Hydraulic punching machine for hardware machining
By setting a limiting component at the discharge end of the hydraulic punch die, the problem of lateral displacement of the punch strip during winding or stacking is solved, thus achieving stability and accuracy in the punching process and adapting to various discharge height requirements.
Patent Information
- Application Number
- CN202420215387.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-30
AI Technical Summary
In hardware processing, punched strips with perforations are prone to lateral displacement due to uneven force during winding or stacking, resulting in missing corners and edges in the material during punching.
A limiting component, including a limiting arm and a guide wheel, is set at the die discharge end of the hydraulic punch press. The limiting arm and the guide wheel restrict the lateral movement and torsional freedom of the punch strip. Combined with an adjustable threaded sleeve and nut locking structure, the punch strip remains stable during the discharge process.
It effectively prevents the punching strip from shifting during the discharge process, ensuring punching accuracy and forming quality, and adapting to the height adjustment requirements of different winding or stacking methods.
Smart Images
Figure CN222326395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hardware processing equipment, in particular to a hydraulic punching machine for hardware processing. Background Art
[0002] A hydraulic punch press is a stamping process equipment that uses a hydraulic pump to generate high pressure hydraulic oil and then strikes the die through a hydraulic cylinder punch to form an up and down reciprocating motion. It is often used in hardware processing, such as punching, corner cutting, pressing, and stretching. It is often used for cutting in mass production. Cutting is often divided into two types according to the use of the punching strip. One is full-material punching and the other is punching with excess material. Full material means that there is no overall connectivity left in the punching strip after punching, and most of the space is provided for the cut material, such as the punching of a square perforated sheet. The punching strip is directly cut and most of the space is for the cut square perforated sheet; and the punching with excess material is such as disc punching. Since the punching strip is strip-shaped, there will be more excess material in the punching strip after cutting the disc.
[0003] The remaining punching strip with punched holes needs to be recycled after discharge for subsequent use. Since the punching strip used for hardware punching is made of metal, when uneven force or uneven stacking occurs during the winding or stacking of the remaining punching strip, it is easy to generate lateral deflection and twisting torque on the rear part of the punching strip, which may cause the punching strip to shift during punching. Since the material area on the punching strip is arranged relatively full, the offset of punching may cause some corners and edges to be missing when some materials are cut, thus affecting the punching operation and the forming effect of the material. Utility Model Content
[0004] In view of the above problems, the utility model provides a hydraulic punching machine for hardware processing, which structure includes a machine body, a hydraulic punch mounted on the machine body and a punching platform located below the punch, a stamping die is provided between the punch and the punching platform, and the punch and the punching platform are respectively provided with an upper die and a lower die of the die, wherein a punching belt passes through the die, and the punching platform is provided with a limiting assembly at the discharge end of the die to contact the punching belt; the limiting assembly includes a base plate mounted on the punching platform and a mounting seat detachably mounted on both sides of the base plate, A limit arm is swingably provided on the mounting seat, and the limit arm is provided with a guide wheel which can rotate with the axis of the limit arm as the rotation axis, and the punching belt is in contact with the guide wheel; a positioning ring is fixedly provided on the limit arm at the connection between the limit arm and the mounting seat, and the axis of the positioning ring is colinear with the swing axis of the limit arm; a limit pressure cover is detachably provided on the base plate between the mounting seats on both sides, and the two ends of the limit pressure cover are abutted against the positioning ring, and the positioning ring limits the degree of freedom of rotation around the axis of the positioning ring under the pressure of the limit pressure cover.
[0005] Furthermore, the limiting arm is provided with a thread and serves as a threaded portion; the guide wheel includes a threaded sleeve for nesting the wheel component, a side wheel and a middle wheel nested on the threaded sleeve, and the side wheels are provided with two and are located on both sides of the middle wheel, and the threaded sleeve is installed on the threaded portion of the limiting arm through a thread.
[0006] Furthermore, a nut-shaped six-sided structure is provided on the threaded sleeve, and a counter-locking nut is installed on the threaded portion at the top end or the bottom end of the threaded sleeve and abuts against the threaded sleeve.
[0007] Furthermore, the positioning ring is surrounded by gear teeth, and the parts of the two ends of the pressure cover that abut against the positioning ring are configured as engaging parts, and the engaging parts are provided with grooves that engage with the gear teeth.
[0008] Furthermore, a limiting seat is detachably provided on the base plate between the mounting seats on both sides, the limiting pressure cover is detachably provided on the limiting seat by means of bolts, and the limiting pressure cover is detachably provided on the base plate by means of the limiting seat.
[0009] Furthermore, a limit stopper is provided on the limit gland, and the limit stopper abuts against the limit seat to limit the freedom of rotation of the limit gland around the vertical axis.
[0010] Furthermore, a trapezoidal groove is provided on the base plate and a fixing block is provided in the trapezoidal groove, and the mounting seat is retracted on the fixing block by bolts and then installed in the trapezoidal groove; the length direction of the trapezoidal groove is perpendicular to the discharge direction of the punching belt. Beneficial Effects
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The utility model provides a limiting component at the discharge end of the die to contact the punching belt. After the punching is completed, the punching belt with corresponding holes passes through the die, passes through the middle wheel on the limiting arm, and limits the freedom of movement of the punching belt on both sides along the discharge direction by the limiting arms and the middle wheels on both sides. Both sides of the punching belt are located between the two side wheels, and the freedom of torsion of the punching belt is limited by the side wheels, so that the lateral offset force generated during winding or stacking will not affect the punching belt in the die because the punching belt is limited by the limiting arms, the middle wheels and the side wheels, thereby avoiding the offset of the punching belt during punching.
[0013] 2. The utility model sets the limit arm to swing, and provides a limit pressure cover to bite and fix the positioning ring fixed on the limit arm, so that the limit arm can be swung and fixed, and also installs the side wheels and the middle wheel through a threaded sleeve with a nut-shaped six-sided structure, and is locked with a counter-fixing nut on the limit arm with a threaded portion, so that the height of the guide wheel on the limit arm can be adjusted, so as to be suitable for different discharge heights of the punching belt caused by different winding or stacking recovery methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an overall schematic diagram of the hydraulic punching machine for hardware processing of the utility model.
[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in which the limit assembly is installed on the punching platform.
[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the cooperation between the limit arm and the guide wheel of the utility model.
[0017] Figure 4 It is a three-dimensional structural schematic diagram of the cooperation between the limiting pressure cover and the limiting arm with a positioning ring of the utility model, and a partial schematic diagram of the cooperation between the bite part and the positioning ring.
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the mounting seat and the base plate of the utility model.
[0019] In the figure: A, punching belt; 1, machine body; 2, punching platform; 3, punch; 4, die; 5, limit assembly;
[0020] 51. Base plate; 52. Mounting seat; 53. Limiting arm; 54. Guide wheel; 55. Positioning ring; 56. Limiting gland; 57. Limiting seat;
[0021] 53a, threaded portion; 541, threaded sleeve; 542, side wheel; 543, middle wheel; 544, counter-lock nut; 561, bite portion; 562, limit stop portion. DETAILED DESCRIPTION
[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0023] Examples, such as Figure 1-Figure 5As shown: The utility model provides a hydraulic punching machine for hardware processing, which structure includes a machine body 1, a hydraulic punch 3 installed on the machine body 1 and a punching platform 2 located below the punch 3, a stamping die 4 is provided between the punch 3 and the punching platform 2, and the punch 3 and the punching platform 2 are respectively provided with an upper die and a lower die of the die 4, a punching strip A passes through the die 4, and the punching strip A punches out corresponding metal sheets under the pressure of the upper die and the lower die, leaving the punching strip A with corresponding holes passing through the die 4, in this embodiment, the punching platform 2 is provided with a limit assembly 5 at the discharge end of the die 4 to contact the punching strip A;
[0024] Specifically, the limiting assembly 5 includes a base plate 51 mounted on the punching platform 2 and mounting seats 52 detachably mounted on both sides of the base plate 51. The base plate 51 is provided with a trapezoidal groove and the trapezoidal groove is provided with a fixing block, and the length direction of the trapezoidal groove is perpendicular to the discharge direction of the punching strip A. The mounting seats 52 are retracted on the fixing block by bolts and then installed in the trapezoidal groove, so that the mounting seats 52 can adjust the spacing on the base plate 51 to adapt to punching strips A of different widths.
[0025] A limit arm 53 is swingably provided on the mounting seat 52, and a guide wheel 54 is provided on the limit arm 53 which can rotate with the axis of the limit arm 53 as the rotation axis, and the punching belt A is in contact with the guide wheel 54. In addition, a positioning ring 55 is fixedly provided on the limit arm 53 at the connection between the limit arm 53 and the mounting seat 52, and the axis of the positioning ring 55 is colinear with the swing axis of the limit arm 53. In order to fix the position of the positioning ring 55, a limit pressure cover 56 is detachably provided on the base plate 51 between the mounting seats 52 on both sides, and the two ends of the limit pressure cover 56 are abutted against the positioning ring 55. In this embodiment, gear teeth are arranged around the positioning ring 55, and the parts of the two ends of the pressure cover that abut against the positioning ring 55 are set as bite parts 561, and the bite parts 561 are provided with grooves that are engaged with the gear teeth. Under the pressure of the limit pressure cover 56, the freedom of rotation of the positioning ring 55 around the axis of the positioning ring 55 is limited.
[0026] In this embodiment, a thread is provided on the limiting arm 53 and serves as a threaded portion 53a, and the guide wheel 54 includes a threaded sleeve 541 for nesting the wheel component, a side wheel 542 nested on the threaded sleeve 541, and a middle wheel 543, wherein two side wheels 542 are provided and are located on both sides of the middle wheel 543, and the threaded sleeve 541 is installed on the threaded portion 53a of the limiting arm 53 by means of threads. In order to facilitate the installation of the threaded sleeve 541, a nut-shaped six-sided structure is provided on the threaded sleeve 541, and in order to fix the position of the threaded sleeve 541, a counter-fixing nut 544 is installed on the threaded portion 53a at the top or bottom end of the threaded sleeve 541 and is against the threaded sleeve 541, and the counter-fixing nut 544 and the threaded sleeve 541 are locked with each other to fix the position of the threaded sleeve 541 on the limiting arm 53.
[0027] In this embodiment, a limit seat 57 is detachably provided on the base plate 51 between the mounting seats 52 on both sides, and a limit pressure cover 56 is detachably provided on the limit seat 57 through bolts. The limit pressure cover 56 is detachably provided on the base plate 51 through the limit seat 57. A limit stopper 562 is provided on the limit pressure cover 56, and the limit stopper 562 abuts against the limit seat 57 to limit the freedom of rotation of the limit pressure cover 56 around the vertical axis.
[0028] During the specific implementation, the punching strip A passes through the mold 4, and the punch 3 drives the upper mold of the mold 4 to press against the lower mold that is lowered. The punching strip A punches out the corresponding metal sheet under the pressing of the upper mold and the lower mold, leaving the punching strip A with corresponding holes passing through the mold 4, and the punching strip A passes through the middle wheel 543 on the limiting arm 53. The freedom of movement of the punching strip A on both sides along the discharge direction is limited by the limiting arms 53 and the middle wheels 543 on both sides. Both sides of the punching strip A are located between the two side wheels 542, and the torsion freedom of the punching strip A is limited by the side wheels 542. The punching strip A passing through the limiting assembly 5 is rolled up or stacked according to subsequent needs, but the lateral offset force generated during rolling or stacking will not affect the punching strip A in the mold 4 because the punching strip A is limited by the limiting arms 53, the middle wheels 543 and the side wheels 542.
[0029] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
Claims
1. A hydraulic punching machine for hardware processing, which structure includes a machine body, a hydraulic punch mounted on the machine body and a punching platform located below the punch, a punching die is arranged between the punch and the punching platform, and an upper die and a lower die of the die are arranged on the punch and the punching platform, characterized in that: A punching belt passes through the mold, and the punching platform is provided with a limiting component at the discharge end of the mold to contact the punching belt; The limiting assembly comprises a base plate mounted on the punching platform and mounting seats detachably mounted on both sides of the base plate, a limiting arm is swingably provided on the mounting seat, a guide wheel which can rotate with the axis of the limiting arm as the rotation axis is provided on the limiting arm, and the punching belt contacts the guide wheel; A positioning ring is fixedly provided on the limiting arm at the connection between the limiting arm and the mounting seat, and the axis of the positioning ring is collinear with the swing axis of the limiting arm; A limiting pressure cover is detachably provided on the base plate between the mounting seats on both sides, and both ends of the limiting pressure cover abut against the positioning ring. Under the pressure of the limiting pressure cover, the positioning ring limits the freedom of rotation around the axis of the positioning ring.
2. The hydraulic punch press for hardware processing according to claim 1, characterized in that: The limiting arm is provided with a thread and serves as a threaded portion; The guide wheel comprises a threaded sleeve for nesting wheel components, a side wheel and a middle wheel nested on the threaded sleeve, two side wheels are provided and located on both sides of the middle wheel, and the threaded sleeve is installed on the threaded part of the limiting arm through threads.
3. The hydraulic punch press for hardware processing according to claim 2, characterized in that: The threaded sleeve is provided with a nut-shaped six-sided structure, and a counter-fixing nut is installed on the threaded portion at the top end or the bottom end of the threaded sleeve and abuts against the threaded sleeve.
4. The hydraulic punch press for hardware processing according to claim 1, characterized in that: The positioning ring is surrounded by gear teeth, and the parts of the two ends of the pressure cover that abut against the positioning ring are configured as engaging parts, and the engaging parts are provided with grooves that engage with the gear teeth.
5. The hydraulic punch press for hardware processing according to claim 1, characterized in that: A limit seat is detachably provided on the base plate between the mounting seats on both sides, the limit pressure cover is detachably arranged on the limit seat through bolts, and the limit pressure cover is detachably arranged on the base plate through the limit seat.
6. The hydraulic punch press for hardware processing according to claim 5, characterized in that: The limit gland is provided with a limit stopper, and the limit stopper abuts against the limit seat to limit the freedom of the limit gland to rotate around the vertical axis.
7. The hydraulic punch press for hardware processing according to claim 1, characterized in that: The base plate is provided with a trapezoidal groove and the trapezoidal groove is provided with a fixing block, and the mounting seat is retracted on the fixing block by bolts and then installed in the trapezoidal groove; The length direction of the trapezoidal groove is perpendicular to the discharging direction of the punching belt.