Long rack deformation straightening tool

Abstract

The utility model belongs to the technical field of rack straightening, and discloses a long rack deformation straightening tool which comprises a bottom plate and a plurality of guide rods fixedly installed on the bottom plate, a pressing plate is connected between the guide rods in a sliding mode, an upper die base is fixedly installed below the pressing plate, a first installation base is fixedly installed in the upper die base, and a second installation base is fixedly installed in the first installation base. Three upper pressing heads are slidably mounted in the first mounting base, three first push blocks are slidably connected in the first mounting base, the three first push blocks are slidably connected in the three upper pressing heads in a one-to-one correspondence mode, a lower die base is fixedly arranged above the bottom plate, and a second mounting base is fixedly mounted in the lower die base; and two lower pressing heads are arranged in the second mounting seat. According to the straightening device, the three first push blocks are adjusted respectively to enable the three upper pressing heads to be in upward protruding shapes of different degrees, so that long racks made of different materials can be straightened, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rack straightening technical field, concretely relates to a long rack deformation straightening tool. BACKGROUND

[0002] In the production process of long rack, after high-temperature sintering and heat treatment, the product often appears bending deformation and other conditions, at present, the long rack appears bending mainly adopts artificial straightening, artificial straightening through the die pressurization or through artificial knocking straightening, but the die is often special die, practicality is poor, artificial knocking straightening is very high to the technical level of workers, time -consuming and labor -intensive, efficiency is lower, and leads to cost increase. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a long rack deformation straightening tool to solve the problems of poor practicality and low efficiency of the existing long rack deformation straightening method.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A long rack deformation straightening tool, including the bottom plate and the multiple guide rods fixedly installed on the bottom plate, multiple the guide rod between sliding connection has the pressing plate, the pressing plate below fixedly installed with the upper die holder, the upper die holder is fixedly installed with the first mounting seat in, the first mounting seat in sliding installation has three upper pressure head, the first mounting seat in sliding connection has three first push block, three first push block one one correspondence is slidably connected in three upper pressure head, and the inboard of upper pressure head is equipped with the first inclined plane of sliding contact with first push block, the bottom plate top fixedly equipped with lower die holder, the lower die holder is fixedly installed with the second mounting seat in, the second mounting seat in is equipped with two lower pressure head, and two lower pressure head are located between two groups of adjacent two upper pressure head respectively.

[0006] Preferably, the first push block one side rotatably connected with first adjusting bolt, the screw rod of first adjusting bolt sliding passes through upper die holder and is screwed through first mounting seat.

[0007] Preferably, the first inclined plane of inboard of upper pressure head is fixedly installed with limit block, the first push block is equipped with the sliding slot, and the limit block is slidably fitted in the sliding slot.

[0008] Preferably, the second mounting seat in sliding connection has two second push block, two second push block one one correspondence is slidably connected in two lower pressure head, and the inboard of lower pressure head is equipped with the second inclined plane of sliding cooperation with second push block.

[0009] Preferably, the second push block one side rotatably connected with second adjusting bolt, the screw rod of second adjusting bolt sliding passes through lower die holder and is screwed through second mounting seat.

[0010] Preferably, the bottom plate is fixedly installed with a fixed plate between the lower die seat, and two springs are fixedly installed on the fixed plate, and the top parts of the two springs are fixedly connected with the bottoms of the two lower pressing heads respectively.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a first push block, and when straightening the long rack, the two ends of the long rack are lowered and the middle part is raised by pressing the two ends of the long rack, the long rack has elastic plasticity, so the long rack needs to be pressed to be convex, and after being loosened, the long rack can return to a straight state to complete straightening, the elastic plasticity of the long rack of different materials is different, so the convex degree of the long rack of different materials is different when straightening, three first push blocks are adjusted respectively to make the three upper pressing heads present different degrees of convexity, and the upper pressing head in the middle is used for preventing damage of the long rack caused by excessive straightening, so that the long rack of different materials can be straightened, and practicality is improved.

[0013] (2) The utility model discloses a second push block, and the sliding of the second push block can adjust the height difference between the two lower pressing heads, is used for supporting the long rack with a stepped bottom surface or a part of convex bottom surface, and practicality is improved.

[0014] (3) The utility model discloses a spring, when the pressing plate is lowered and the upper die seat drives the first mounting seat and the upper pressing head to straighten the long rack, the lower pressing head first presses the spring until the second slope in the lower pressing head is in abutment with the second push block, and then the long rack is straightened, so that the long rack is located in the second mounting seat before straightening, so that the long rack can be prevented from being twisted due to deviation during the straightening process, in addition, the elastic force of the spring makes the lower pressing head push the long rack to move upwards after straightening, the long rack is convenient to take and feed, and efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the perspective view of the utility model;

[0016] Figure 2 It is the first sectional view of the utility model;

[0017] Figure 3 It is the second sectional view of the utility model;

[0018] Figure 4 It is the third sectional view of the utility model;

[0019] In the drawing: 1 - bottom plate, 2 - fixed plate, 3 - lower die seat, 4 - upper die seat, 5 - pressing plate, 6 - first adjusting bolt, 7 - guide rod, 8 - lower pressing head, 9 - second adjusting bolt, 10 - first mounting seat, 11 - first push block, 12 - upper pressing head, 13 - sliding slot, 14 - limit block, 15 - second mounting seat, 16 - spring, 17 - second push block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Please refer to Figures 1-4 The present application provides the following technical solutions:

[0022] The long rack straightening device comprises a bottom plate 1, a plurality of guide rods 7 fixedly installed on the bottom plate 1, a pressing plate 5 slidably connected between the plurality of guide rods 7, an upper die seat 4 fixedly installed below the pressing plate 5, a first mounting seat 10 fixedly installed in the upper die seat 4, three upper pressing heads 12 slidably installed in the first mounting seat 10, three first push blocks 11 slidably connected in the first mounting seat 10, the three first push blocks 11 corresponding to the three upper pressing heads 12 respectively, a first inclined surface provided on the inner side of the upper pressing head 12 and slidably abutting against the first push block 11, a lower die seat 3 fixedly provided above the bottom plate 1, a second mounting seat 15 fixedly installed in the lower die seat 3, two lower pressing heads 8 provided in the second mounting seat 15, and the two lower pressing heads 8 located between two groups of adjacent upper pressing heads 12 respectively.

[0023] The first push block 11 is rotatably connected with a first adjusting bolt 6, and the threaded rod of the first adjusting bolt 6 slidably penetrates the upper die seat 4 and is screwed through the first mounting seat 10.

[0024] Based on the above disclosed structure, when straightening the long rack:

[0025] First, the relative height between the three upper pressing heads 12 is adjusted according to the elastic-plasticity of the long rack of different materials, so that the upper convexity of the bottom of the three upper pressing heads 12 can make the long rack automatically return to a straight state after pressing the long rack. The specific operation is as follows: rotate the first adjusting bolt 6, when the first adjusting bolt 6 is screwed into the first mounting seat 6, the first push block 11 slides towards the first inclined surface, so that the first push block 11 pushes the upper pressing head 12 downward through the first inclined surface; conversely, when the first adjusting bolt 6 is screwed out of the first mounting seat 6, the upper pressing head 12 moves downward; in this way, the three first adjusting bolts 6 are rotated respectively to control the lifting of the three upper pressing heads 12, so as to adjust the degree of upper convexity of the bottom of the three upper pressing heads 12.

[0026] Then the deformed long rack is placed above the two lower pressing heads 8, preferably the top of the pressing plate 5 is fixed with the end of the external hydraulic push rod, the external hydraulic push rod pushes the pressing plate 5 downward, the pressing plate 5 moves downward along the plurality of guide rods 7, so that the upper die seat 4 drives the first mounting seat 10 and the three upper pressing heads 12 to move downward, so that the two upper pressing heads 12 on the two sides press the two ends of the long rack, so that the two ends of the long rack move downward, and the middle part of the long rack is upwardly buckled, until the middle part of the long rack is in contact with the bottom of the middle upper pressing head 12, so that the long rack is pressed to a set upper convex shape, then the pressure is maintained for two seconds, then the external hydraulic push rod drives the pressing plate 5 to move upward, so that the upper die seat 4 drives the first mounting seat 10 and the three upper pressing heads 12 to move upward, so that the long rack automatically returns to a straight state, thereby completing the straightening of the long rack.

[0027] Preferably, a limiting block 14 is fixedly installed on the first inclined surface inside the upper pressing head 12, and a sliding groove 13 is formed on the first push block 11, and the limiting block 14 is slidingly fitted in the sliding groove 13. Based on this, when the first push block 11 moves, the limiting block 14 on the first inclined surface inside the upper pressing head 12 moves in the sliding groove 13 on the first push block 11, so that the first push block 11 is always in contact with the inclined surface of the upper pressing head 12, facilitating observation of the upper convex degree of the bottom of the three upper pressing heads 12.

[0028] As described above, regarding the lower pressing head 8, the following structure is preferably provided:

[0029] Two second push blocks 17 are slidingly connected in the second mounting seat 15, and the two second push blocks 17 are slidingly connected in the two lower pressing heads 8 one by one, and the inner side of the lower pressing head 8 is provided with a second inclined surface slidingly fitted with the second push block 17;

[0030] The second adjusting screw 9 is rotatably connected to one side of the second push block 17, and the threaded rod of the second adjusting screw 9 slidingly penetrates the lower die seat 3 and is screwed through the second mounting seat 15;

[0031] A fixed plate 2 is fixedly installed between the bottom plate 1 and the lower die seat 3, and two springs 16 are fixedly installed on the fixed plate 2, and the top of each spring 16 is fixedly connected with the bottom of each lower pressing head 8.

[0032] As can be seen from the above, for the long rack with a stepped bottom or a part of the protrusion, the relative height of the two lower pressing heads 8 when pressed is adjusted before straightening. Specifically, the distance between the second inclined surface in the two lower pressing heads 8 and the second push block 17 is controlled by rotating the two second adjusting screws 9 respectively, so as to control the maximum distance that the two lower pressing heads 8 can move downward, and then make the top of the two lower pressing heads 8 have a height difference when pressing the long rack, so as to facilitate supporting the long rack of different shapes;

[0033] Then, when the three upper pressing heads 12 are pressed down, the long rack first pushes the two lower pressing heads 8 to move down in the second mounting seat 15, and the bottom of the two lower pressing heads 8 respectively compresses the two springs 16, until the second inclined surface in the two lower pressing heads 8 is in contact with the second push block 17, at this time the long rack is retracted in the second mounting seat 15, avoiding the long rack from being twisted during the straightening process, then when the three upper pressing heads 12 are lifted up after the straightening is completed, the elastic force of the two springs 16 respectively pushes the two lower pressing heads 8 to move up, so that the two lower pressing heads 8 push the long rack out of the second mounting seat 15, so as to facilitate the unloading and loading of the long rack, and improve the straightening efficiency.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long rack deforming straightening tool, characterized by: The utility model relates to a moulding machine, including bottom plate (1) and the fixed installation of a plurality of guide rod (7) on bottom plate (1), a plurality of the guide rod (7) between sliding connection has the pressing plate (5), the pressing plate (5) below fixed installation has upper die holder (4), the upper die holder (4) in fixed installation has first mounting seat (10), the first mounting seat (10) in sliding installation has three upper pressure head (12), the first mounting seat (10) sliding connection has three first push block (11), three first push block (11) one to one corresponding respectively sliding connection in three upper pressure head (12), and upper pressure head (12) inside is equipped with the first inclined plane of sliding contact with first push block (11), bottom plate (1) top fixedly equipped with lower die holder (3), the lower die holder (3) in fixed installation has second mounting seat (15), the second mounting seat (15) is equipped with two lower pressure head (8) in, and two lower pressure head (8) are located between two groups of adjacent two upper pressure head (12) respectively.

2. The long rack straightening fixture of claim 1, wherein: The first push block (11) one side rotatable connection has first adjusting bolt (6), the screw rod of first adjusting bolt (6) sliding passes through upper die holder (4) and is screwed and penetrates first mounting seat (10).

3. The long rack straightening fixture of claim 1, wherein: The first inclined plane of upper pressure head (12) inside fixed installation has limit block (14), the first push block (11) is equipped with the sliding slot (13) on, limit block (14) sliding fit in sliding slot (13).

4. The long rack straightening fixture of claim 1, wherein: The second mounting seat (15) sliding connection has two second push block (17), two second push block (17) one to one corresponding respectively sliding connection in two lower pressure head (8), and lower pressure head (8) inside is equipped with the second inclined plane of sliding fit with second push block (17).

5. The long rack straightening fixture of claim 4, wherein: The second push block (17) one side rotatable connection has second adjusting bolt (9), the screw rod of second adjusting bolt (9) sliding passes through lower die holder (3) and is screwed and penetrates second mounting seat (15).

6. The long rack straightening fixture of claim 4, wherein: The bottom plate (1) with lower die holder (3) fixed installation has fixed plate (2), the fixed plate (2) is equipped with two springs (16) on, and the top of two springs (16) is fixedly connected with the bottom of two lower pressure head (8) respectively.

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