Clamping, taking and placing equipment for heat treatment of workpieces

Abstract

The clamping, taking and placing equipment for workpiece heat treatment comprises a heat treatment furnace, a box is movably arranged at the upper end of the heat treatment furnace, and a first hydraulic cylinder and a second hydraulic cylinder are fixedly connected to the middles of the two upper end faces of the box correspondingly; second tools are fixedly connected to the extending output ends of the lower portions of the first hydraulic cylinder and the second hydraulic cylinder correspondingly, a plurality of cover plates are arranged at the upper end of the heat treatment furnace at equal intervals, a material frame is arranged in the heat treatment furnace, and first tools are fixedly connected to the middles of the upper ends of the cover plates and the middle of the upper end of the material frame correspondingly; the first tool comprises a fixing block, a U-shaped piece is arranged in the fixing block in a sliding mode, a vertical groove and an inclined groove are formed in the inner wall of the U-shaped piece, the second tool comprises an inserting plate, telescopic rods extend out of the two sides of the inserting plate, the bottom wall of the U-shaped piece is a first inclined face, and the lower end face of the inserting plate is a third inclined face. The device has the advantages of being simple in structure and high in reliability, and meanwhile loss of heat in the furnace is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping equipment, and in particular to a clamping and placing equipment for heat treatment of workpieces. Background Art

[0002] Heat treatment refers to a metal heat processing process in which the material is heated, kept warm and cooled in the solid state to obtain the expected structure and performance. The appropriate range of heat treatment temperature depends on the type of material and the purpose of heat treatment, and is generally between 400℃ and 1200℃.

[0003] Heat treatment is generally divided into two operation modes. One is continuous heat treatment, which is to place the workpiece on a conveyor belt and pass through the heating zone for heat treatment. However, this method is not completely sealed and has a large heat loss. The other is batch processing, which is to seal the entire batch of workpieces in a heat treatment furnace for heating, and then take out the entire batch. This method has the problem of a long initial heating time for the workpieces. When taking out the entire batch, it is necessary to consider the high temperature resistance of the removal equipment. Summary of the invention

[0004] In order to solve the above problems, the present invention discloses a clamping and placing device for heat treatment of workpieces, including a heat treatment furnace, a box body is movably arranged at the upper end of the heat treatment furnace, the side profile of the box body is "L" shaped, and the middle of the two upper end faces of the box body are respectively fixedly connected with a first hydraulic cylinder and a second hydraulic cylinder, the output ends extending from the lower parts of the first hydraulic cylinder and the second hydraulic cylinder are both fixedly connected with a second tooling, a plurality of cover plates are equidistantly arranged at the upper end of the heat treatment furnace, a material rack is arranged inside the heat treatment furnace, and the cover plate and the middle of the upper end of the material rack are both fixedly connected with a first tooling. The first hydraulic cylinder and the second hydraulic cylinder are both used for lifting, and under the connection of the first tooling and the second tooling, the material rack and the cover plate are lifted respectively.

[0005] The first tooling includes a fixed block, a U-shaped piece is slidably arranged inside the fixed block, a vertical slot and an oblique slot are arranged on the inner wall of the U-shaped piece, and the lower part of the oblique slot extends to the lower part of the vertical slot, and the second tooling includes a plug board, telescopic rods are extended from both sides of the plug board, and a second spring is arranged between the two telescopic rods. When the plug board is inserted into the U-shaped piece, its telescopic rod is matched with the upper part of the oblique slot, and it can be lifted up at this time.

[0006] The bottom wall of the U-shaped piece is the first inclined surface, the lower end surface of the plug plate is the third inclined surface, and the telescopic rod is fitted in the inclined groove. As the plug plate moves downward, the third inclined surface squeezes the first inclined surface, causing the U-shaped piece to slide, so that the telescopic rod slides along the inclined groove into the vertical groove. This operation is used to separate the first tooling and the second tooling. It should be noted that the upper inner wall of the vertical groove is arc-shaped and eventually parallel to the inner wall of the U-shaped piece, which is conducive to the telescopic rod sliding out of the vertical groove.

[0007] Preferably, a first spring is arranged on one side of the U-shaped member, and the first spring is arranged close to the inclined groove, and the other end of the first spring abuts against the inner wall of the fixing block. The first spring is used to limit the position of the U-shaped member, and when the first spring is compressed, the U-shaped member slides.

[0008] Preferably, an opening is provided in the middle of the upper end of the fixing block, the opening is a second inclined surface, and fourth inclined surfaces are provided on both sides of the lower end of the plug plate, and the second inclined surface cooperates with the fourth inclined surface, so as to facilitate smooth insertion of the plug plate and cooperation with the U-shaped piece.

[0009] Preferably, the telescopic rod is provided with a sliding hole, a limiting column is inserted in the sliding hole, the end of the limiting column is fixedly connected to the plug plate, and one end face of the telescopic rod is inclined. Under the action of the second spring, the telescopic rod maintains an outwardly extended state to prevent the telescopic rod from falling out, so this structure is provided, and the inclined setting of the end of the telescopic rod is matched with the second inclined surface. During the insertion of the plug plate, the telescopic rod is pressed into the plug plate, so that the plug plate is matched with the U-shaped piece. When the telescopic rod is located at the inclined groove, it extends out and is inserted into the inclined groove to achieve the connection between the first tooling and the second tooling.

[0010] Preferably, a receiving mechanism is provided at the lower part of the box body, and the receiving mechanism includes two support tubes, and a sliding sleeve is provided on the support tube for sliding cooperation, and a receiving plate is fixedly connected to the side wall of the sliding sleeve, and a fourth hydraulic cylinder is provided on both sides of the receiving plate, and output ends are extended from both ends of the fourth hydraulic cylinder, and the output ends are rotatably connected to the receiving plate. The fourth hydraulic cylinder is actuated to control the rotation angle of the receiving plate. When the cover plate is lifted, the lower parts of the two receiving plates are moved away from each other through the action of the fourth hydraulic cylinder, and sufficient space can be reserved. When the cover plate passes over the receiving plate, the fourth hydraulic cylinder is actuated again to achieve the lower parts of the two receiving plates approaching each other. At this time, the cover plate is lowered and can be supported by the two receiving plates. At the same time, this structure can also be used to support the material rack.

[0011] Preferably, a push-pull rod is inserted into the support tube, and two stop rods are fixedly connected to the push-pull rod, and the two stop rods extend from a preset opening on the support tube and clamp the sliding sleeve. By pulling the push-pull rod, the position of the receiving plate on the support tube can be changed.

[0012] Preferably, the receiving mechanism further comprises a third hydraulic cylinder, the third hydraulic cylinder is fixedly connected to the lower side wall of the box body, and an output end extending from one end of the third hydraulic cylinder is fixedly connected to the end of the push-pull rod. The third hydraulic cylinder is actuated to operate the push-pull rod.

[0013] Preferably, a track is provided at the upper end of the heat treatment furnace, and rollers are provided at the lower part of the box body, and the rollers are matched on the track, so that the box body can move at the upper end of the heat treatment furnace.

[0014] Preferably, the upper end of the box is fixedly connected to a driving motor, the output end of the driving motor and the rotating shaft on the roller are fixedly connected to a pulley, and a transmission belt is sleeved on the pulley. The driving motor is started, and the box is moved through the pulley and the pulley transmission, and the pulley and the transmission belt are preferably of the type of sprocket and chain.

[0015] The beneficial effects of the present invention are as follows: 1. A box body is provided, and a cover plate is provided at the upper end of the heat treatment furnace. During the process of taking and placing the workpiece, the covering of the box body can reduce the heat loss. At the same time, multiple cover plates are provided, so that multiple batches of workpieces can be heat treated.

[0016] 2. A first tooling and a second tooling are provided, which have a simple structure and are inserted in a manner such that the telescopic rod is fitted in the oblique groove to achieve a stable connection between the two. When the telescopic rod is fitted in the vertical groove, the first tooling and the second tooling can be separated. A purely mechanical structure is adopted and can be used normally under high temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the receiving mechanism of the present invention; Figure 3 It is a partial schematic diagram of the lower support pipe of the receiving mechanism of the present invention; Figure 4 It is a three-dimensional schematic diagram of the material rack of the present invention; Figure 5 It is an exploded schematic diagram of the first tooling of the present invention; Figure 6 is a three-dimensional schematic diagram of a first hydraulic cylinder of the present invention; Figure 7 It is an exploded schematic diagram of the second tooling of the present invention; Figure 8 It is a schematic diagram of the plug board of the second tooling of the present invention.

[0018] List of reference numerals: 1. Heat treatment furnace; 2. Track; 3. Box; 4. Pulley; 5. Transmission belt; 6. Driving motor; 7. Undertaking mechanism; 8. Roller; 9. Cover plate; 10. First tooling; 11. First hydraulic cylinder; 12. Second hydraulic cylinder; 13. Material rack; 14. Second tooling; 71. The third hydraulic cylinder; 72. The fourth hydraulic cylinder; 73. The support tube; 74. The sliding sleeve; 75. The receiving plate; 76. The push-pull rod; 77. The stopper rod; 101. The first inclined plane; 102. The first spring; 103. The U-shaped member; 104. The fixing block; 105. The second inclined plane; 106. The vertical groove; 107. The inclined groove; 141. The telescopic rod; 142. The sliding hole; 143. The limiting column; 144. The second spring; 145. The insert plate; 146. The third inclined plane; 147. The fourth inclined plane. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Embodiment 1

[0020] Combination Figure 1 , Figure 4 and Figure 6 As shown, a clamping and placing device for heat treatment of workpieces includes a heat treatment furnace 1. The heat treatment furnace 1 is a rectangular parallelepiped structure. A box body 3 is movably arranged at the upper end of the heat treatment furnace 1. The side profile of the box body 3 is "L"-shaped, and the middle parts of the two upper end faces of the box body 3 are respectively fixedly connected with a first hydraulic cylinder 11 and a second hydraulic cylinder 12, and the output ends extending from the lower parts of the first hydraulic cylinder 11 and the second hydraulic cylinder 12 are fixedly connected with a second tooling 14. A plurality of cover plates 9 are equidistantly arranged at the upper end of the heat treatment furnace 1. The lower end side wall of the cover plate 9 is in an inclined state, that is, the cover plate 9 has a structure of a larger upper part and a smaller lower part. The opening of the heat treatment furnace 1 and the cover plate 9 are prevented from falling off after the cover plate 9 is covered. A material rack 13 is arranged inside the heat treatment furnace 1. The material rack 13 can be exposed by opening the cover plate 9. The material rack 13 is designed to be resistant to high temperatures and is used to place workpieces for heat treatment. The middle parts of the upper ends of the cover plate 9 and the material rack 13 are fixedly connected with a first tooling 10. After the first tooling 10 and the second tooling 14 are matched, the second tooling 14 is pulled up to lift the first tooling 10 below and the connected components.

[0021] Furthermore, a loading and unloading area of ​​a material rack 13 is provided at one end of the heat treatment furnace 1 .

[0022] like Figure 5As shown, the first tool 10 includes a fixed block 104, which is a rectangular parallelepiped structure. A U-shaped member 103 is slidably provided inside the fixed block 104. The inner wall of the U-shaped member 103 is provided with a vertical groove 106 and an inclined groove 107, and the lower part of the inclined groove 107 extends to the lower part of the vertical groove 106. Here, at the intersection of the inclined groove 107 and the vertical groove 106, the depth of the vertical groove 106 is greater than the depth of the inclined groove 107. Figure 7 As shown, the second tooling 14 includes an insert plate 145, and telescopic rods 141 extend from both sides of the insert plate 145. A second spring 144 is arranged between the two telescopic rods 141. Under the action of the second spring 144, the telescopic rod 141 is kept in an extended state. Here, the second spring 144 is made of a high temperature resistant material, such as GH5605.

[0023] Combination Figure 5 , Figure 7 and Figure 8 As shown, the bottom wall of the U-shaped member 103 is the first inclined surface 101, the lower end surface of the insert plate 145 is the third inclined surface 146, and the telescopic rod 141 is fitted in the inclined groove 107. As the insert plate 145 moves downward, the third inclined surface 146 squeezes the first inclined surface 101, so that the U-shaped member 103 slides, and the telescopic rod 141 slides along the inclined groove 107 into the vertical groove 106. This is the process of the first tooling 10 and the second tooling 14 being separated.

[0024] When the first tooling 10 and the second tooling 14 are matched, it is only necessary to insert the plug plate 145 into the middle of the U-shaped part 103, and the telescopic rod 141 is matched with the upper part of the inclined groove 107. When disengaging, the above operation is performed, the telescopic rod 141 is pressed into the vertical groove 106, and then the second tooling 14 is lifted up to complete the disengagement. In the above: at the intersection of the inclined groove 107 and the vertical groove 106, the depth of the vertical groove 106 is greater than the depth of the inclined groove 107, the purpose of which is to prevent the telescopic rod 141 from retreating into the inclined groove 107, and it is noted that the upper inner wall of the vertical groove 141 smoothly transitions to the inner wall of the U-shaped part 103, thereby realizing the disengagement of the telescopic rod 141 and the vertical groove 106.

[0025] like Figure 5 As shown, a first spring 102 is disposed on one side of the U-shaped member 103, and the first spring 102 is disposed close to the inclined slot 107, and the other end of the first spring 102 abuts against the inner wall of the fixing block 104. The material of the first spring 102 is the same as that of the second spring 144, and both are high temperature resistant. The first spring 102 functions as a limiter for the U-shaped member 103, ensuring that the telescopic rod 141 can fit into the inclined slot 107 after the plug plate 145 fits into the U-shaped member 103.

[0026] Combination Figure 5 , Figure 7 and Figure 8As shown, an opening is provided in the middle of the upper end of the fixing block 104, and the opening is a second inclined surface 105. Fourth inclined surfaces 147 are provided on both sides of the lower end of the insert plate 145, and the second inclined surface 105 and the fourth inclined surface 147 cooperate with each other. When the insert plate 145 is inserted into the interior of the first tooling 10, the setting of the second inclined surface 105 and the fourth inclined surface 147 improves the accuracy of insertion.

[0027] like Figure 7 As shown, a sliding hole 142 is provided on the telescopic rod 141, and a limiting column 143 is inserted in the sliding hole 142. The end of the limiting column 143 is fixedly connected to the plug plate 145. Due to the action of the second spring 144, the telescopic rods 141 at both ends extend outward, wherein the limiting column 143 serves to prevent the telescopic rod 141 from falling off, and after the limiting column 143 blocks the telescopic rod 141, the lengths of the two telescopic rods 141 extending outward are kept consistent. One end face of the telescopic rod 141 is inclined to facilitate cooperation with the second inclined surface 105. During the downward pressing process, the telescopic rod 141 is retracted into the plug plate 145. At the same time, the limiting column 143 also serves to prevent the telescopic rod 141 from rotating.

[0028] like Figure 1 As shown, a track 2 is arranged at the upper end of the heat treatment furnace 1, and two tracks 2 are arranged. A roller 8 is arranged at the lower part of the box body 3, and the roller 8 is matched on the track 2, and at least four rollers 8 are arranged.

[0029] A driving motor 6 is fixedly connected to the upper end of the box body 3, and a pulley 4 is fixedly connected to the output end of the driving motor 6 and the rotating shaft on the roller 8. A transmission belt 5 is sleeved on the pulley 4. The driving motor 6 is started, and the roller 8 is driven to rotate through the pulley 4 and the transmission belt 5. Considering that the equipment runs under high temperature regulation, the driving motor 6 can be replaced by a hydraulic motor, and the pulley 4 and the transmission belt 5 can be replaced by sprockets or chains.

[0030] In the above, when the equipment is in use, the box body 3 moves to the top of the material rack 13 to be taken, and then the second hydraulic cylinder 12 is actuated, and the cover plate 9 is lifted through the cooperation of the first tooling 10 and the second tooling 14, and the box body 3 is actuated again, and the first hydraulic cylinder 11 moves to the top of the material rack 13, and then the first hydraulic cylinder 11 is started, and again, through the cooperation of the first tooling 10 and the second tooling 14, the material rack 13 is lifted, and when the cover plate 9 or the material rack 13 is released, the second tooling 14 moves downward in advance until it cannot slide down, and then the second tooling 14 is lifted to achieve detachment. Embodiment 2

[0031] This embodiment is based on the first embodiment and has the following additional structure: Figure 1 , Figure 2 and Figure 3As shown, a receiving mechanism 7 is provided at the lower part of the box body 3, and the receiving mechanism 7 includes two support tubes 73, and a sliding sleeve 74 is provided on the support tube 73 for sliding cooperation, that is, the sliding sleeve 74 can slide on the support tube 73 to change its position, and a receiving plate 75 is fixedly connected to the side wall of the sliding sleeve 74, and a fourth hydraulic cylinder 72 is provided on both sides of the receiving plate 75, and output ends are extended at both ends of the fourth hydraulic cylinder 72, and the output end and the receiving plate 75 are rotatably connected to control the elongation of the fourth hydraulic cylinder 72, and then control the rotation of the receiving plate 75 to achieve the spacing between the lower ends of the two receiving plates 75. When the spacing is sufficient, the cover plate 9 and the material rack 13 can be allowed to pass through, and when the spacing is too small, it is not allowed to pass through. If the cover plate 9 and the material rack 13 are above the receiving plate 75, they can be supported.

[0032] A push-pull rod 76 is inserted into the interior of the support tube 73, and two blocking rods 77 are fixedly connected to the push-pull rod 76. The two blocking rods 77 extend from preset openings on the support tube 73 and clamp the sliding sleeve 74. By operating the push-pull rod 76, the position of the receiving plate 75 on the support tube 73 can be changed.

[0033] The receiving mechanism 7 further includes a third hydraulic cylinder 71, which is fixedly connected to the lower side wall of the box body 3, and an output end extending from one end of the third hydraulic cylinder 71 is fixedly connected to the end of the push-pull rod 76. The third hydraulic cylinder 71 is used to drive the push-pull rod 76 to move axially.

[0034] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. A workpiece heat treatment holding and placing device, comprising a heat treatment furnace (1), characterized in that: A box body (3) is movably arranged at the upper end of the heat treatment furnace (1), the side profile of the box body (3) is "L"-shaped, and the middle parts of the two upper end surfaces of the box body (3) are respectively fixedly connected to a first hydraulic cylinder (11) and a second hydraulic cylinder (12), and the output ends extending from the lower parts of the first hydraulic cylinder (11) and the second hydraulic cylinder (12) are both fixedly connected to a second tool (14), a plurality of cover plates (9) are equidistantly arranged at the upper end of the heat treatment furnace (1), a material rack (13) is arranged inside the heat treatment furnace (1), and the middle parts of the upper ends of the cover plate (9) and the material rack (13) are both fixedly connected to a first tool (10); The first tooling (10) comprises a fixed block (104), a U-shaped piece (103) is slidably arranged inside the fixed block (104), a vertical groove (106) and an inclined groove (107) are arranged on the inner wall of the U-shaped piece (103), and the lower part of the inclined groove (107) extends to the lower part of the vertical groove (106), and the second tooling (14) comprises a plug plate (145), telescopic rods (141) are extended from both sides of the plug plate (145), and a second spring (144) is arranged between the two telescopic rods (141); The bottom wall of the U-shaped member (103) is a first inclined surface (101), the lower end surface of the insert plate (145) is a third inclined surface (146), and the telescopic rod (141) is fitted in the inclined groove (107). As the insert plate (145) moves downward, the third inclined surface (146) presses the first inclined surface (101), causing the U-shaped member (103) to slide, so that the telescopic rod (141) slides along the inclined groove (107) into the vertical groove (106).

2. The workpiece heat treatment clamping and placing device according to claim 1, characterized in that: A first spring (102) is provided on one side of the U-shaped member (103), and the first spring (102) is arranged close to the inclined groove (107), and the other end of the first spring (102) abuts against the inner wall of the fixing block (104).

3. The workpiece heat treatment clamping and placing device according to claim 1, characterized in that: An opening is provided in the middle of the upper end of the fixing block (104), the opening being a second inclined surface (105), and fourth inclined surfaces (147) are provided on both sides of the lower end of the plug plate (145), and the second inclined surface (105) and the fourth inclined surface (147) cooperate with each other.

4. The workpiece heat treatment clamping and placing device according to claim 1, characterized in that: The telescopic rod (141) is provided with a sliding hole (142), a limiting column (143) is inserted into the sliding hole (142), an end of the limiting column (143) is fixedly connected to the plug plate (145), and one end surface of the telescopic rod (141) is inclined.

5. The workpiece heat treatment clamping and placing device according to claim 1, characterized in that: A receiving mechanism (7) is provided at the lower part of the box body (3), and the receiving mechanism (7) comprises two support tubes (73), a sliding sleeve (74) is slidably provided on the support tube (73), a receiving plate (75) is fixedly connected to the side wall of the sliding sleeve (74), and a fourth hydraulic cylinder (72) is provided on both sides of the receiving plate (75), and output ends are extended from both ends of the fourth hydraulic cylinder (72), and the output ends are rotatably connected to the receiving plate (75).

6. The workpiece heat treatment clamping and placing device according to claim 5, characterized in that: A push-pull rod (76) is inserted into the interior of the support tube (73), and two blocking rods (77) are fixedly connected to the push-pull rod (76). The two blocking rods (77) extend from openings preset on the support tube (73) and clamp the sliding sleeve (74).

7. The workpiece heat treatment clamping and placing device according to claim 6, characterized in that: The receiving mechanism (7) further comprises a third hydraulic cylinder (71), wherein the third hydraulic cylinder (71) is fixedly connected to the lower side wall of the box body (3), and an output end extending from one end of the third hydraulic cylinder (71) is fixedly connected to the end of the push-pull rod (76).

8. The workpiece heat treatment clamping and placing device according to claim 1, characterized in that: A track (2) is provided at the upper end of the heat treatment furnace (1), and a roller (8) is provided at the lower part of the box (3), wherein the roller (8) is fitted on the track (2).

9. The workpiece heat treatment clamping and placing device according to claim 8, characterized in that: The upper end of the box body (3) is fixedly connected to a drive motor (6), the output end of the drive motor (6) and the rotating shaft on the roller (8) are both fixedly connected to a pulley (4), and a transmission belt (5) is sleeved on the pulley (4).

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