Press machine broaching tool

Abstract

The utility model relates to the technical field of broaching of press machines, and discloses a broaching tool of a press machine, which comprises a main body assembly, a lower clamping block, an upper clamping block and an air cylinder, the upper clamping block is arranged above the lower clamping block, and the air cylinder is movably connected with the upper clamping block; and the adjusting assembly is located in the lower clamping block and comprises an adjusting piece, the adjusting piece comprises a first arc-shaped plate, a first moving column, an abutting plate, a rotating column and a fixing sleeve, and a clamping groove is formed in the lower clamping block. The pipe flaring tool has the advantages that by arranging the adjustable clamp, pipes with different pipe diameters can be effectively clamped within a certain size range, meanwhile, the length of the clamped portion of the pipe can be adjusted through the tool, the requirement for different flaring lengths can be flexibly met, and the pipe flaring tool is suitable for large-scale popularization and application. Therefore, it is avoided that a large number of clamps of different specifications are purchased for pipelines with different sizes and flaring length requirements, the use flexibility of the clamps is improved, time waste caused by clamp replacement is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of press hole enlargement technology, and in particular to a press hole enlargement tooling. Background Technology

[0002] Press reaming is a process that uses a press to enlarge the diameter of a pre-drilled hole in a workpiece. In current pipe processing, using a press to expand pipes is a common technique. The working principle involves clamping the pipe to be expanded, then activating a hydraulic system to bring the reaming die closer to the pipe, applying pressure and causing deformation to achieve the reaming operation. However, existing fixtures often only accommodate pipes of specific sizes. When faced with pipes of different sizes requiring expansion, operators must change to the appropriate fixtures. This frequent fixture changes not only consume significant time and labor costs but also severely impact production efficiency. Utility Model Content

[0003] In view of the problems existing in the above and / or existing press reaming tooling, this utility model is proposed.

[0004] Therefore, the problem that this utility model aims to solve is that the press hole enlargement requires frequent clamp changes to meet the needs of pipe fittings of different sizes.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a press hole enlarging tool, which includes a main body component, including a lower clamping block, an upper clamping block and a cylinder, wherein the upper clamping block is disposed above the lower clamping block and the cylinder is movably connected to the upper clamping block;

[0006] An adjusting assembly, located within the lower clamping block, includes an adjusting member comprising a first arc-shaped plate, a first movable column, a stop plate, a rotating column, and a fixed sleeve. The lower clamping block has a clamping groove, the first arc-shaped plate is disposed within the clamping groove, the first movable column is fixed to the first arc-shaped plate, the lower clamping block has a first movable groove, the first movable column slides within the first movable groove, the lower clamping block has a sliding groove, the stop plate slides within the sliding groove, the rotating column is bearing-connected to the stop plate, and the fixed sleeve is fixed to the lower clamping block, with the rotating column threadedly connected to the fixed sleeve.

[0007] As a preferred embodiment of the press hole enlarging tooling described in this utility model, the fixed sleeve is provided with a spiral groove, and the rotating column is provided with a thread at one end near the fixed sleeve, wherein the spiral groove engages with the thread on the rotating column.

[0008] As a preferred embodiment of the press hole expansion tooling described in this utility model, wherein: one end of the first moving column is fixed with a first spring, and the other end of the first spring is fixed to the inner wall of the first moving groove.

[0009] As a preferred embodiment of the press hole enlarging tooling of this utility model, a fixing block is fixed on one side of the abutment plate, a second moving groove is provided in the fixing block, a second moving block is provided in the second moving groove, and a second arc-shaped plate is fixed on the second moving block.

[0010] As a preferred embodiment of the press hole expansion tooling of the present invention, the adjusting component further includes a second spring, the two ends of which are fixed to the inner wall of the second moving block and the second moving groove.

[0011] As a preferred embodiment of the press reaming fixture of this utility model, the adjusting component further includes a locking element disposed on one side of the first moving column, including a locking block and a third spring. A sliding groove is provided on the lower clamping block, the locking block slides in the sliding groove, the third spring is fixed on one side of the locking block, and the first moving column is provided with a locking groove.

[0012] As a preferred embodiment of the press hole enlarging tooling described in this utility model, the abutment plate is composed of two parts, one part being semi-circular and the other part being rectangular. The rectangular part of the abutment plate slides in the groove, and the semi-circular part of the abutment plate slides in the clamping groove.

[0013] In a preferred embodiment of the press hole-expanding fixture of the present invention, two first movable columns are fixed on the first arc plate, and the number of first springs is the same as the number of first movable columns.

[0014] As a preferred embodiment of the press hole expansion fixture of the present invention, there are two sets of adjusting components, which are respectively located in the lower clamping block and the upper clamping block. A locking block is fixed on the abutment plate corresponding to the lower clamping block, and a locking groove is opened on the abutment plate corresponding to the upper clamping block. The locking block can engage with the locking groove.

[0015] As a preferred embodiment of the press reaming fixture of this utility model, the main component further includes a worktable, a fixed frame, and a hydraulic reaming mechanism. The worktable is bolted to the lower clamping block, the fixed frame is fixed to the worktable, and the hydraulic reaming mechanism is disposed on the lower clamping block and fixed to the worktable.

[0016] The beneficial effects of this utility model are as follows: by setting an adjustable clamp, pipes of different diameters can be effectively clamped within a certain size range. At the same time, the length of the clamped part of the pipe can be adjusted, which can flexibly adapt to different flaring length requirements. This avoids purchasing a large number of clamps of different specifications for pipes of different sizes and flaring length requirements, improves the flexibility of clamp use, reduces the time wasted due to clamp replacement, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is an overall structural diagram of the reaming tooling for a press.

[0019] Figure 2 Another perspective view of the overall structure of the reaming tooling for a press.

[0020] Figure 3 This is a structural diagram of the lower clamping block of the reaming tooling for a press.

[0021] Figure 4 This is a cross-sectional view of the lower clamping block of the reaming tooling for a press.

[0022] Figure 5 For press reaming tooling Figure 4 Enlarged view of the structure at point A in the middle.

[0023] Figure 6 For press reaming tooling Figure 4 Enlarged view of the structure at point B in the middle.

[0024] Figure 7 This is a cross-sectional view of the backing plate of the reaming tooling for a press.

[0025] Figure 8 This is a cross-sectional view of the first moving block of the reaming tooling for a press.

[0026] Figure 9 For press reaming tooling Figure 8 Enlarged view of the structure at point C. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1

[0031] Reference Figures 1-9 This is the first embodiment of the present utility model. This embodiment provides a press hole expansion tooling. The press hole expansion tooling includes a main body component 100, including a lower clamping block 101, an upper clamping block 102 and a cylinder 103. The upper clamping block 102 is disposed above the lower clamping block 101, and the cylinder 103 is movably connected to the upper clamping block 102.

[0032] The cylinder 103 drives the upper clamping block 102 to approach the lower clamping block 101. Through the cooperation of the lower clamping block 101 and the upper clamping block 102, the pipe is clamped. A guide post 107 is fixed on the lower clamping block 101, and a guide groove 102-1 is opened on the upper clamping block 102. The guide post 107 is inserted into the guide groove 102-1. Through the cooperation of the two, it is ensured that the lower clamping block 101 and the upper clamping block 102 are always in the same coaxial position.

[0033] The adjustment assembly 200, located within the lower clamping block 101, includes an adjustment element 201 for clamping pipe fittings of different sizes.

[0034] The adjusting component 201 includes a first arc-shaped plate 201a, a first moving column 201b, a stop plate 201c, a rotating column 201d, and a fixing sleeve 201e. The lower clamping block 101 has a clamping groove 101-1 with a semi-circular cross-section. The pipe is placed in the clamping groove 101-1. The first arc-shaped plate 201a is disposed in the clamping groove 101-1 and contacts the surface of the pipe. The first moving column 201b is fixed on the first arc-shaped plate 201a and supports the first arc-shaped plate 201a. The lower clamping block 101 has a first moving groove 101-2, and the first moving column 201b slides in the first moving groove 101-2.

[0035] The lower clamping block 101 has a sliding groove 101-3. The abutment plate 201c slides in the sliding groove 101-3. When the pipe is placed in the clamping groove 101-1, one end of the pipe will contact the abutment plate 201c. The rotating column 201d is connected to the abutment plate 201c by a bearing. The fixed sleeve 201e is fixed on the lower clamping block 101. The rotating column 201d is threadedly connected to the fixed sleeve 201e. Through the cooperation between the fixed sleeve 201e and the rotating column 201d, the abutment plate 201c can slide in the sliding groove 101-3, thereby changing the position of the abutment plate 201c in the clamping groove 101-1, so as to adjust the length of the pipe being clamped.

[0036] Example 2

[0037] Reference Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0038] Specifically, the fixed sleeve 201e has a spiral groove 201f-1, and the rotating column 201d has a thread at one end near the fixed sleeve 201e. The spiral groove 201f-1 engages with the thread on the rotating column 201d. The lower clamping block 101 has a groove corresponding to the rotating column 201d, and the rotating column 201d can move along the groove. A handle 201l is fixed at one end of the rotating column 201d, and rotating the handle 201l can drive the rotating column 201d to rotate.

[0039] Rotating the rotating column 201d, through the cooperation of the fixed sleeve 201e, allows the rotating column 201d to move along the direction of the fixed sleeve 201e, thereby pushing the abutment plate 201c to move along the direction of the sliding groove 101-3, thereby changing the distance between the abutment plate 201c and the end face of the clamping groove 101-1, thereby adjusting the clamping length of the pipe fitting, and thus adjusting the length of the flared end of the pipe fitting.

[0040] Previously, the hydraulic punching stroke was adjusted to adapt to changes in the flaring distance, which may have required frequent replacement of some clamping components. By directly adjusting the length of the pipe being clamped, there is no need to adjust the hydraulic punching stroke, which makes the operation easier.

[0041] Specifically, a first spring 201f is fixed to one end of the first movable column 201b, and the other end of the first spring 201f is fixed to the inner wall of the first movable groove 101-2.

[0042] The first spring 201f is used to apply a continuous pushing force to the first moving column 201b and connect the first moving column 201b to the lower clamping block 101, ensuring that the first moving column 201b will not move downward due to its own weight when there is no other external force. The first spring 201f has a large elastic force. When the pipe is placed in the clamping groove 101-1 and contacts the first arc plate 201a, it ensures that its end face contacts the abutment plate 201c. Then, the cylinder 103 is activated, which drives the upper clamping block 102 to move downward. The upper clamping block 102 will apply a downward pushing force to the pipe, thereby compressing the first spring 201f. The first moving column 201b will move downward. At the same time, the first spring 201f will also apply a reverse pushing force to the first moving column 201b, so that the first arc plate 201a squeezes the pipe.

[0043] Specifically, a fixing block 201g is fixed to one side of the abutment plate 201c. A second moving groove 201g-1 is provided in the fixing block 201g. A second moving block 201h is provided in the second moving groove 201g-1. A second arc-shaped plate 201i is fixed on the second moving block 201h. The fixing block 201g is used to provide stable support for the second moving block 201h. The shape of the second arc-shaped plate 201i is the same as that of the first arc-shaped plate 201a, but its length is shorter than that of the first arc-shaped plate 201a. It is used to assist in clamping the pipe fitting and ensure that the pipe fitting can always be in a horizontal state, thereby ensuring the accuracy of the hole enlargement.

[0044] When the abutment plate 201c slides within the slide groove 101-3, the fixed block 201g, the second moving block 201h, and the second arc plate 201i will move synchronously, and the distance between the first arc plate 201a and the second arc plate 201i will shorten. When the abutment plate 201c moves to the end face of the slide groove 101-3 near the first arc plate 201a, the second arc plate 201i will fit against the first arc plate 201a. At this time, the length of the pipe clamped is the shortest. Conversely, when the hydraulic punching stroke is constant, the length expanded will be the longest.

[0045] Specifically, the adjusting component 201 also includes a second spring 201j, the two ends of which are fixed to the inner wall of the second moving block 201h and the second moving groove 201g-1.

[0046] The second spring 201j is used to apply a continuous pushing force to the second moving block 201h to ensure that the second moving block 201h will not move downward under the action of gravity in the absence of other external forces. At the same time, the second spring 201j is also used to reset the second moving block 201h.

[0047] Specifically, the adjustment component 200 also includes a locking element 202, which is disposed on one side of the first moving column 201b. The locking element 202 is used to lock the relative position of the first moving column 201b in the first moving groove 101-2 to ensure that the tube can still be stably clamped during the hole expansion process.

[0048] The locking component 202 includes a locking block 202a and a third spring 202b. A sliding groove 101-4 is provided on the lower clamping block 101. The locking block 202a slides in the sliding groove 101-4. One end of the locking block 202a is inclined. The third spring 202b is fixed to one side of the locking block 202a and applies a continuous pushing force to the locking block 202a. The first moving column 201b is provided with a locking groove 201b-1. There are multiple locking grooves 201b-1, and their shapes correspond to those of the locking block 202a. When the two are engaged, the position of the first moving column 201b is locked. At the same time, the first moving column 201b on the upper clamping block 102 will also perform the above process synchronously, so that the pipe can be stably clamped.

[0049] By tilting the device, when a larger pipe is placed in the clamping groove 101-1, the cylinder 103 is activated to move the upper clamping block 102 downward. Due to the larger size of the pipe, the first spring 201f is compressed, causing the first moving column 201b to move downward along the first moving groove 101-2. At this time, the inclined surface of the locking block 202a will press against the inclined surface of the locking groove 201b-1, causing them to separate and compress the third spring 202b. The locking block 202a moves into the sliding groove 101-4, which will not hinder the movement of the first moving column 201b. Thus, when the locking block 202a and the locking groove 201b-1 are in the same coaxial position again, they engage again, thereby locking the position of the first moving column 201b and preventing the first moving column 201b from moving upward along the first moving groove 101-2.

[0050] A pull rope 202c is fixed to one end of the locking block 202a, which is used to unlock the locking block 202a from the locking groove 201b-1. After a batch of pipe fittings is processed, the pull rope 202c is pulled to compress the third spring 202b, thereby separating the locking block 202a from the locking groove 201b-1. At this time, under the action of the first spring 201f, the first moving column 201b will return to the initial position, which is convenient for clamping the next batch of pipe fittings.

[0051] Example 3

[0052] Reference Figures 1-9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0053] Specifically, the abutment plate 201c consists of two parts, one of which is semi-circular and the other is rectangular. The rectangular part of the abutment plate 201c slides in the slide groove 101-3, and the semi-circular part of the abutment plate 201c slides in the clamping groove 101-1. When the pipe is located in the clamping groove 101-1, the end face of the pipe contacts the semi-circular part of the abutment plate 201c. The fixing block 201g is fixed to the rectangular part of the abutment plate 201c, and the two slide together in the slide groove 101-3.

[0054] Specifically, two first movable columns 201b are fixed on the first arc plate 201a, and the number of first springs 201f is the same as the number of first movable columns 201b.

[0055] By setting two first moving posts 201b on a first arc-shaped plate 201a, the first arc-shaped plate 201a can be moved vertically smoothly, thereby improving the stability of clamping.

[0056] Specifically, there are two sets of adjusting components 201, located in the lower clamping block 101 and the upper clamping block 102 respectively. A locking block 201k is fixed on the abutment 201c corresponding to the lower clamping block 101, and a slot 201c-1 is opened on the abutment 201c corresponding to the upper clamping block 102. The locking block 201k can engage with the slot 201c-1.

[0057] During clamping, the pipe is first placed in the clamping groove 101-1 of the lower clamping block 101, and the end face of the pipe is made to contact the abutment plate 201c. Then, the cylinder 103 is activated to drive the upper clamping block 102 to move downward. The upper clamping block 102 will apply a downward pushing force to the pipe, while the lower clamping block 101 will also apply an upward pushing force to the pipe, so that the two first arc-shaped plates 201a and the second arc-shaped plate 201i move symmetrically and finally fit tightly against the pipe.

[0058] When the size of the pipe fitting does not perfectly match the curvature of the first arc plate 201a, each of the first arc plate 201a and the second arc plate 201i will have two symmetrical lines that contact the pipe fitting, and together with another set of first arc plates 201a and second arc plates 201i, the pipe fitting will be clamped.

[0059] The locking block 201k and the locking slot 201c-1 are designed to ensure the coaxial position of the upper and lower plates 201c when adjusting the position of the plate 201c. To adjust the position of the plate 201c, the position of the plate 201c on the lower clamping block 101 needs to be adjusted first. When the handle 201l is rotated, the plate 201c and the clamping slot 101-1 are adjusted to the appropriate position, so that the lower clamping block 101 and the upper clamping block 102 are in contact. Then, the handle 201l on the upper clamping block 102 is rotated to move the plate 201c corresponding to the upper clamping block 102. At this time, the upper and lower plates 201c gradually approach each other. When they are in a coaxial position, the locking block 201k and the locking slot 201c-1 engage. The locking block 201k will hinder the movement of the plate 201c corresponding to the upper clamping block 102. Therefore, if you can feel the resistance when rotating the handle 201l, it proves that the upper and lower plates 201c are coaxial.

[0060] Specifically, the main component 100 also includes a worktable 104, a fixing frame 105, and a hydraulic reaming mechanism 106. The worktable 104 is bolted to the lower clamping block 101, and the fixing frame 105 is fixed on the worktable 104. The fixing frame 105 is used to provide stable support for the cylinder 103. The hydraulic reaming mechanism 106 is set on the lower clamping block 101 and fixed on the worktable 104. The hydraulic system in the hydraulic reaming mechanism 106 drives the reaming mold to approach the pipe. Under the action of the press, the workpiece material will generate stress exceeding its elastic limit, causing it to undergo plastic deformation. Through the reaming mold, this external force is precisely applied to the edge of the hole in the workpiece, causing the material at the edge of the hole to expand radially outward, thereby increasing the hole diameter. This is existing technology, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0061] In use, first adjust the position of the abutment plate 201c, turn the handle 201l to drive the rotating column 201d to rotate, so that the rotating column 201d can move along the direction of the fixed sleeve 201e, thereby pushing the abutment plate 201c to move along the direction of the slide groove 101-3, thereby changing the distance between the abutment plate 201c and the end face of the clamping groove 101-1. Then place the pipe fitting in the clamping groove 101-1 of the lower clamping block 101 and make the end face of the pipe fitting contact with the abutment plate 201c. Then start the cylinder 103 to drive the upper clamping block 102 to move downward.

[0062] The upper clamping block 102 will apply a downward thrust to the pipe, thereby compressing the first spring 201f and causing the first moving column 201b to move downward. At the same time, the first spring 201f will also apply a reverse thrust to the first moving column 201b, causing the first arc plate 201a to press against the pipe. When the locking block 202a and the locking groove 201b-1 are in a coaxial position, they will engage again, thereby locking the position of the first moving column 201b and ensuring the stability of the clamping. After that, the hole enlarging operation can begin.

[0063] After a batch of pipe fittings is processed, the pull rope 202c is pulled to compress the third spring 202b, which in turn causes the locking block 202a to separate from the locking groove 201b-1. At this time, under the action of the first spring 201f, the first moving column 201b will return to the initial position, which is convenient for clamping the next batch of pipe fittings.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reaming fixture for a press, characterized in that: include, The main body component (100) includes a lower clamping block (101), an upper clamping block (102), and a cylinder (103). The upper clamping block (102) is disposed above the lower clamping block (101), and the cylinder (103) is movably connected to the upper clamping block (102). An adjusting assembly (200), located within the lower clamping block (101), includes an adjusting member (201). The adjusting member (201) includes a first arc-shaped plate (201a), a first moving column (201b), a stop plate (201c), a rotating column (201d), and a fixing sleeve (201e). The lower clamping block (101) has a clamping groove (101-1). The first arc-shaped plate (201a) is disposed within the clamping groove (101-1), and the first moving column (201b) is fixed to the first arc-shaped plate (201a). The lower clamping block (101) is provided with a first moving groove (101-2), the first moving column (201b) slides in the first moving groove (101-2), the lower clamping block (101) is provided with a sliding groove (101-3), the abutment plate (201c) slides in the sliding groove (101-3), the rotating column (201d) is bearing connected to the abutment plate (201c), the fixed sleeve (201e) is fixed on the lower clamping block (101), and the rotating column (201d) is threadedly connected to the fixed sleeve (201e).

2. The press reaming fixture as described in claim 1, characterized in that: The fixed sleeve (201e) has a spiral groove (201f-1), and the rotating column (201d) has a thread at one end near the fixed sleeve (201e). The spiral groove (201f-1) engages with the thread on the rotating column (201d).

3. The press reaming fixture as described in claim 1 or 2, characterized in that: One end of the first movable column (201b) is fixed with a first spring (201f), and the other end of the first spring (201f) is fixed to the inner wall of the first movable groove (101-2).

4. The press reaming fixture as described in claim 3, characterized in that: A fixing block (201g) is fixed on one side of the abutment (201c). A second moving groove (201g-1) is opened in the fixing block (201g). A second moving block (201h) is arranged in the second moving groove (201g-1). A second arc-shaped plate (201i) is fixed on the second moving block (201h).

5. The press reaming fixture as described in claim 4, characterized in that: The adjusting component (201) further includes a second spring (201j), the two ends of which are fixed to the inner walls of the second moving block (201h) and the second moving groove (201g-1).

6. The press reaming fixture as described in claim 4 or 5, characterized in that: The adjustment assembly (200) further includes a locking element (202) disposed on one side of the first moving column (201b), including a locking block (202a) and a third spring (202b). The lower clamping block (101) is provided with a sliding groove (101-4), the locking block (202a) slides in the sliding groove (101-4), the third spring (202b) is fixed to one side of the locking block (202a), and the first moving column (201b) is provided with a locking groove (201b-1).

7. The press reaming fixture as described in claim 6, characterized in that: The abutment (201c) consists of two parts, one of which is semi-circular and the other is rectangular. The rectangular part of the abutment (201c) slides in the groove (101-3), and the semi-circular part of the abutment (201c) slides in the clamping groove (101-1).

8. The press reaming fixture as described in claim 7, characterized in that: Two first movable columns (201b) are fixed on the first arc plate (201a), and the number of first springs (201f) is the same as the number of first movable columns (201b).

9. The press reaming fixture as described in claim 7 or 8, characterized in that: There are two sets of the adjusting components (201), located in the lower clamping block (101) and the upper clamping block (102) respectively. A locking block (201k) is fixed on the abutment (201c) corresponding to the lower clamping block (101), and a locking groove (201c-1) is opened on the abutment (201c) corresponding to the upper clamping block (102). The locking block (201k) can engage with the locking groove (201c-1).

10. The press reaming fixture as described in claim 9, characterized in that: The main component (100) also includes a worktable (104), a fixing frame (105), and a hydraulic reaming mechanism (106). The worktable (104) is bolted to the lower clamping block (101), the fixing frame (105) is fixed on the worktable (104), and the hydraulic reaming mechanism (106) is disposed on the lower clamping block (101) and fixed on the worktable (104).

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