Centering positioning device for profile stamping die

Abstract

The utility model relates to a centering and positioning device for a profile stamping die, which comprises a fixing device used for being connected with a die, a sliding device arranged in the fixing device, a first positioning piece and a second positioning piece, and the sliding device comprises two sliding rails, two racks, a positioning shaft and a gear. The two sliding rails are installed on the fixing device in parallel and connected with the fixing device in a sliding mode, a rack is arranged at the end, close to the other sliding rail, of each sliding rail, the positioning shaft is located between the two racks, the gear is installed on the positioning shaft, the two racks are meshed with the gear, and the first positioning piece and the second positioning piece are installed on the two sliding rails respectively. The distances from the first positioning piece and the second positioning piece to the axis of the gear are equal. The first positioning piece and the second positioning piece can abut against the two ends of a to-be-positioned profile, the two racks and the gear are meshed with each other, the two positioning pieces are synchronously and reversely opened and synchronously retracted, the profile is automatically pushed to be accurately centered and positioned, operation is easy, convenient and rapid, punching is more accurate, and loss is reduced.

Description

Technical Field

[0001] The utility model relates to the field of profile processing, in particular to a centering positioning device for a profile punching die. Background Art

[0002] Profiles are straight, strip-shaped workpieces formed through injection molding and extrusion, with a defined cross-sectional shape and size. Profiles come in a wide variety of sizes and are widely used in various industries, such as doors and windows, guardrails, and office desks. As customers increasingly demand more reliable profile connections, and profiles with high machining precision offer greater stability and reliability, companies are placing higher demands on profile machining precision.

[0003] Doors and windows often feature accessories like locks and handles. These holes are typically cut in the center of the profile, often through milling or die cutting. In practice, it's common to punch profiles using multi-station dies, often using the end faces as a positioning reference. This often requires repositioning when cutting the center of profiles of varying sizes and lengths. This often leads to deviations in the finished product due to inaccurate positioning, impacting the precision and appearance of the door and window products. Some profiles can even be rendered ineffective, increasing material waste and costs. Utility Model Content

[0004] One of the purposes of the present invention is to solve the problem of inaccurate positioning when punching profiles in the prior art, and to provide a centering positioning device for a profile punching die, which can center the profile before punching the die, making the hole opening more accurate during punching, reducing the loss rate of the profile, and thus reducing costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A centering positioning device for a profile punching die comprises a fixing device for connecting to the die, a sliding device installed in the fixing device, a first positioning member and a second positioning member, the sliding device comprises two slide rails, two racks, a positioning shaft and a gear, the two slide rails are installed in parallel on the fixing device and are slidably connected to the fixing device, a rack is provided on one end of each slide rail close to the other slide rail, the positioning shaft is located between the two racks, the gear is installed on the positioning shaft, the two racks and the gear are meshed with each other, the first positioning member and the second positioning member are respectively installed on the two slide rails, and the distance from the first positioning member to the axis of the gear is equal to the distance from the second positioning member to the axis of the gear.

[0007] In the above technical solution, the fixing device is connected to the mold, and the entire mold is fixed on the frame of the punching machine, so that the device can remain stable during the processing process. Before punching, the operator must first install and center the profile, install the profile to be processed into the mold, and there is a sliding connection between the profile and the mold. Then the operator pushes the first positioning member or the second positioning member, and the corresponding positioning member will drive the slide rail and the rack to slide relative to the fixing device. The two racks and a gear engage with each other to achieve transmission. The movement of the rack will drive the positioning member that is not pushed to move, and the first positioning member and the second positioning member will approach each other. When the first positioning member or the second positioning member contacts one end of the profile, the first positioning member or the second positioning member will push the profile to slide in the mold. The distance between the first positioning member and the second positioning member and the fixing device is equal. Therefore, when the two ends of the profile are pushed to abut against the first positioning member and the second positioning member, the profile is in the center position, thereby achieving the center positioning of the profile. In addition, the first positioning member and the second positioning member can be moved closer or separated by driving the gear to rotate, thereby achieving the center positioning of the profile.

[0008] The first positioning member includes a first positioning seat and a first baffle, and the second positioning member includes a second positioning seat and a second baffle. The first positioning seat and the second positioning seat are respectively fixedly connected to the two slide rails. The first baffle is installed at the end of the first positioning seat away from the slide rail, and the second baffle is installed at the end of the second positioning seat away from the slide rail. The first baffle is parallel to the second baffle. The first positioning seat and the second positioning seat provide support for the first baffle and the second baffle, respectively. The first baffle and the second baffle are respectively in contact with the ends of the profile. The baffles can simultaneously support multiple profiles, allowing the device to achieve centering of multiple profiles with higher efficiency.

[0009] Preferably, the first and second baffles are each provided with a plurality of adjustment members that can adjust their positions along the direction of motion of the slide rail. After long-term use, this device may experience slight positioning deviations. When the adjustment members abut against both ends of the profile, they can be fine-tuned along the direction of motion of the slide rail to ensure that the distances from the adjustment members on both baffles to the fixing device are equal, resulting in improved accuracy.

[0010] Preferably, the adjusting member is an adjusting bolt, and a fixing disc is provided at one end of the adjusting bolt near the fixing device. The fixing disc increases the contact area between the adjusting member and the profile, making the positioning member more stable when pushing the profile and reducing offset. The adjusting bolt is adjusted by a threaded connection, which is more convenient.

[0011] Preferably, the first baffle is rotatably connected to the first positioning seat, and the rotation axis thereof is parallel to the movement direction of the slide rail, and the second positioning seat is fixedly connected to the second baffle. When installing the profile, there is no need to pull the slide rail to separate the first positioning member and the second positioning member before installing the profile into the mold. Instead, the first baffle can be rotated to offset the first baffle and the second baffle, thereby preventing the profile from being stuck by the first baffle during installation and facilitating the installation of the profile. After the profile is installed in the mold, the first baffle is rotated again to return to its original position, and then the centering positioning operation is performed again.

[0012] Preferably, the first positioning seat is provided with a first stopper, which allows the first baffle to remain stationary in a position parallel to the second baffle. The first stopper can clamp the first baffle in a position parallel to the second baffle to prevent excessive rotation, thereby facilitating profile installation and centering the profile.

[0013] Preferably, the fixing device includes a base plate, a cover plate, a positioning sleeve, and two slide rail seats fixed between the cover plate and the base plate. The two slide rail seats are installed in parallel and opposite to each other, and the two slide rails are installed in the two slide rail seats respectively. The positioning shaft is fixed to the base plate, and the gear is rotatably connected to the positioning shaft. The positioning sleeve is installed on the positioning shaft with its two ends respectively abutting the cover plate and the gear. The two ends of the positioning sleeve respectively abut the cover plate and the gear, which can fix the gear in the axial direction and improve stability.

[0014] Preferably, the cover plate is further provided with an anti-jump block, one end of which vertically abuts against the two racks and / or the two slide rails. Since the first and second positioning members have a certain weight, when the first and / or second positioning members are far away from the slide rail seat, the slide rail will generate a large bending stress, which may cause the slide rail to slide and become stuck. The provision of the anti-jump block can provide a supporting force for the slide rail to reduce the bending stress, thereby making the slide rail slide smoother and reducing the risk of the slide rail breaking.

[0015] Preferably, a second stopper is provided on any one of the slide rails, the second stopper being used to prevent the slide rail from separating from the slide rail seat. The second stopper can engage the fixing device when one end of the slide rail away from the first positioning member or the second positioning member approaches the fixing device, thereby preventing the slide rail from separating from the fixing device.

[0016] Preferably, the cover plate is further provided with a plurality of mounting holes and a plurality of mold matching pins. The mold matching pins facilitate the positioning and matching of the fixture and the mold, and the mounting holes facilitate the fixed connection between the mold and the fixture.

[0017] The beneficial effects of the present invention are as follows: the first positioning member and the second positioning member are arranged to bear against both ends of the profile, and the two racks and gears are engaged with each other, so that the two positioning members can synchronously open and retract in opposite directions, and automatically push the profile to accurately center the profile. The operation is simple and quick, making punching more accurate and reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a centering positioning device for a profile punching die according to the present invention;

[0019] Figure 2 This is an exploded view of a centering positioning device for a profile punching die of the present invention;

[0020] Figure 3 The utility model is a schematic diagram of the working of a centering positioning device for a profile punching die.

[0021] Among them, 1. fixing device; 101. bottom plate; 102. cover plate; 1021. mounting hole; 1022. mold matching pin; 103. positioning sleeve; 104. slide rail seat; 105. anti-jump block; 2. sliding device; 201. slide rail; 202. rack; 203. positioning shaft; 204. gear; 205. second limiting member; 3. first positioning member; 301. first positioning seat; 302. first baffle; 303. first limiting member; 4. second positioning member; 401. second positioning seat; 402. second baffle; 5. adjusting member; 501. adjusting bolt; 502. fixing disc. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0024] Example 1

[0025] like Figure 1-3The figure shows an embodiment 1 of a centering positioning device for a profile punching die, comprising a fixing device 1 for connecting to the die, a sliding device 2 installed in the fixing device 1, a first positioning member 3 and a second positioning member 4. The sliding device 2 includes two slide rails 201, two racks 202, a positioning shaft 203 and a gear 204. The fixing device 1 includes a base plate 101, a cover plate 102, a positioning sleeve 103 and two slide rail seats 104 fixed between the cover plate 102 and the base plate 101. The two slide rail seats 104 are installed parallel and opposite to each other. The two slide rails 201 are respectively installed in the two slide rail seats 104 and are slidably connected to the slide rail seats 104. The positioning shaft 203 is fixed on the base plate 101 and is located between the two racks 202. The gear 204 is installed on the positioning shaft 203 and is rotatably connected to the positioning shaft 203. The positioning sleeve 103 is installed on the positioning shaft 203 and its two ends respectively press against the cover plate 102 and the gear 204. A rack 202 is provided at one end of each slide rail 201 close to the other slide rail 201. The two racks 202 and the gear 204 are engaged with each other. The first positioning member 3 and the second positioning member 4 are respectively installed on the two slide rails 201. The distance from the first positioning member 3 to the axis of the gear 204 is equal to the distance from the second positioning member 4 to the axis of the gear 204.

[0026] Specifically, the fixing device 1 is connected to the mold, and the entire mold is fixed on the frame of the punching machine so that the device can remain stable during the processing. Before punching, the operator must first install and center the profile, install the profile to be processed into the mold, and there is a sliding connection between the profile and the mold. Then the operator pushes the first positioning member 3 or the second positioning member 4, and the corresponding positioning member will drive the slide rail 201 and the rack 202 to slide relative to the fixing device 1. The two racks 202 and a gear 204 engage with each other to realize transmission. The movement of the rack 202 will drive the other one that has not been pushed. When the first positioning member 3 or the second positioning member 4 contacts one end of the profile, the corresponding positioning member will push the profile to slide in the mold. The first positioning member 3 and the second positioning member 4 are at the same distance from the fixing device 1. Therefore, when the two ends of the profile are pushed to abut against the first positioning member 3 and the second positioning member 4, the profile is in the center position, thereby realizing the center positioning of the profile. The two ends of the positioning sleeve 103 respectively abut the cover plate 102 and the gear 204, which can fix the gear 204 in the axial direction and provide better stability.

[0027] The beneficial effects of this embodiment are as follows: The first positioning member 3 and the second positioning member 4 are configured to support both ends of the profile. The two racks 202 and the gear 204 mesh with each other, allowing the first positioning member 3 and the second positioning member 4 to simultaneously open and retract in opposite directions, automatically pushing the profile and accurately centering it. The operation is simple and quick, making punching more accurate and reducing losses. The fixing device 1 is fixedly connected to the mold, providing better stability. The positioning sleeve 103 realizes the axial fixation of the gear 204. The positioning shaft 203 fixed to the base plate 101 limits the displacement of the gear 204.

[0028] Example 2

[0029] like Figure 1-3 The figure shows an embodiment 2 of a centering positioning device for a profile punching die. The difference from embodiment 1 is that it also includes a driving device, a gear 204 and a positioning shaft 203 are fixedly connected, and the positioning shaft 203 is rotationally connected to the fixing device 1. The driving device is used to drive the positioning shaft 203 to rotate. In this embodiment, the driving device is a rotary motor. In addition, it can also be a rotary drive method such as human drive or hydraulic drive. Specifically, the output shaft of the rotary motor drives the positioning shaft 203 to rotate, and the gear 204 fixed on the positioning shaft 203 also rotates, thereby driving the two racks 202 meshing therewith to move, thereby driving the movement of the first positioning member 3 and the second positioning member 4. By changing the rotation direction of the motor, the first positioning member 3 and the second positioning member 4 can be moved closer or farther away, thereby achieving the centering of the profile. The advantage of this embodiment is that a rotary motor is used to drive the gear 204 to rotate, which saves time and effort and is more convenient.

[0030] The remaining features and technical effects of this embodiment are consistent with those of Example 1.

[0031] Example 3

[0032] like Figure 1-3The figure shows an embodiment 3 of a centering positioning device for a profile punching die. The difference from embodiment 1 or embodiment 2 is that the first positioning member 3 includes a first positioning seat 301 and a first baffle 302, and the second positioning member 4 includes a second positioning seat 401 and a second baffle 402. The first positioning seat 301 and the second positioning seat 401 are respectively fixed to the two slide rails 201 at one end away from the fixing device 1, the first baffle 302 is installed at the end of the first positioning seat 301 away from the slide rail 201, and the second baffle 402 is installed at the end of the second positioning seat 401 away from the slide rail 201. The first baffle 302 is parallel to the second baffle 402. Two adjusting members 5 are equidistantly provided on the first baffle 302, and four adjusting members 5 are equidistantly provided on the second baffle 402. In this embodiment, the adjusting member 5 is an adjusting bolt 501, and the adjusting bolt 501 is connected by a threaded connection to achieve connection adjustment. A fixing disc 502 is provided at one end of the adjusting bolt 501 close to the fixing device 1. A rotation groove is provided on the first positioning seat 301. The first baffle 302 is rotatably installed in the rotation groove and its rotation axis is parallel to the movement direction of the slide rail 201. The second positioning seat 401 and the second baffle 402 are fixedly connected. The first limiting member 303 is a rotation groove. When the first baffle 302 rotates to be parallel to the second baffle 402, one side of it will abut against the inside of the rotation groove, limiting the first baffle 302 from continuing to rotate in the original direction, so that the first baffle 302 can be stationary at a position parallel to the second baffle 402.

[0033] Specifically, the first positioning seat 301 and the second positioning seat 401 provide support for the first baffle 302 and the second baffle 402 respectively. The first baffle 302 and the second baffle 402 can simultaneously resist two profiles of equal length and center them. Therefore, in actual processing, the number of molds can be adjusted according to the length of the baffle, which can improve efficiency. After long-term use of this device, it may cause slight deviations in positioning. The fixed disc 502 at one end of the adjusting member 5 resists the two ends of the profile respectively. At this time, the adjusting member 5 can be adjusted along the movement direction of the slide rail 201 for fine-tuning, so that the distance between the adjusting member 5 on the first baffle 302 and the second baffle 402 and the fixing device 1 is equal, and the accuracy is better. The fixed disc 502 increases the contact area between the adjusting member 5 and the profile, making the first positioning member 3 and the second positioning member 4 more stable when pushing the profile. The first stopper 303 can clamp the first baffle 302 in a position parallel to the second baffle 402 to avoid excessive rotation, which is convenient for both profile installation and profile centering.

[0034] The remaining features and technical effects of this embodiment are consistent with those of Example 1 or Example 2.

[0035] Another embodiment of the first limit member 303 is provided here. Different from the above embodiment, in this embodiment, no rotation groove is provided. The first baffle 302 is installed on one side of the first positioning seat 301 and is rotatably connected to the first positioning seat 301. The two limiting protrusions on the first positioning seat 301 form the first limit member 303. When the first baffle 302 rotates to be parallel to the second baffle 402, the limiting protrusion abuts against the first baffle 302, limiting the first baffle 302 from continuing to rotate in the original direction, so that the first baffle 302 can be stationary at a position parallel to the second baffle 402.

[0036] Example 4

[0037] like Figure 1-3The figure shows an embodiment 4 of a centering positioning device for a profile punching die. The difference from the above embodiment is that an anti-jump block 105, a plurality of positioning holes and a plurality of mold matching pins 1022 are also provided on the cover plate 102. The anti-jump block 105 is L-shaped. The end of the anti-jump block 105 with a larger area simultaneously presses against the two racks 202 in the vertical direction. A second limiting member 205 is provided on one of the slide rails 201. In this embodiment, the second limiting member 205 is a limiting pin. In addition, it can also be a limiting bolt, a limiting protrusion, etc. The second limiting member 205 is used to prevent the slide rail 201 from separating from the slide rail seat 104. Since the first positioning member 3 and the second positioning member 4 have a certain weight, when the first positioning member 3 and the second positioning member 4 are far away from the slide rail seat 104, the slide rail 201 will generate a large bending stress, which may cause the slide rail 201 to slide and get stuck. The setting of the anti-jump block 105 can provide a supporting force to the rack 202 to reduce the bending stress, so that the slide rail 201 slides smoothly and the risk of breakage of the slide rail 201 can be reduced. The second limit member 205 can clamp the fixing device 1 when one end of the slide rail 201 away from the first positioning member 3 or the second positioning member 4 approaches the fixing device 1, preventing the slide rail 201 from detaching from the fixing device 1. The mold matching pin 1022 facilitates the positioning and matching of the fixing device 1 and the mold, and the mounting hole 1021 can facilitate the fixed connection between the mold and the fixing device 1.

[0038] The remaining features and technical effects of this embodiment are consistent with those of the above embodiment.

[0039] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A centering positioning device for a profile die, characterized in that: The invention comprises a fixing device (1) for connecting with a mold, a sliding device (2) installed in the fixing device (1), a first positioning member (3) and a second positioning member (4), wherein the sliding device (2) comprises two slide rails (201), two racks (202), a positioning shaft (203) and a gear (204), the two slide rails (201) are installed in parallel on the fixing device (1) and are slidably connected to the fixing device (1); a sliding member is provided on one end of each slide rail (201) close to the other slide rail (201) There is a rack (202); the positioning shaft (203) is located between the two racks (202); the gear (204) is installed on the positioning shaft (203); the two racks (202) and the gear (204) are meshed with each other; the first positioning member (3) and the second positioning member (4) are respectively installed on the two slide rails (201); the distance from the first positioning member (3) to the axis of the gear (204) is equal to the distance from the second positioning member (4) to the axis of the gear (204).

2. A centering positioning device for a profile die according to claim 1, characterized in that: The first positioning member (3) includes a first positioning seat (301) and a first baffle (302), and the second positioning member (4) includes a second positioning seat (401) and a second baffle (402). The first positioning seat (301) and the second positioning seat (401) are respectively fixedly connected to the two slide rails (201); the first baffle (302) is installed at one end of the first positioning seat (301) away from the slide rail (201); the second baffle (402) is installed at one end of the second positioning seat (401) away from the slide rail (201); and the first baffle (302) is parallel to the second baffle (402).

3. A centering positioning device for a profile die according to claim 2, characterized in that: A plurality of adjusting members (5) are respectively provided on the first baffle (302) and the second baffle (402), and the adjusting members (5) can adjust the position along the movement direction of the slide rail (201).

4. A centering positioning device for a profile die according to claim 3, characterized in that: The adjusting member (5) is an adjusting bolt (501), and a fixing disc (502) is provided at one end of the adjusting bolt (501) close to the fixing device (1).

5. A centering positioning device for a profile die according to claim 4, characterized in that: The first baffle (302) and the first positioning seat (301) are rotatably connected, and the rotation axis thereof is parallel to the movement direction of the slide rail (201), and the second positioning seat (401) and the second baffle (402) are fixedly connected.

6. A centering positioning device for a profile die according to claim 5, characterized in that: A first limiting member (303) is provided on the first positioning seat (301), and the first limiting member (303) enables the first baffle (302) to be stationary at a position parallel to the second baffle (402).

7. A centering positioning device for a profile punching die according to any one of claims 1 to 6, characterized in that: The fixing device (1) comprises a base plate (101), a cover plate (102), a positioning sleeve (103) and two slide rail seats (104) fixed between the cover plate (102) and the base plate (101); the two slide rail seats (104) are installed in parallel and opposite to each other, and the two slide rails (201) are respectively installed in the two slide rail seats (104); the positioning shaft (203) is fixed on the base plate (101); the gear (204) is rotatably connected to the positioning shaft (203); the positioning sleeve (103) is installed on the positioning shaft (203) and its two ends respectively abut against the cover plate (102) and the gear (204).

8. A centering positioning device for a profile punching die according to claim 7, characterized in that: An anti-jump block (105) is also provided on the cover plate (102), and one end of the anti-jump block (105) simultaneously abuts against the two racks (202) and / or the two slide rails (201) in the vertical direction.

9. A centering positioning device for a profile die according to claim 7, characterized in that: Any one of the slide rails (201) is provided with a second position-limiting member (205), and the second position-limiting member (205) is used to prevent the slide rail (201) from detaching from the slide rail seat (104).

10. A centering positioning device for a profile punching die according to claim 7, characterized in that: The cover plate (102) is also provided with a plurality of mounting holes (1021) and a plurality of mold matching pins (1022).

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