Stepping mechanism with variable material distance

Abstract

The utility model discloses a variable material distance stepping mechanism which comprises a bottom plate and a middle plate which are vertically arranged in parallel, supporting column units used for placing shaft workpieces are symmetrically arranged on the left side and the right side of the middle plate, and second guide rails are arranged on the two sides of the middle plate in the front-back direction. The supporting column unit comprises a plurality of first supporting columns capable of sliding back and forth along the supporting column unit and a single second supporting column fixed to the end of the middle plate. A single-set connecting rod unit is hinged between every two adjacent supporting column units and comprises a first connecting rod, a second connecting rod and a U-shaped block, the first connecting rod and the second connecting rod are hinged to each other, the U-shaped block is fixedly arranged on the first connecting rod, and the left inner end face and the right inner end face of the U-shaped block are provided with a first limiting face and a second limiting face respectively. The second connecting rod is limited through the first limiting face and the second limiting face, and the problem that the distance between adjacent shaft workpieces in a feeding conveying mechanism is different from the distance between adjacent shaft workpieces in a machine tool is solved.

Description

Technical Field

[0001] The utility model relates to the automated induction heating industry, in particular to a variable material distance stepping mechanism. Background Art

[0002] At present, in the automated induction heating industry, the production of shaft workpieces by single loading can no longer meet the production demand. At this time, multiple loading is required to achieve synchronous production, so as to shorten the production time and increase the output. Inside the machine tool, when the shaft workpieces are induction hardened, there is a certain distance between two adjacent shaft workpieces. The number of shaft workpieces required on the loading and conveying mechanism is often dozens. These dozens of shaft workpieces will take up too much space if they are placed according to the distance between adjacent shaft workpieces in the machine tool. Therefore, it is necessary to place as many shaft workpieces as possible on the loading and conveying mechanism while minimizing the working space. At the same time, it is also necessary to consider the situation that the distance between the shaft workpieces on the loading and conveying mechanism is different from the distance between the workstations inside the machine tool.

[0003] Therefore, it is urgent to propose a new solution to solve the above problems. Summary of the invention

[0004] The utility model provides a variable material distance stepping mechanism, which solves the problem in the prior art that when a feeding conveying mechanism simultaneously feeds multiple materials, the distance between adjacent shaft workpieces in the feeding conveying mechanism is different from the distance between adjacent shaft workpieces in a machine tool.

[0005] The utility model provides a variable material distance stepping mechanism, comprising a bottom plate and an intermediate plate arranged in parallel up and down, a first guide rail arranged on both sides of the bottom plate, a slider connecting unit movably connected to the first guide rail, a first cylinder for pushing the intermediate plate to move up and down is arranged on the slider connecting unit, a second cylinder for pushing the slider connecting unit to move forward and backward is arranged on the bottom plate, and an output shaft of the second cylinder is connected to the slider connecting unit;

[0006] The middle plate is symmetrically provided with support column units for placing shaft workpieces on the left and right sides, and the middle plate is provided with second guide rails along the front-to-back direction on both sides, and the support column units include a plurality of first support columns that can slide forward and backward along the second guide rails and a single second support column fixed to the end of the middle plate, and the middle plate is provided with a third cylinder for pushing the first support column to move forward and backward along the second guide rail;

[0007] A single group of connecting rod units is hingedly connected between two adjacent support column units, and the single group of connecting rod units includes a first connecting rod and a second connecting rod hinged to each other, and a U-shaped block fixedly arranged on the first connecting rod, and the first connecting rod and the second connecting rod are rotatably hinged on the support column unit at one end away from the U-shaped block, and the left and right inner end surfaces of the U-shaped block are inclined to have a first limiting surface and a second limiting surface for limiting the two side edges of the second connecting rod respectively.

[0008] Furthermore, a middle connecting block protruding outward is fixedly provided at the lower end of each of the first supporting column and the second supporting column, and a rotating shaft for hingedly connecting the first connecting rod and the second connecting rod in sequence is fixedly provided on the upper surface of the middle connecting block.

[0009] Furthermore, the intermediate connection blocks are all arranged at the same horizontal height.

[0010] Furthermore, a V-shaped groove for placing shaft workpieces is formed at the upper end of a single supporting column unit.

[0011] Furthermore, a dovetail groove is provided at the top of the second guide rail, and matching protrusions are provided at the bottoms of the first support column and the second support column.

[0012] Furthermore, a group of first support columns farthest from the second support columns are connected as a whole via a middle connecting plate, and the piston rod of the third cylinder is fixedly connected to the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a variable material distance stepping mechanism, which allows as many shaft workpieces as possible to be placed on a loading and conveying mechanism by arranging multiple first support columns and a second support column, and then uses the first cylinder and the second cylinder to cooperate to complete the loading process of multiple shaft workpieces, and then limits the two side edges of the second connecting rod respectively through the first limiting surface and the second limiting surface on the U-shaped block, so that the spacing between the two shaft workpieces is the same as the spacing between the workstations in the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the variable material distance stepping mechanism of the utility model in the extended state;

[0016] Figure 2 for Figure 1 Side view of

[0017] Figure 3 for Figure 1 The main view;

[0018] Figure 4 for Figure 1 A top view of

[0019] Figure 5 It is a three-dimensional schematic diagram of the variable material distance stepping mechanism of the utility model in a shortened state;

[0020] Figure 6 It is a three-dimensional schematic diagram of the connecting rod unit of the utility model in an extended state;

[0021] Figure 7 It is a three-dimensional schematic diagram of the connecting rod unit of the utility model in a shortened state;

[0022] Figure numerals: 1. bottom plate; 11. first guide rail; 2. middle plate; 21. second guide rail; 211. dovetail groove; 3. slider connection unit; 4. first cylinder; 5. second cylinder; 6. support column unit; 61. first support column; 62. second support column; 63. middle connection block; 64. rotating shaft; 65. V-shaped groove; 7. shaft workpiece; 8. connecting rod unit; 811. first connecting rod; 812. second connecting rod; 82. U-shaped block; 821. first limiting surface; 822. second limiting surface; 9. third cylinder; 91. connecting plate. DETAILED DESCRIPTION

[0023] In order to further understand the content, features and functions of the utility model, the following embodiments are given, together with the attached Figures 1 to 7 The detailed instructions are as follows.

[0024] like Figures 1 to 7 As shown, this embodiment discloses a variable material distance stepping mechanism, including a base plate 1 and an intermediate plate 2 arranged in parallel up and down, a first guide rail 11 arranged on both sides of the base plate 1, a slider connection unit 3 movably connected to the first guide rail 11, a first cylinder 4 for pushing the intermediate plate 2 to move up and down is arranged on the slider connection unit 3, a second cylinder 5 for pushing the slider connection unit 3 to move forward and backward is arranged on the base plate 1, and the output shaft of the second cylinder 5 is connected to the slider connection unit 3.

[0025] Support column units 6 for placing shaft workpieces 7 are symmetrically arranged on the left and right sides of the middle plate 2. Second guide rails 21 are arranged on both sides of the middle plate 2 along the front-to-back direction. The support column units 6 include three first support columns 61 that can slide forward and backward along the second guide rails 21 and a single second support column 62 fixed to the end of the middle plate 2 by welding. The middle plate 2 is provided with a third cylinder 9 that pushes the first support column 61 to move forward and backward along the second guide rail 21, wherein the number of the first support columns 61 can also be adjusted according to actual conditions;

[0026] A single-group connecting rod unit 8 is hingedly connected between two adjacent support column units 6, and the single-group connecting rod unit 8 includes a first connecting rod 811 and a second connecting rod 812 hinged to each other, and a U-shaped block 82 fixed on the first connecting rod 811 by welding, wherein the first connecting rod 811 and the second connecting rod 812 are rotatably hinged on the support column unit 6 at one end away from the U-shaped block 82, and the left and right inner end surfaces of the U-shaped block 82 are inclinedly provided with a first limiting surface 821 and a second limiting surface 822 for limiting the two side edges of the second connecting rod 812 respectively.

[0027] like Figure 6 and 7 As shown, by setting the inclination angle of the first limit surface 821, when it abuts against the second connecting rod 812, the spacing between adjacent shaft workpieces 7 is the same as the spacing between shaft workpieces on the feeding and conveying mechanism; by setting the inclination angle α of the second limit surface 822, when it abuts against the second connecting rod 812, the spacing between adjacent shaft workpieces 7 is the same as the spacing between workstations inside the machine tool.

[0028] The utility model provides a variable material distance stepping mechanism, which allows as many shaft workpieces as possible to be placed on a loading and conveying mechanism by arranging multiple first support columns and a second support column, and then uses the first cylinder and the second cylinder to cooperate to complete the loading process of multiple shaft workpieces, and then limits the two side edges of the second connecting rod respectively through the first limiting surface and the second limiting surface on the U-shaped block, so that the spacing between the two shaft workpieces is the same as the spacing between the workstations in the machine tool.

[0029] The movement process of the utility model is as follows: the first cylinder 4 extends upward to lift the four shaft workpieces 7 on the docking feeding and conveying mechanism, and then the second cylinder 5 extends horizontally to drive the shaft workpieces 7 to move horizontally. When they reach the material position on the machine tool, the first cylinder 4 retracts downward to place the shaft workpieces 7 on the material position on the machine tool, and the second cylinder 5 retracts horizontally, thereby completing a cycle of stepping action.

[0030] At the beginning of the stepping action, the second connecting rod 812 and the first limiting surface 821 are in contact with each other, so that the spacing between adjacent first support columns 61 is the same as the spacing on the loading and conveying mechanism; then the first cylinder 4 rises, and when the four shaft workpieces 7 on the docking loading and conveying mechanism are lifted, the shaft workpieces 7 leave the loading and conveying mechanism; then the third cylinder 9 extends out, driving multiple first support columns 61 to move in the second guide rail 21 in sequence, and the second connecting rod 812 touches the second limiting surface 822. At this time, the U-shaped block 82 supports the shaft workpiece 7 to the final position, and finally completes the distance change of all shaft workpieces 7. At this time, the spacing of the shaft workpieces 7 is the same as the spacing of the workstations in the machine tool; when reaching the material position on the machine tool, the first cylinder 4 retracts, and then the third cylinder 9 retracts, the second connecting rod 812 and the first limiting surface 821 are in contact with each other again, and the U-shaped block 82 reaches the initial position, thereby completing a cycle of distance change action.

[0031] In this embodiment, Figure 1 and 2 As shown, the lower ends of the single first support column 61 and the second support column 62 are fixed by welding with an outwardly protruding middle connecting block 63, and the upper surface of the middle connecting block 63 is fixed by welding with a rotating shaft 64 for hingedly connecting the first connecting rod 811 and the second connecting rod 812 in sequence. By setting the rotating shaft 64, the first connecting rod 811 and the second connecting rod 812 can rotate relative to each other.

[0032] In this embodiment, Figure 2 As shown, the intermediate connection blocks 63 are all arranged at the same horizontal height, which ensures the consistency of the overall movement and ensures that the distance between the first support column 61 and the second support column 62 is the same as the distance between the two adjacent first support columns 61 mentioned above.

[0033] In this embodiment, Figure 2 As shown, a V-shaped groove 65 for placing the shaft workpiece 7 is opened at the upper end of the single support column unit 6, which ensures the stability of the sample support column unit 6 during the transmission process.

[0034] In this embodiment, Figure 3 As shown, a dovetail groove 211 is provided on the top of the second guide rail 21, and matching protrusions are provided on the bottoms of the first support column 61 and the second support column 62 to ensure stability during the transmission process.

[0035] In this embodiment, Figures 1 to 5 As shown, a group of first support columns 61 farthest from the second support columns 62 are connected as a whole through a middle connecting plate 91, and both ends of the connecting plate 91 are fixed to the sides of the left and right first support columns 61 by welding. The piston rod of the third cylinder 9 is fixedly connected to the connecting plate 91, and the first support column 61 and the second support column 62 are driven forward in sequence through the connecting plate 91.

[0036] The utility model described above only expresses the implementation method of the utility model embodiment, and cannot be understood as limiting the scope of the utility model patent, nor is it any form of limitation on the structure of the utility model embodiment. It should be pointed out that for ordinary technicians in this field, several changes and improvements can be made without departing from the concept of the utility model embodiment, which all belong to the protection scope of the utility model embodiment.

Claims

1. A variable material distance stepping mechanism, comprising a bottom plate (1) and an intermediate plate (2) arranged in parallel up and down, a first guide rail (11) arranged on both sides of the bottom plate (1), a slider connecting unit (3) movably connected to the first guide rail (11), the slider connecting unit (3) being provided with a first cylinder (4) for pushing the intermediate plate (2) to move up and down, the bottom plate (1) being provided with a second cylinder (5) for pushing the slider connecting unit (3) to move forward and backward, the output shaft of the second cylinder (5) being connected to the slider connecting unit (3); characterized in that: Support column units (6) for placing shaft-type workpieces (7) are symmetrically arranged on the left and right sides of the intermediate plate (2); second guide rails (21) are arranged on both sides of the intermediate plate (2) along the front-rear direction; the support column units (6) include a plurality of first support columns (61) that can slide forward and backward along the second guide rails (21) and a single second support column (62) fixed to the end of the intermediate plate (2); and a third cylinder (9) is arranged on the intermediate plate (2) to push the first support column (61) to move forward and backward along the second guide rail (21); A single group of connecting rod units (8) is hingedly connected between two adjacent supporting column units (6), and the single group of connecting rod units (8) includes a first connecting rod (811) and a second connecting rod (812) hingedly connected to each other, and a U-shaped block (82) fixedly arranged on the first connecting rod (811), and the first connecting rod (811) and the second connecting rod (812) are both rotatably hinged on the supporting column unit (6) at one end away from the U-shaped block (82), and the left and right inner end surfaces of the U-shaped block (82) are inclinedly provided with a first limiting surface (821) and a second limiting surface (822) for limiting the two side edges of the second connecting rod (812) respectively.

2. A variable material distance stepping mechanism according to claim 1, characterized in that: An outwardly protruding middle connection block (63) is fixedly provided at the lower end of each of the first support column (61) and the second support column (62), and a rotating shaft (64) for hingedly connecting the first connecting rod (811) and the second connecting rod (812) in sequence is fixedly provided on the upper surface of the middle connection block (63).

3. A variable material distance stepping mechanism according to claim 2, characterized in that: The intermediate connection blocks (63) are all arranged at the same level.

4. A variable material distance stepping mechanism according to claim 1, characterized in that: A V-shaped groove (65) for placing a shaft workpiece (7) is provided at the upper end of each of the support column units (6).

5. The variable material distance stepping mechanism according to claim 1, characterized in that: A dovetail groove (211) is provided at the top of the second guide rail (21), and matching protrusions are provided at the bottoms of the first support column (61) and the second support column (62).

6. A variable material distance stepping mechanism according to claim 1, characterized in that: A group of first support columns (61) farthest from the second support column (62) are connected as a whole via a middle connecting plate (91), and the piston rod of the third cylinder (9) is fixedly connected to the connecting plate (91).

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