Internal and external double-action multi-position efficient shaping mechanism clamp

Abstract

The utility model provides an internal and external double-action multi-position efficient shaping mechanism clamp which is convenient to operate and high in shaping efficiency and quality. The mold comprises an upper mold plate, a middle mold plate and a lower mold plate, the upper mold plate and the middle mold plate are connected through a first guide column, the middle mold plate and the lower mold plate are connected through a second guide column, a falling-off rod is further arranged between the middle mold plate and the upper mold plate, and the bottom end of the falling-off rod penetrates through the middle mold plate and then is provided with a limiting shaft; a conical rod is installed on the lower die plate, the top end of the conical rod penetrates through a positioning groove formed in the middle die plate and then extends out of the middle die plate, and an inner supporting block is placed in the positioning groove. Two wedge-shaped push blocks are fixedly installed at the bottom of the upper die plate, the bottom ends of the two wedge-shaped push blocks extend into the middle die plate, shaping push blocks are clamped to the inclined faces of one sides of the two wedge-shaped push blocks respectively and can slide along the inclined faces of one sides of the wedge-shaped push blocks respectively, and the pressing ends of the two shaping push blocks point to the two adjacent inner supporting blocks respectively. And L-shaped positioning blocks mounted on the middle template are arranged outside the other two adjacent inner supporting blocks in a surrounding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-position shaping of special-shaped thin-walled parts, in particular to an internal and external double-action multi-position efficient shaping mechanism clamp. Background Art

[0002] During production, the inner square, outer square and external protruding parts of special-shaped shell parts are easily deformed due to casting shrinkage. Therefore, the shape and relative position of special-shaped shell parts need to be shaped to the shape size and position size required by the process through a shaping process; the conventional shaping process generally uses a single side to be hammered by hand to shape the straightness, and then the adjacent sides are hammered in the diagonal direction to shape the verticality, to ensure that the inner and outer square shapes of the shell are rectangles, rather than parallelograms; after the square shaping of the part shell is completed, the protruding part of the part is knocked to ensure its relative position with the square shell; this conventional shaping method requires high skills and experience of employees, resulting in slow shaping efficiency and low quality. Summary of the invention

[0003] In view of the shortcomings of the existing shaping process that the employees' skills and experience are relatively high, resulting in slow shaping efficiency and low quality, the utility model provides an internal and external double-action multi-position high-efficiency shaping mechanism clamp, which is easy to operate and has high shaping efficiency and quality.

[0004] An internal and external double-action multi-position efficient shaping mechanism clamp, characterized in that: it includes an upper template, a middle template and a lower template, the upper template and the middle template are connected by a first guide column, the middle template and the lower template are connected by a second guide column, a drop rod is also provided between the middle template and the upper template, and a limiting shaft is provided after the bottom end of the drop rod passes through the middle template; the lower template is installed with a tapered rod, the top end of the tapered rod passes through the positioning groove provided in the middle template and then extends out of the middle template, an inner support block is placed in the positioning groove, and the top end of the inner support block is higher than the top surface of the middle template; the upper template A wedge-shaped push block is fixedly installed at the bottom, and there are two wedge-shaped push blocks. The bottom ends of the two wedge-shaped push blocks are respectively extended into the middle template, and the inclined surfaces on one side of the two wedge-shaped push blocks are respectively clamped with shaping push blocks. The two shaping push blocks can slide along the inclined surface on one side of the wedge-shaped push blocks respectively, and the clamping ends of the two shaping push blocks point to two adjacent inner support blocks respectively. The other two adjacent inner support blocks are surrounded by L-shaped positioning blocks installed on the middle template. The clamping ends of the two shaping push blocks, the inner side surfaces of the L-shaped positioning blocks, and the inner support blocks constitute the inner and outer directions of the shell of the thin-walled special-shaped shell parts.

[0005] It is further characterized by:

[0006] There are four inner support blocks, which are placed with the cone rod as the center. The top shapes of the four inner support blocks are respectively one of the rectangular blocks cut along two diagonal lines. The sides of the four inner support blocks close to the cone rod are respectively arc surfaces that match the taper of the side surface of the cone rod. The sides of the tops of the four inner support blocks away from the cone rod are respectively one side of the rectangular block.

[0007] The clamping end of one of the shaping push blocks is a special shape that matches the shape of the thin-walled special-shaped shell part, and the special-shaped clamping end of one of the shaping push blocks and one end of the L-shaped positioning block form a clamp for the protruding portion of the thin-walled special-shaped shell part;

[0008] The bottom end of the first guide column is fixedly connected to the middle template, and the top end is slidably connected to the upper template; the bottom end of the second guide column is fixedly connected to the lower template, and the top end is slidably connected to the middle template;

[0009] The top end of the shedding rod is fixedly connected to the upper template, and the bottom end is slidably connected to the middle template, and the middle template is press-fitted on the limiting shaft of the shedding rod;

[0010] The wedge-shaped push block includes a square block at the top and a wedge-shaped block at the bottom, the square block and the wedge-shaped block are slidably connected via a sliding plate, and the distance between the square block and the wedge-shaped block can be adjusted via the sliding plate;

[0011] A cushion block installed on the lower template is provided below the limiting shaft;

[0012] The middle template is also equipped with a stopper;

[0013] The top end of the upper template is fixedly connected to the hydraulic press top rod through a pressing plate.

[0014] After the utility model is adopted, the clamping ends of the two shaping push blocks, the inner side surface of the L-shaped positioning block, and the rectangular inner support block constitute the clamping of the shell of the thin-walled special-shaped shell part in both inner and outer directions. The shell of the thin-walled special-shaped shell part can be shaped by the clamping force to ensure that its inner and outer shapes are both rectangular; one end of the L-shaped positioning block and the special-shaped clamping end of the shaping push block realize the clamping and shaping of the protruding part of the thin-walled special-shaped shell part to ensure the relative position of the protruding part and the shell, standardize the shaping fixture and process, and ensure a high shaping quality. The staff only needs to place the parts and then turn on the hydraulic press switch. The shaping process is convenient and fast, which greatly improves the shaping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axonometric view of the utility model;

[0016] Figure 2 It is a schematic diagram of the main view of the structure of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0018] Figure 4 for Figure 2 A schematic diagram of a cross-section taken along the BB direction;

[0019] Figure 5 It is a schematic diagram of the structure of thin-walled special-shaped shell parts. DETAILED DESCRIPTION

[0020] See Figures 1 to 5 , an internal and external double-action multi-position efficient shaping mechanism fixture, which includes an upper template 1, a middle template 2 and a lower template 3. The upper template 1 and the middle template 2 are connected by a first guide column 41, and the middle template 2 and the lower template 3 are connected by a second guide column 42. The bottom end of the first guide column 41 is fixedly connected to the middle template 2, and the top end is slidably connected to the upper template 1. The bottom end of the second guide column 42 is fixedly connected to the lower template 3, and the top end is slidably connected to the middle template 2. A drop rod 5 is also provided between the middle template 2 and the upper template 1. A limit shaft 6 is provided at the bottom end of the drop rod 5 after passing through the middle template 2. A cushion block 7 installed on the lower template 3 is provided below the limit shaft 6. The cushion block 7 is used to limit the moving distance of the middle template 2.

[0021] The lower template 3 is installed with a cone rod 8, the top of the cone rod 8 passes through the positioning groove 9 provided in the middle template 2 and then extends out of the middle template 2. Four inner support blocks 10 are placed in the rectangular positioning groove 9 with the cone rod 8 as the center. The top shape of the four inner support blocks 10 is one of the rectangular blocks cut along two diagonal lines. The side of the inner support block 10 close to the cone rod 8 is an arc surface that matches the taper of the side of the cone rod 8. The side of the top of the four inner support blocks 10 away from the cone rod 8 is a side of the rectangular block. The top of the inner support block 10 is higher than the top surface of the middle template 2; a wedge-shaped push block 11 is fixedly installed at the bottom of the upper template 1. The wedge-shaped push block 11 There are two, the bottom ends of the two wedge-shaped push blocks 11 extend into the middle template 2 respectively, and the two shaping push blocks 12 are respectively clamped on the inclined surfaces on one side of the two wedge-shaped push blocks 11. The two shaping push blocks 12 can slide along the inclined surfaces on one side of the wedge-shaped push blocks 11 respectively, and the clamping ends of the two shaping push blocks 12 point to two adjacent inner support blocks 10 respectively. The other two adjacent inner support blocks 10 are surrounded by L-shaped positioning blocks 13 installed on the middle template 2. The clamping ends of the two shaping push blocks 12, the inner side surfaces of the L-shaped positioning blocks 13, and the inner push blocks 10 constitute a two-way clamping of the shell 141 of the thin-walled special-shaped shell part 14 in both inside and outside directions.

[0022] The clamping end of one of the shaping push blocks 12 is shaped to match the shape of the thin-walled special-shaped shell part 14, and the special-shaped clamping end of one of the shaping push blocks 12 and one end of the L-shaped positioning block 13 clamp the extension portion 142 of the thin-walled special-shaped shell part 14.

[0023] The top end of the shedding rod 5 is fixedly connected to the upper template 1 , and the bottom end is slidably connected to the middle template 2 . The middle template 2 is press-fitted onto the limiting shaft 6 of the shedding rod 5 .

[0024] The wedge-shaped push block 11 includes a top block 111 and a bottom wedge-shaped block 112 . The block 111 and the wedge-shaped block 112 are slidably connected via a sliding plate 113 , and the distance between the block 111 and the wedge-shaped block 112 can be adjusted via the sliding plate 113 .

[0025] The middle template 2 is also provided with a stopper 15 for guiding the wedge-shaped push block 11 .

[0026] The top end of the upper template 1 is fixedly connected to the hydraulic press top rod (not shown) through a pressing plate.

[0027] The shell 141 of the thin-walled special-shaped shell part 14 is sleeved on the top of the inner support block 10, and the protruding portion 142 of the thin-walled special-shaped shell part 14 is placed between the special-shaped pressing end of the shaping push block 12 and the L-shaped positioning block 13 to complete the positioning, and then the hydraulic press is started, and the hydraulic press push rod pushes the upper template 1 to move downward, and the upper template 1 drives the shedding rod 5 to move downward, and the middle template 2 pressed on the limit shaft 6 moves downward together with the limit shaft 6 due to gravity, and the distance between the middle template 2 and the lower template 3 is reduced, and the tapered rod 8 pushes the inner support block 10 to slide outward until the inner support block 10 presses the shell 141 tightly. The inner wall, at this time, the gravity of the middle template 2 is balanced with the friction force between the inner support block 10 and the shell 141, the middle template 2 stops moving down, the upper template 1 continues to move down, the distance between the upper template 1 and the middle template 2 is reduced, and the wedge-shaped push block 11 pushes the shaping push block 12 until the bottom surface of the block 111 of the wedge-shaped push block 11 is in close contact with the top surface of the wedge-shaped block 112. At this time, the clamping end of the shaping push block 12 presses the outer wall of the shell 141 and the protruding part 142 of the thin-walled special-shaped shell part 14, thereby realizing the clamping of the shell 141 of the thin-walled special-shaped shell part in both inside and outside directions and the clamping of the protruding part 142. Keep this state for at least 5 seconds, so that the clamping force can reshape the thin-walled special-shaped shell part 14. The top of the rectangular inner support block 10 ensures that the inner cavity of the shell 141 is rectangular in shape. The inner side surface of the L-shaped positioning block 13 and the pressing end of the shaping push block 12 ensure that the outer wall of the shell 141 is rectangular in shape. One end of the L-shaped positioning block 13 can ensure the relative position between the extension 142 and the shell 141. After the shaping is completed, press the retract button, the hydraulic press top rod drives the upper template 1 to move up, and the upper template 1 drives the middle template 2 to move up through the limit shaft 6 of the shedding rod 5. The inner support block 10 is separated from the cone rod 8, and the inner support block 10 and the inner cavity of the shell 141 are loose, and the parts can be taken out.

Claims

1. An internal and external double-action multi-position efficient shaping mechanism fixture, characterized by: It comprises an upper template, a middle template and a lower template, wherein the upper template and the middle template are connected by a first guide column, the middle template and the lower template are connected by a second guide column, a drop rod is also provided between the middle template and the upper template, a limiting shaft is provided after the bottom end of the drop rod passes through the middle template, a pad installed on the lower template is provided below the limiting shaft; a tapered rod is installed on the lower template, the top end of the tapered rod passes through the positioning groove provided in the middle template and then extends out of the middle template, an inner support block is placed in the positioning groove, and the top end of the inner support block is higher than the top surface of the middle template; the bottom of the upper template A wedge-shaped push block is fixedly installed, and there are two of the wedge-shaped push blocks. The bottom ends of the two wedge-shaped push blocks are respectively extended into the middle template. The inclined surfaces on one side of the two wedge-shaped push blocks are respectively clamped with shaping push blocks. The two shaping push blocks can slide along the inclined surface on one side of the wedge-shaped push blocks respectively. The clamping ends of the two shaping push blocks point to two adjacent inner support blocks respectively. The other two adjacent inner support blocks are surrounded by L-shaped positioning blocks installed on the middle template. The clamping ends of the two shaping push blocks, the inner side surfaces of the L-shaped positioning blocks, and the inner support blocks constitute the inner and outer directions of the shell of the thin-walled special-shaped shell parts.

2. According to claim 1, the fixture with an internal and external double action and multiple positions and high efficiency shaping mechanism is characterized by: There are four inner support blocks, which are placed with the cone rod as the center. The top shapes of the four inner support blocks are respectively one of the rectangular blocks cut along two diagonal lines. The sides of the four inner support blocks close to the cone rod are respectively arc surfaces that match the taper of the side faces of the cone rod, and the sides of the tops of the four inner support blocks away from the cone rod are respectively one side face of the rectangular block.

3. The internal and external double-action multi-position efficient shaping mechanism fixture according to claim 1 or 2, characterized in that: The clamping end of one of the shaping push blocks is shaped to match the shape of the thin-walled special-shaped shell part, and the special-shaped clamping end of one of the shaping push blocks and one end of the L-shaped positioning block form a clamp for the protruding portion of the thin-walled special-shaped shell part.

4. The internal and external double-action multi-position efficient shaping mechanism fixture according to claim 1 or 2, characterized in that: The bottom end of the first guide column is fixedly connected to the middle template, and the top end is slidably connected to the upper template. The bottom end of the second guide column is fixedly connected to the lower template, and the top end is slidably connected to the middle template.

5. According to claim 3, the fixture of the internal and external double-action multi-position high-efficiency shaping mechanism is characterized by: The bottom end of the first guide column is fixedly connected to the middle template, and the top end is slidably connected to the upper template. The bottom end of the second guide column is fixedly connected to the lower template, and the top end is slidably connected to the middle template.

6. The internal and external double-action multi-position high-efficiency shaping mechanism fixture according to claim 4, characterized in that: The top end of the shedding rod is fixedly connected to the upper template, and the bottom end is slidably connected to the middle template. The middle template is pressed onto the limiting shaft of the shedding rod.

7. The internal and external double-action multi-position high-efficiency shaping mechanism fixture according to claim 6, characterized in that: The wedge-shaped push block comprises a square block at the top and a wedge-shaped block at the bottom. The square block and the wedge-shaped block are slidably connected via a sliding plate, and the distance between the square block and the wedge-shaped block can be adjusted via the sliding plate.

8. The internal and external double-action multi-position high-efficiency shaping mechanism fixture according to claim 7, characterized in that: A cushion block installed on the lower template is provided below the limiting shaft.

9. The internal and external double-action multi-position high-efficiency shaping mechanism fixture according to claim 8, characterized in that: The middle template is also equipped with a stopper.

10. The internal and external double-action multi-position high-efficiency shaping mechanism fixture according to claim 9, characterized in that: The top end of the upper template is fixedly connected to the hydraulic press top rod through a pressing plate.

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