the base, and the base, rotating component, and clamp are combined to form a pneumatic clamp. The end of the rotating component near the base is provided with a pneumatic cylinder, piston, piston rod, cylinder body, and spring.

[0013] Furthermore, the lower end of the clamp is perpendicularly attached to the upper end of the base plate, and the clamps are arranged horizontally.

[0014] Furthermore, the base has a ring inside the hole, and a rotating ball rotates inside the ring. The two ends of the rotating ball are connected by a connecting rod and a push rod.

[0015] Furthermore, the ring is located at the lower end inside the base, and there are 4 rotating spheres evenly distributed on the inner side of the ring. The diameter of the ring is 2-4 cm larger than the diameter of the convex strip.

[0016] Furthermore, the connecting rod is located at the upper end of the inner side of the ring, and the connecting rod is in the shape of a semi-circular arc with a semi-circular arc angle of 45-60°. After the protrusion is embedded in the interior of the base, the protrusion first presses against the side wall of the connecting rod.

[0017] Furthermore, the end of the push rod away from the rotating ball extends to the outside of the ring, and the push rod is semi-circular with an angle of 120-180°. The push rod is linked to the connecting rod through the rotating ball.

[0018] Furthermore, deformable rods are embedded on both sides inside the holes of the base, and sliders slide at the lower ends of the deformable rods.

[0019] Furthermore, the inner wall of the hole in the base is provided with a sliding groove, which is arranged vertically. The slider slides vertically inside the sliding groove. When the protrusion is not embedded in the hole of the base, the slider is located at the lower end inside the sliding groove. The deformation rod is made of rubber.

[0020] Furthermore, the lower end of the slider is perpendicular to the end of the push rod that is away from the rotating ball.

[0021] Beneficial effects:

[0022] 1. Select different base plates according to the model of the automotive parts. Manually connect the base plates to the base in a vertical nesting manner through the convex strips. At this time, the base plates can limit the automotive parts. The optimized process of the fixture is to remove the base plate, replace the processing product base plate, and mass-produce the product. Compared with the existing process, which requires removing all tooling, replacing the processing product tooling, calibrating the tooling fixture, adjusting the program, setting the tool at the sub-center, and mass-producing the product, the process is simplified. Only the base plate needs to be replaced to start production directly, eliminating the steps of calibrating the tooling fixture, adjusting the program, and setting the tool at the sub-center. This avoids the problem that the existing special tooling fixtures for automotive parts are not universal and require complete removal and replacement when changing production lines.

[0023] 2. After the base plate is placed on the upper end of the base, the rotating part is equipped with a pneumatic cylinder, piston, piston rod, cylinder body and spring at the end near the base. The clamping device uses compressed air as power through the pneumatic cylinder, piston, piston rod, cylinder body and spring. The compressed air passes through the circuit to make the rotating part move vertically and linearly, so that the rotating part can drive the fixture to adjust the height. The fixture can be adjusted according to the height of the base plate. By manually rotating the fixture 180° through the rotating part, the lower end of the fixture is perpendicular to the upper end of the base plate. The fixture can limit the base plate, which solves the cumbersome process of debugging tooling fixtures when changing lines for processing automotive parts products, greatly reduces the changeover time, realizes rapid changeover, and allows the fixture to quickly change multiple products, improves the adaptability of equipment, reduces the labor intensity of employees, and the pneumatic clamping makes the product quality more stable. It also greatly reduces the investment and development time of developing new products in the same series, and greatly improves the stability of quality and increases shift output.

[0024] 3. After the protrusion is embedded in the base, the protrusion first presses against the side wall of the connecting rod. At this time, the connecting rod at the upper end of the ring can clamp and limit the outer side wall at the lower end of the protrusion. The push rod is in a semi-circular arc shape with a semi-circular arc angle of 120-180°. Therefore, when the connecting rod swings through the rotating ball, the end of the push rod away from the rotating ball can swing upward.

[0025] 4. Since one end of the push rod swings upward, and the lower end of the slider is perpendicular to the end of the push rod away from the rotating ball, the push rod can drive the slider to slide upward. The inner wall of the hole in the base is provided with a groove, which is arranged vertically. The arrangement of the groove can limit the sliding direction of the slider. At this time, the slider slides upward inside the groove, causing the deformation rod to deform as a whole.

[0026] 5. The spacing between the deformation rods on the inner wall of the base is shortened, and the deformation rods can limit the outer side of the protrusions. This allows the base to quickly clamp and limit the protrusions according to their different diameters when different models of base plates and protrusions are connected to the base, thereby increasing the stability of the base and base plate after connection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the side structure of the tooling of the present invention.

[0029] Figure 3 This is a partial structural diagram of the tooling of the present invention.

[0030] Figure 4 This is a schematic diagram of the base structure of the present invention.

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the base of the present invention.

[0032] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0033] Figure 7 This is a schematic diagram of the ring structure of the present invention.

[0034] Figure 8 This is a top view of the circular ring structure of the present invention.

[0035] Figure 9 This is a schematic diagram of the deformation of the deformable rod of the present invention.

[0036] Figure 1-9 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0037] 1-Jig, 101-Base, 102-Base plate, 103-Protruding strip, 2-Base, 201-Rotating part, 202-Clamp, 3-Ring, 301-Rotating ball, 302-Connecting rod, 303-Push rod, 4-Deformation rod, 401-Slider. Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0039] As attached Figure 1 To be continued Figure 9 As shown:

[0040] Example 1: A device for quick line change of an automotive parts production fixture, including a fixture 1, a base 101 mounted on the upper end of the fixture 1, a base plate 102 slidably nested connected to the upper end of the base 101, a protrusion 103 provided at the lower end of the base plate 102, and a line change mechanism provided on the side of the fixture 1 near the base 101.

[0041] Among them: Fixture 1, Fixture 1 is a fixture used for the production of automotive parts;

[0042] The base 101 and the base plate 102 are provided. The upper end of the base 101 has a hole. The protrusion 103 is vertically and movably nested with the hole. The diameter of the hole is twice the diameter of the protrusion 103. The base plate 102 is vertically nested with the base 101 through the protrusion 103. Automotive parts are placed on the side of the base plate 102.

[0043] Automotive parts are placed on the side of the base plate 102, which facilitates the limiting of the automotive parts through the base plate 102, thereby facilitating the welding process of the automotive parts.

[0044] The upper end of the fixture 1 is fitted with multiple base plates 102 of different models, and the base plates 102 are replaced according to different models of automotive parts;

[0045] Specifically: Select different models of base plates 102 according to the model of the automotive parts, and manually connect the base plates 102 to the base 101 in a vertical nesting manner through the protrusions 103. At this time, the base plates 102 can limit the automotive parts. The optimized process of the fixture 1 is to remove the base plates 102, replace the processing product base plates 102 and mass-produce. Compared with the existing process, which requires removing all tooling, replacing the processing product tooling, correcting the tooling fixtures, adjusting the program, setting the tool at the sub-center and mass-producing, the process is simplified. Only the base plates 102 need to be replaced to start production directly, eliminating the steps of correcting the tooling fixtures, adjusting the program and setting the tool at the sub-center. This avoids the fact that the existing special tooling fixtures for automotive parts are not universal and all need to be removed and replaced when changing production lines.

[0046] Example 2: Refer to the attached instruction manual Figure 1-4 It can be seen that the difference between Embodiment 2 and Embodiment 1 is that the line changing mechanism includes a base 2, a rotating member 201 and a clamp 202. The base 2 is located on both sides of the base 101, the rotating member 201 rotates at the upper end of the base 2, and the clamp 202 is located at the upper end of the rotating member 201.

[0047] Wherein: base 2 and rotating part 201, rotating part 201 is slidably nested in the upper end of base 2, base 2, rotating part 201 and clamp 202 are combined to form a pneumatic clamp, and the end of rotating part 201 near base 2 is provided with a pneumatic cylinder, piston, piston rod, cylinder body and spring;

[0048] The rotating part 201 is provided with a pneumatic cylinder, piston, piston rod, cylinder body and spring at one end near the base 2. The pneumatic cylinder, piston, piston rod, cylinder body and spring are used to form a clamping device powered by compressed air. The compressed air passes through the circuit to make the rotating part 201 move vertically in a straight line, so that the rotating part 201 can slide and nest vertically at the upper end of the base 2.

[0049] Pneumatics provides a source of "power" from air.

[0050] The clamp 202 has its lower end perpendicularly attached to the upper end of the base plate 102, and the clamps 202 are arranged horizontally.

[0051] Wherein: After the base plate 102 is placed on the upper end of the base 101, the rotating part 201 is equipped with a pneumatic cylinder, piston, piston rod, cylinder body and spring at the end near the base 2. The clamping device uses compressed air as power through the pneumatic cylinder, piston, piston rod, cylinder body and spring. The compressed air passes through the circuit, causing the rotating part 201 to move vertically and linearly, so that the rotating part 201 can drive the clamp 202 to adjust its height. The clamp 202 can be adjusted according to the height of the base plate 102. The clamp 202 can be manually rotated 180° by the rotating part 201. At this time, the lower end of the fixture 202 is perpendicularly attached to the upper end of the base plate 102. The fixture 202 can limit the base plate 102, which solves the cumbersome process of debugging tooling fixtures when changing lines for processing automotive parts products, greatly reduces the changeover time, and realizes rapid changeover. Fixture 1 can quickly change multiple products, improve the adaptability of equipment, reduce the labor intensity of employees, and make product quality more stable. It also greatly reduces the investment and development time of new products in the same series in the later stage, and greatly improves the stability of quality and increases shift output.

[0052] Example 3: Refer to the attached instruction manual Figure 4-8 It can be seen that the difference between Embodiment 3 and Embodiments 1 and 2 is that the hole in the base 101 is provided with a ring 3, a rotating ball 301 is rotated on the inner side of the ring 3, and the two ends of the rotating ball 301 are connected by a connecting rod 302 and a push rod 303.

[0053] Among them: the ring 3 is located at the lower end inside the base 101, and there are 4 rotating spheres 301. The rotating spheres 301 are evenly distributed on the inner side of the ring 3, and the diameter of the ring 3 is 2-4 cm larger than the diameter of the protrusion 103.

[0054] The diameter of the lower protrusion 103 of the base plate 102 varies depending on the model, while the diameter of the ring 3 is 2-4 cm larger than the diameter of the protrusion 103 of the larger models.

[0055] Link 302 is located at the upper end of the inner side of the ring 3. Link 302 is semi-circular and the semi-circular angle is 45-60°. After the protrusion 103 is embedded in the interior of the base 101, the protrusion 103 first presses against the side wall of the link 302.

[0056] After the protrusion 103 is embedded in the interior of the base 101, the protrusion 103 first presses against the side wall of the connecting rod 302. At this time, the connecting rod 302 at the upper end of the ring 3 can clamp and limit the outer side wall at the lower end of the protrusion 103.

[0057] The connecting rod 302 is semi-circular in shape with a semi-circular angle of 45-60°, which facilitates the connecting rod 302 to swing inside the ring 3 after being squeezed by the protrusion 103.

[0058] The push rod 303 extends to the outside of the ring 3 at the end away from the rotating ball 301. The push rod 303 is semi-circular in shape with a semi-circular angle of 120-180°. The push rod 303 is linked to the connecting rod 302 through the rotating ball 301.

[0059] The push rod 303 is semi-circular in shape with a semi-circular angle of 120-180°. When the connecting rod 302 tilts downward due to the compression of the protrusion 103, the connecting rod 302 drives the push rod 303 to swing through the rotating ball 301. The end of the push rod 303 away from the rotating ball 301 can swing upward.

[0060] The end of the push rod 303 furthest from the rotating ball 301 extends to the outside of the ring 3, as shown in the instruction manual. Figure 7 As shown;

[0061] Wherein: After the protrusion 103 is embedded in the interior of the base 101, the protrusion 103 first presses against the side wall of the connecting rod 302. At this time, the connecting rod 302 at the upper end of the ring 3 can clamp and limit the outer side wall at the lower end of the protrusion 103. The push rod 303 is in a semi-circular arc shape with a semi-circular arc angle of 120-180°. Therefore, when the connecting rod 302 swings through the rotating ball 301, the end of the push rod 303 away from the rotating ball 301 can swing upward.

[0062] Example 4: Refer to the appendix of the instruction manual Figure 4-9 It can be seen that the difference between Embodiment 4 and Embodiments 1-3 is that deformable rods 4 are inlaid on both sides of the hole inside the base 101, and a slider 401 slides at the lower end of the deformable rods 4.

[0063] Among them: the deformable rod 4, the inner wall of the hole of the base 101 is provided with a sliding groove, the sliding groove is arranged vertically, the slider 401 slides vertically inside the sliding groove, when the protrusion 103 is not embedded in the hole of the base 101, the slider 401 is located at the lower end inside the sliding groove, and the deformable rod 4 is made of rubber.

[0064] When slider 401 slides upward inside the groove, the deformation rod 4 bends and deforms as a whole, and the distance between the deformation rods 4 on the inner wall of base 101 shortens. Please refer to the instruction manual appendix. Figure 9 As shown;

[0065] The inner wall of the hole in the base 101 is provided with a sliding groove, which is arranged vertically. The arrangement of the sliding groove can limit the sliding direction of the slider 401.

[0066] When the protrusion 103 is not embedded in the hole of the base 101, the slider 401 is located at the lower end of the groove. Please refer to the instruction manual. Figure 6 As shown;

[0067] Slider 401, the lower end of slider 401 is perpendicular to the end of push rod 303 away from the rotating ball 301;

[0068] Wherein: Since one end of the push rod 303 swings upward, and the lower end of the slider 401 is perpendicular to the end of the push rod 303 away from the rotating ball 301, the push rod 303 can drive the slider 401 to slide upward. The inner wall of the hole of the base 101 is provided with a sliding groove, which is arranged vertically. The arrangement of the sliding groove can limit the sliding direction of the slider 401. At this time, the slider 401 slides upward inside the sliding groove, so that the deformable rod 4 deforms as a whole.

[0069] The spacing between the deformable rods 4 on the inner wall of the base 101 is shortened, and the deformable rods 4 can limit the outer side of the protrusion 103. This allows the base 101 to quickly clamp and limit the protrusion 103 according to the different diameters of the protrusion 103 when different models of base plates 102 and protrusions 103 are connected to the base 101, thereby increasing the stability of the base 101 and base plate 102 after connection.

Claims

1. A device for quick change of production jig for automotive parts, comprising a jig (1), characterized in that: The upper end of the fixture (1) is equipped with a base (101), and the upper end of the base (101) is slidably nested with a base plate (102). The lower end of the base plate (102) is provided with a protrusion (103). The side of the fixture (1) near the base (101) is provided with a wire changing mechanism. The fixture (1) is a fixture for producing automotive parts; the base (101) and the base plate (102) are provided with holes at the upper end of the base (101), and the protrusion (103) is vertically and movably nested with the hole. The diameter of the hole is twice the diameter of the protrusion (103). The base plate (102) is vertically nested with the base (101) through the protrusion (103). Automotive parts are placed on the side of the base plate (102). The line-changing mechanism includes a base (2), a rotating component (201), and a clamp (202). The base (2) is located on both sides of the base (101). The rotating component (201) rotates at the upper end of the base (2), and the clamp (202) is located at the upper end of the rotating component (201). The base (2) and the rotating component (201) are slidably nested at the upper end of the base (2). The base (2), the rotating component (201), and the clamp (202) are combined to form a pneumatic clamp. The rotating component (201) is provided with a pneumatic cylinder, piston, piston rod, cylinder body, and spring at the end near the base (2). The lower end of the clamp (202) is perpendicularly attached to the upper end of the base plate (102), and the clamp (202) is arranged horizontally. The base (101) has a ring (3) inside the hole, and a rotating ball (301) is rotated inside the ring (3). The two ends of the rotating ball (301) are connected by a connecting rod (302) and a push rod (303). The base (101) has a deformable rod (4) embedded in the hole on both sides, and a slider (401) slides at the lower end of the deformable rod (4).

2. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: The ring (3) is located at the lower end inside the base (101). There are 4 rotating spheres (301), which are evenly arranged on the inner side of the ring (3). The diameter of the ring (3) is 2-4 cm larger than the diameter of the convex strip (103).

3. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: The connecting rod (302) is located at the upper end of the inner side of the ring (3). The connecting rod (302) is semi-circular and the semi-circular angle is 45-60°. After the protrusion (103) is embedded in the interior of the base (101), the protrusion (103) is first squeezed against the side wall of the connecting rod (302).

4. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: The end of the push rod (303) away from the rotating ball (301) extends to the outside of the ring (3). The push rod (303) is semi-circular with an angle of 120-180°. The push rod (303) is linked to the connecting rod (302) through the rotating ball (301).

5. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: The inner wall of the hole of the base (101) is provided with a sliding groove, which is arranged vertically. The slider (401) slides vertically inside the sliding groove. When the protrusion (103) is not embedded in the hole of the base (101), the slider (401) is located at the lower end inside the sliding groove.

6. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: When the slider (401) slides upward inside the groove, the deformation rod (4) bends and deforms as a whole, and the distance between the deformation rods (4) on the inner wall of the base (101) is shortened.

7. The device for quick changeover of automotive parts production fixtures according to claim 1, characterized in that: The lower end of the slider (401) is perpendicular to the end of the push rod (303) away from the rotating sphere (301).

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