Die for front and rear floors of automobile

Abstract

The utility model discloses an automobile front and rear floor mould which comprises a mould body and a fixing plate, and the mould body is composed of a lower mould base, a lower module, an upper module and an upper mould base which are sequentially arranged from bottom to top. According to the utility model, the fixing plate is fixed with a machine table in advance, then the mold body is pushed into the sinking groove, the mold body is positioned through the inner side left wall, the inner side right wall and the inner side rear wall of the sinking groove, the air cylinder is started, the air cylinder extends out through the extending shaft of the air cylinder to drive the inserting rods to be inserted into the inserting holes, and the multiple groups of inserting rods are respectively inserted into the multiple groups of inserting holes to be fixed; a plurality of groups of proximity switches are arranged on the rear wall of the inner side of the sinking groove, and all the proximity switches generate signals after the die body is completely attached to the rear wall of the inner side of the sinking groove, so that the air cylinder can be started, and the die body can be conveniently moved out of the die body from the front side of the sinking groove. The problem of inserted link deformation caused by the start cylinder which is not installed in place is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile front and rear floor processing, in particular to an automobile front and rear floor mold. Background Technique

[0002] An automobile floor crossbeam is a group of parts on the front and rear floors of an automobile. During the use of the high-strength plate on the automobile floor crossbeam in a bending mold, the mold needs to be maintained and overhauled regularly to check the wear degree of the bending mold of the high-strength plate of the automobile floor crossbeam. During the overhaul and maintenance process, the mold needs to be disassembled for mechanical observation. However, the current mold has a cumbersome disassembly process and requires a lot of time. For this reason, a public technology has been proposed for the bending mold of the high-strength plate of the automobile floor crossbeam, including an upper mold base, an upper connecting seat and a lower connecting seat. The bottom of the upper mold base is movably installed with a lower mold base. The top of the upper mold base is fixedly installed with two symmetrically distributed front and rear inserting plates. Slots are provided inside both of the two inserting plates. The top of the upper connecting seat is fixedly installed with a motor. This public technology claims that it can solve the problem of wasting time during the disassembly process when checking the mold;

[0003] However, when the above improved technology is used, there is no positioning structure between the mold base and the connecting seat, and there is no installation reference during installation. Moreover, the mold base and the connecting seat are only fixed by connecting two limit plates with the slots. The overall weight of the automobile floor mold is relatively heavy, and the fixing method of the above public technology has a very large potential safety hazard. For this reason, it is necessary to optimize and improve its structure. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an automobile front and rear floor mold.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: An automobile front and rear floor mold, including a mold body and a fixing plate. The mold body is composed of a lower mold base, a lower mold group, an upper mold group and an upper mold base arranged in sequence from bottom to top. A sinking groove is provided on the upper wall of the fixing plate, and the sinking groove communicates with the front wall of the fixing plate. The left and right side walls of the lower mold base are respectively slidably connected with the left inner wall and the right inner wall of the inner side wall of the sinking groove. Wear-resistant pads for preventing wear are provided on both the left inner wall and the right inner wall of the inner side wall of the sinking groove. A detection structure for confirming whether the lower mold base is in place is provided on the inner rear wall of the sinking groove. Sliding holes communicating with the sinking groove are provided on both the left and right side walls of the fixing plate. A connecting plate is slidably connected to the inner side wall of the sliding hole. A connecting structure for fixedly connecting the lower mold base and the fixing plate is provided between the connecting plate and the lower mold base. A driving structure for driving the connecting plate to move is provided on the side wall of the fixing plate and around the sliding hole.

[0006] As a further description of the above technical solution:

[0007] Arc chamfers for guiding the lower die base when it is pushed into the sinking groove are provided at the joints of the left inner wall, right inner wall and front wall of the fixing plate of the sinking groove.

[0008] As a further description of the above technical solution:

[0009] Both groups of the wear-resistant pads are polytetrafluoroethylene plates.

[0010] As a further description of the above technical solution:

[0011] The detection structure includes multiple groups of proximity switches, and the multiple groups of proximity switches are all fixedly connected to the rear wall of the inner side wall of the sinking groove.

[0012] As a further description of the above technical solution:

[0013] The connection structure includes three groups of insertion rods and insertion holes. The three groups of insertion rods are distributed in the front-back direction and are fixedly connected to the side of the connecting plate facing the lower die base in sequence. The three groups of insertion holes are all arranged on the side of the lower die base facing the connecting plate. When the lower die base abuts against the rear wall of the sinking groove, the three groups of insertion rods are respectively opposite to the three groups of insertion holes left and right. The end of the insertion rod away from the connecting plate is conical.

[0014] As a further description of the above technical solution:

[0015] The driving structure includes a backing plate, a fixed seat and a cylinder. The backing plate is fixedly connected to the side wall of the fixing plate and is located at the orifice of the sliding hole. The fixed seat is fixedly connected to the side of the backing plate away from the fixing plate. The top view projection of the fixed seat is in a U shape. The cylinder is fixedly connected to the side of the connecting plate away from the sinking groove. The end of the extending shaft of the cylinder is fixedly connected to the side of the fixed seat away from the backing plate.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, for this automotive front and rear floor mold, the fixing plate is pre-fixed to the machine table, and then the mold body is pushed into the sinking groove. It is positioned by the left inner wall, right inner wall and inner rear wall of the sinking groove, which is convenient for installation. After it is in place, the cylinder is started. Through the extension of the extending shaft of the cylinder, the insertion rods are driven to insert into the insertion holes. The multiple groups of insertion rods are respectively inserted into the multiple groups of insertion holes for fixation, which plays an effective fixing role and improves safety. When the mold needs to be repaired, by retracting the extending shaft of the cylinder, the insertion rods can be driven to pull out from the insertion holes, and then the mold body can be removed from the front side of the sinking groove, which is very convenient.

[0018] 2. Compared with the prior art, for this automotive front and rear floor mold, multiple groups of proximity switches are arranged on the inner rear wall of the sinking groove. After the mold body is completely attached to the inner rear wall of the sinking groove, all the proximity switches generate signals, so that the cylinder can be started, avoiding the problem of the deformation of the insertion rods caused by starting the cylinder when not installed in place, and improving the structural safety. Brief Description of the Drawings

[0019] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a front and rear floor mold for an automobile proposed by the present utility model;

[0020] Figure 2 FIG. 2 is a partial top view sectional view of the connection structure between the inner rear wall of the sunk groove of a front and rear floor mold for an automobile and a proximity switch proposed by the present utility model;

[0021] Figure 3 FIG. 3 is a partial top view sectional view of the connection structure of a fixing plate, a backing plate, a fixing seat, a cylinder and a plug rod of a front and rear floor mold for an automobile proposed by the present utility model.

[0022] Legend:

[0023] 1. Mold body; 2. Fixing plate; 3. Sunk groove; 4. Arc chamfer; 5. Backing plate; 6. Fixing seat; 7. Cylinder; 8. Wear-resistant pad; 9. Insertion hole; 10. Proximity switch; 11. Connection plate; 12. Plug rod. Detailed Description of the Preferred Embodiment

[0024] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Referring to Figures 1 to 3 , a front and rear floor mold for an automobile provided by the present utility model includes a mold body 1 and a fixing plate 2. The mold body 1 is composed of a lower mold base, a lower mold group, an upper mold group and an upper mold base which are arranged in sequence from bottom to top. A sunk groove 3 is provided on the upper wall of the fixing plate 2, and the sunk groove 3 communicates with the front wall of the fixing plate 2. The left and right side walls of the lower mold base are respectively slidably connected to the left inner wall and the right inner wall of the sunk groove 3. In practical applications, there are two groups of fixing plates 2, which are respectively used to fix the upper mold base and the lower mold base. The specific fixing methods are exactly the same. For the convenience of display and description in this embodiment, only the connection method between the lower mold base and the fixing plate 2 will be described in detail;

[0026] As Figure 1 shown, arc chamfers 4 for guiding the lower mold base when it is pushed into the sunk groove 3 are provided at the joints of the left inner wall and the right inner wall of the sunk groove 3 and the front wall of the fixing plate 2. In order to facilitate the pushing of the mold body 1 into the sunk groove 3, the arc chamfers 4 are provided for guiding;

[0027] As Figure 1 , Figure 3As shown in the figure, in order to avoid the wear on the inner left wall and inner right wall of the sinking groove 3 caused by pulling out the mold multiple times, wear-resistant pads 8 for anti-wear are provided on both the inner left wall and inner right wall of the sinking groove 3. Both groups of wear-resistant pads 8 are polytetrafluoroethylene plates, which have good wear-resistant effects, small surface friction coefficients, and are also convenient for replacement;

[0028] As Figure 2 shown in the figure, in order to avoid starting the cylinder 7 before the lower mold base is pushed in place, a detection structure for confirming whether the lower mold base is in place is provided on the inner rear wall of the sinking groove 3. The detection structure includes multiple groups of proximity switches 10, and multiple groups of proximity switches 10 are fixedly connected to the inner rear wall of the sinking groove 3. After the lower mold base is completely pushed in place, all the proximity switches 10 are squeezed, so that the cylinder 7 can be started, effectively avoiding the damage of the insertion rod 12;

[0029] As Figure 1 、 Figure 3 shown in the figure, in order to connect the fixing plate 2 and the lower mold base, sliding holes communicating with the sinking groove 3 are provided on both the left and right side walls of the fixing plate 2. The inner side walls of the sliding holes are slidably connected with connecting plates 11. A connecting structure for fixedly connecting the lower mold base and the fixing plate 2 is provided between the connecting plates 11 and the lower mold base. The connecting structure includes three groups of insertion rods 12 and insertion holes 9. The three groups of insertion rods 12 are fixedly connected in sequence in the front-rear direction on the side of the connecting plate 11 facing the lower mold base. The three groups of insertion holes 9 are all provided on the side of the lower mold base facing the connecting plate 11. When the lower mold base abuts against the rear wall of the sinking groove 3, the three groups of insertion rods 12 are respectively opposite to the three groups of insertion holes 9 in the left-right direction. The end of the insertion rod 12 away from the connecting plate 11 is conical. The ends of the three groups of insertion rods 12 away from the connecting plate 11 all penetrate through the wear-resistant pads 8 and are slidably connected with them. After the insertion rods 12 are inserted into the insertion holes 9, the lower mold base and the fixing plate 2 are fixed together. The simultaneous action of multiple groups of insertion rods 12 greatly improves the connection strength;

[0030] As Figure 1 、 Figure 3 shown in the figure, in order to drive the insertion rod 12 to move, a driving structure for driving the connecting plate 11 to move is provided on the side wall of the fixing plate 2 and around the sliding hole. The driving structure includes a backing plate 5, a fixing seat 6 and a cylinder 7. The backing plate 5 is fixedly connected to the side wall of the fixing plate 2 and is located at the orifice of the sliding hole. The fixing seat 6 is fixedly connected to the side of the backing plate 5 away from the fixing plate 2. The top view projection of the fixing seat 6 is in a U shape. The cylinder 7 is fixedly connected to the side of the connecting plate 11 away from the sinking groove 3. The end of the extending shaft of the cylinder 7 is fixedly connected to the side of the fixing seat 6 away from the backing plate 5. When the extending shaft of the cylinder 7 extends and retracts, it can drive the connecting plate 11 and the insertion rod 12 to move left and right. When the extending shaft of the cylinder 7 extends, since its extending shaft is fixedly connected to the fixing seat 6, it drives the connecting plate 11 to move towards the sinking groove 3, thereby inserting the insertion rod 12 into the insertion hole 9. Conversely, it drives the insertion rod 12 to leave the insertion hole 9.

[0031] Working principle: To facilitate the pushing of the mold body 1 into the sunk groove 3, an arc chamfer 4 is provided for guiding. Both groups of wear-resistant pads 8 are made of polytetrafluoroethylene plates. The polytetrafluoroethylene plates have good wear resistance, a small surface friction coefficient, and are also convenient to replace. Multiple proximity switches 10 are fixedly connected to the rear wall of the inner side wall of the sunk groove 3. After the lower die base is fully pushed in place, all the proximity switches 10 are pressed, so that the air cylinder 7 can be started, effectively avoiding damage to the insertion rods 12. One end of the three groups of insertion rods 12 away from the connecting plate 11 all penetrates through the wear-resistant pads 8 and is slidably connected thereto. After the insertion rods 12 are inserted into the insertion holes 9, the lower die base and the fixing plate 2 are fixed together. The multiple groups of insertion rods 12 act simultaneously, greatly improving the connection strength. The extending shaft of the air cylinder 7 extends and retracts, which can drive the connecting plate 11 and the insertion rods 12 to move left and right. When the extending shaft of the air cylinder 7 extends, since its extending shaft is fixedly connected to the fixed seat 6, it drives the connecting plate 11 to move towards the sunk groove 3, thereby inserting the insertion rods 12 into the insertion holes 9. Conversely, it drives the insertion rods 12 to leave the insertion holes 9.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automobile front and rear floor mold, characterized in that: It includes a die body (1) and a fixing plate (2). The die body (1) is composed of a lower die base, a lower die set, an upper die set, and an upper die base arranged in sequence from bottom to top. A sunk groove (3) is provided on the upper wall of the fixing plate (2), and the sunk groove (3) communicates with the front wall of the fixing plate (2). The left and right side walls of the lower die base are respectively slidably connected to the left inner wall and the right inner wall of the sunk groove (3). Wear-resistant pads (8) for preventing wear are provided on both the left inner wall and the right inner wall of the sunk groove (3). A detection structure for confirming whether the lower die base is properly fitted is provided on the inner rear wall of the sunk groove (3). Sliding holes communicating with the sunk groove (3) are provided on both the left and right side walls of the fixing plate (2). A connecting plate (11) is slidably connected to the inner side wall of the sliding hole. A connecting structure for fixedly connecting the lower die base and the fixing plate (2) is provided between the connecting plate (11) and the lower die base. A driving structure for driving the connecting plate (11) to move is provided on the side wall of the fixing plate (2) and around the sliding hole.

2. The automotive front and rear floor mold according to claim 1, characterized in that: Arc chamfers (4) for guiding when the lower die base is pushed into the sunk groove (3) are provided at the joints of the left inner wall, the right inner wall of the sunk groove (3) and the front wall of the fixing plate (2).

3. The automotive front and rear floor mold according to claim 2, characterized in that: Both groups of the wear-resistant pads (8) are polytetrafluoroethylene plates.

4. The automotive front and rear floor mold according to claim 3, characterized in that: The detection structure includes multiple proximity switches (10), and multiple groups of the proximity switches (10) are fixedly connected to the inner rear wall of the sunk groove (3).

5. The automotive front and rear floor mold according to claim 4, characterized in that: The connecting structure includes three inserting rods (12) and inserting holes (9). The three inserting rods (12) are arranged in the front-back direction and are fixedly connected to the side of the connecting plate (11) facing the lower die base in sequence. The three inserting holes (9) are all provided on the side of the lower die base facing the connecting plate (11). When the lower die base abuts against the rear wall of the sunk groove (3), the three inserting rods (12) are respectively opposite to the three inserting holes (9) left and right. The end of the inserting rod (12) away from the connecting plate (11) is conical.

6. The automotive front and rear floor mold according to claim 5, wherein: The driving structure includes a backing plate (5), a fixed seat (6), and a cylinder (7). The backing plate (5) is fixedly connected to the side wall of the fixing plate (2) and at the orifice of the sliding hole. The fixed seat (6) is fixedly connected to the side of the backing plate (5) away from the fixing plate (2). The top view projection of the fixed seat (6) is in a U shape. The cylinder (7) is fixedly connected to the side of the connecting plate (11) away from the sunk groove (3), and the end of the extending shaft of the cylinder (7) is fixedly connected to the side of the fixed seat (6) away from the backing plate (5).

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