Positioning clamp for cutting and processing steel fittings of metal bending machine

Abstract

The invention provides a positioning clamp for metal bending machine steel accessory cutting machining, and relates to the technical field of metal cutting machining positioning. A progressive frame is fixedly mounted in the middle of the top of the bottom frame, a through sliding groove is formed in the middle of the top of the progressive frame, and a motor A is fixedly mounted at the front end in the sliding groove of the progressive frame. A bevel gear and a bevel gear ring are driven to rotate by starting a motor B, six opposite sliding blocks slide towards the center, semicircular clamping blocks are driven to be attached and fixed to a steel accessory, the positions of the semicircular clamping blocks which are not in contact with the steel accessory can be adjusted progressively by starting a motor C until all the semicircular clamping blocks are attached to the circumferential face of the steel accessory, and then the steel accessory is fixed. And multi-directional positioning and clamping of the steel fittings in the cutting process are achieved. The problems that when an existing positioning clamp is used for fixing the steel accessories, automatic adjustment and adaptation cannot be conducted according to the specific shapes and sizes of the different steel accessories, and universality is poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting and processing positioning, and in particular to a positioning fixture for cutting and processing steel accessories of a metal bending machine. Background Art

[0002] The main materials of metal bending machines include carbon tool steel, low alloy tool steel, high carbon high chromium tool steel, high carbon medium chromium tool steel and high speed steel. These materials have their own characteristics and applicable scenarios in CNC bending machine molds. When processing and manufacturing metal bending machines, the steel structure accessories of the bending machine need to be positioned and cut to facilitate the subsequent assembly of the overall structural parts.

[0003] Application No. CN202323214695.7 discloses a special clamping device for bending metal parts, including a support structure for placing the parts to be bent, at least one clamping structure for clamping the parts to be bent above the support structure, and a base adjustment structure for adjusting the position of the support structure; the support structure includes a bending base and a bottom plate; the base adjustment structure includes a first adjustment seat and a second adjustment seat, the bottom plate is movably connected to the second adjustment seat, the second adjustment seat is movably connected to the second adjustment seat, and the position adjustment of the support structure is achieved by the movement of the bottom plate relative to the second adjustment seat, and the movement of the second adjustment seat relative to the first adjustment seat; the clamping structure includes a clamping base detachably connected to the bottom plate, a driving device arranged on the clamping base, and a clamping portion arranged on the driving device and extending above the bending base. The utility model realizes the automatic clamping of the parts to be bent in the stamping and bending process of special parts and the convenient position adjustment of the clamping device. Based on the search of the above patents and the application of existing positioning fixtures for cutting and processing steel accessories of metal bending machines, it is understood that when fixing steel accessories, traditional positioning fixtures cannot be autonomously adjusted and adapted according to the specific shapes and sizes of different steel accessories, and have poor versatility. Moreover, after the CNC program is written, the positioned material may deviate from the angle set by the program, and there is a lack of effective angle adjustment mechanism, which affects the accuracy of the cutting angle.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a positioning fixture for cutting and processing steel parts of a metal bending machine is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a positioning fixture for cutting and processing steel accessories of metal bending machines, so as to solve the problem that the existing positioning fixture cannot autonomously adjust and adapt according to the specific shapes and sizes of different steel accessories when fixing steel accessories, has poor versatility, and after the CNC program is written, the positioned material may deviate from the angle set by the program, and lacks an effective angle adjustment mechanism, which affects the accuracy of the cutting angle.

[0006] The present invention provides a positioning fixture for cutting and processing steel accessories of a metal bending machine, specifically comprising: a base frame; a progressive frame is fixedly installed at the top middle position of the base frame, a sliding groove is provided at the top middle position of the progressive frame, a motor A is fixedly installed at the front end position of the sliding groove of the progressive frame, a slider A is slidably connected to the front end position of the sliding groove of the progressive frame, the top middle position of the slider A is fixedly connected to the bottom middle position of the angle frame, an adjusting frame is fixedly installed at the inner position of the slider A, a worm gear is rotatably connected to the inner middle position of the adjusting frame, and the top middle position of the worm gear is rotatably connected to the bottom of the positioning seat The middle position is fixedly connected, and a motor B is arranged on the right side of the positioning seat. The rotating shaft of motor B is fixedly connected with a bevel gear, and the bevel gear is located in the internal position of the positioning seat. The internal middle position of the positioning seat is rotatably connected with a bevel gear ring, and a spiral block is arranged on the top of the bevel gear ring. Six slide grooves are arranged on the top of the positioning seat, and the spacing between every two adjacent slide grooves is the same. An opposing slider is slidably connected in each of the six slide grooves of the positioning seat. The six opposing sliders are distributed in a ring shape, and an arc block is arranged at the bottom of each opposing slider, and the arc block of the opposing slider engages with the spiral block position of the bevel gear ring.

[0007] Furthermore, a slider B is slidably connected to the rear end of the progressive frame slide slot, and sliders A and B are symmetrically distributed at the front and rear ends of the progressive frame slide slot. Threaded holes are provided in the middle positions of sliders B and A, and the threaded holes of sliders B and A are symmetrically designed.

[0008] Furthermore, the rotating shaft of motor A is located in the middle position inside the slide slot of the progressive frame, and threads are provided at both the front and rear ends of the rotating shaft of motor A, and the threads at both ends of the rotating shaft of motor A are symmetrically designed. The front end position of the rotating shaft of motor A is located in the threaded hole of slider A, and the rear end position of the rotating shaft of motor A is located in the threaded hole of slider B.

[0009] Furthermore, a power contactor with a U-shaped design is fixedly installed at the middle and rear end position of the top of the progressive frame, and a contact switch is provided on both sides of the rear end of the power contactor. A cutting machine is provided at the top position of the slider B, and the two contact switches of the cutting machine and the power contactor are connected through a wiring harness.

[0010] Furthermore, a worm is rotatably connected to the inner front end position of the adjustment frame, the worm engages the front end of the worm wheel, and an angle plate is fixedly connected to the top middle position of the angle frame. The middle position of the angle plate is a through design, and the upper end of the rod body of the worm wheel passes through the inner middle position of the angle plate.

[0011] Furthermore, an adapter frame is fixedly connected to the outer position of the top of the opposing slider, a motor C is fixedly installed on the outer position of the adapter frame, the rotating shaft of the motor C is provided with threads, and length scale values ​​are provided on both sides of the top of the adapter frame.

[0012] Furthermore, the top position of the opposing slider is slidably connected to an adaptable frame, a threaded hole is opened in the middle position of the outer side of the adaptable frame, and the motor C shaft is threadedly rotatably connected in the threaded hole of the adaptable frame, and a semicircular clamp is rotatably connected to the inner side of the adaptable frame.

[0013] Furthermore, when the slider A and the slider B are in contact with each other, the cutting processing position of the cutting machine is located directly above the positioning seat, and the lower front end of the cutting machine squeezes and contacts the two contact switches of the power contactor.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the bevel gear and the bevel gear ring to rotate by starting the motor B, so that the six opposing slide blocks slide toward the center, driving the semicircular clamps to fit and fix the steel accessories. For the semicircular clamps that are not in contact with the steel accessories, the position can be progressively adjusted by starting the motor C until all the semicircular clamps fit the circumferential surface of the steel accessories, thereby realizing multi-directional positioning and clamping of the steel accessories during the cutting process, effectively avoiding the loosening of the steel accessories during the processing, and greatly improving the processing accuracy and quality.

[0015] 2. The position of the semicircular clamp can be adjusted independently. This design is more suitable for the fixation of irregular steel accessories, which enhances the versatility of the positioning fixture. At the same time, a memory fixation system is formed. When processing steel accessories of the same model, replacement and adaptation processing can be conveniently carried out, thereby improving processing efficiency.

[0016] 3. Motor A drives slider A and slider B to slide toward the middle. When slider A fits in the middle of slider B, the cutting processing position of the cutting machine is just above the positioning seat, and the two contact switches of the power contactor are squeezed and contacted at the lower front end of the cutting machine, thereby connecting the circuit and starting the cutting machine for cutting. This precise coordination ensures the accuracy of the cutting position, avoids cutting position deviation, and improves the accuracy and reliability of the cutting process.

[0017] 4. After the cutting is completed, start the motor A in reverse, so that the slider A and the slider B slide apart to both sides, and the two contact switches of the cutting machine and the power contactor disengage, automatically disconnecting the power supply of the cutting machine, which is safer during operation and reduces safety hazards.

[0018] 5. When there is an angle deviation between the CNC program writing and the positioning material, the worm is rotated to drive the worm wheel and the positioning seat to rotate. The angle of the steel accessories can be accurately adjusted according to the scale of the angle disk, which facilitates the angle positioning of subsequent cutting processing, improves the accuracy of the cutting angle, and meets different processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] In the attached picture: Figure 1 It shows a left-view structural schematic diagram of a positioning fixture for cutting and processing steel parts of a metal bending machine according to an embodiment of the present invention; Figure 2 A schematic diagram of the side view of the structure of the positioning fixture for cutting and processing steel parts of a metal bending machine according to an embodiment of the present invention is shown; Figure 3 It shows a schematic side view of the structure of the positioning fixture for cutting and processing steel parts of a metal bending machine in a separated state according to an embodiment of the present invention; Figure 4 The schematic diagram of the overall rear side structure of the chassis according to an embodiment of the present invention is shown; Figure 5 It shows a schematic side view of the angle frame as a whole and a half-section structure of the angle frame as a whole split according to an embodiment of the present invention; Figure 6 A schematic diagram of a half-section side view of the positioning seat according to an embodiment of the present invention is shown.

[0021] Reference numerals list 1. Base frame; 101. Progressive frame; 102. Slider A; 103. Slider B; 104. Cutting machine; 105. Power contactor; 106. Motor A; 2. Angle frame; 201. Adjustment frame; 202. Worm; 203. Worm wheel; 204. Angle plate; 3. Positioning seat; 301. Motor B; 302. Bevel gear; 303. Bevel gear ring; 304. Opposite slider; 305. Adapter frame; 306. Motor C; 307. Adaptation frame; 308. Semicircular clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined in this manner in the embodiments of the present disclosure.

[0024] The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "One", "one" or "the" and similar words do not indicate a quantity limitation, but indicate that there is at least one. Similarly, "including" or "comprising" and similar words mean that the element or object appearing in front of the word covers the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper", "lower", "front", "back", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present disclosure, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "connect", "fix" and "attach" may refer to two elements or structures being directly connected without other elements or structures between them, or may refer to two elements or structures being indirectly connected through an intermediate element or structure, unless otherwise clearly stated in this article.

[0025] Example: As attached Figure 1 To Attachment Figure 6 As shown: The present invention provides a positioning fixture for cutting and processing steel parts of a metal bending machine, comprising: a base frame 1; a progressive frame 101 is fixedly installed at the top middle position of the base frame 1, a through slide groove is opened at the top middle position of the progressive frame 101, a motor A106 is fixedly installed at the front end position of the slide groove of the progressive frame 101, a slider A102 is slidably connected to the front end position of the slide groove of the progressive frame 101, the top middle position of the slider A102 is fixedly connected to the bottom middle position of the angle frame 2, an adjustment frame 201 is fixedly installed at the inner position of the slider A102, a worm gear 203 is rotatably connected to the inner middle position of the adjustment frame 201, and the top middle position of the worm gear 203 is rotatably connected to the bottom middle position of the positioning seat 3 The positioning seat 3 is fixedly connected at the middle position, and a motor B301 is arranged on the right side of the positioning seat 3. The rotating shaft of the motor B301 is fixedly connected with a bevel gear 302. The bevel gear 302 is located in the internal position of the positioning seat 3. The internal middle position of the positioning seat 3 is rotatably connected with a bevel gear ring 303. The top position of the bevel gear ring 303 is provided with a spiral block. The top position of the positioning seat 3 is provided with six slide grooves, and the spacing between every two adjacent slide grooves is the same. An opposing slider 304 is slidably connected in the six slide grooves of the positioning seat 3. The six opposing sliders 304 are distributed in a ring shape, and an arc block is arranged at the bottom position of each opposing slider 304. The arc block of the opposing slider 304 engages with the spiral block position of the bevel gear ring 303.

[0026] Among them, a slider B103 is slidably connected to the rear end of the slide groove of the progressive frame 101, and the slider A102 and the slider B103 are symmetrically distributed at the front and rear ends of the slide groove of the progressive frame 101. Threaded holes are provided in the middle positions of the slider B103 and the slider A102, and the threaded holes of the slider B103 and the slider A102 are symmetrically designed. The shaft of the motor A106 is located in the middle position of the slide groove of the progressive frame 101, and threads are provided at the front and rear ends of the shaft of the motor A106, and the threads at both ends of the shaft of the motor A106 are symmetrically designed. The front end position of the shaft of the motor A106 is located in the threaded hole of the slider A102, and the rear end position of the shaft of the motor A106 is located in the threaded hole of the slider B103.

[0027] Among them, a power contactor 105 with a U-shaped design is fixedly installed at the top middle and rear end position of the progressive frame 101, and a contact switch is set on the left and right sides of the rear end of the power contactor 105. A cutting machine 104 is set at the top position of the slider B103, and the cutting machine 104 is connected to the two contact switches of the power contactor 105 through a wiring harness.

[0028] Among them, the inner front end position of the adjustment frame 201 is rotatably connected to the worm 202, the worm 202 engages with the front end of the worm wheel 203, and the top middle position of the angle frame 2 is fixedly connected to the angle disk 204. The middle position of the angle disk 204 is a through design, and the upper end of the rod body of the worm wheel 203 passes through the inner middle position of the angle disk 204.

[0029] Among them, an adapter frame 305 is fixedly connected to the top outer position of the opposing slider 304, and a motor C306 is fixedly installed on the outer position of the adapter frame 305. The rotating shaft of the motor C306 is provided with threads, and length scale values ​​are set on both sides of the top of the adapter frame 305. The length scale value of the adapter frame 305 is used to check the moving distance of the adaptation frame 307.

[0030] Among them, the top position of the opposing slider 304 is slidably connected with an adaptable frame 307, a threaded hole is opened in the middle position of the outer side of the adaptable frame 307, and the motor C306 shaft is threadedly rotatably connected in the threaded hole of the adaptable frame 307, and the inner position of the adaptable frame 307 is rotatably connected with a semicircular clamp 308.

[0031] When the slider A102 and the slider B103 are in contact with each other, the cutting processing position of the cutter 104 is located directly above the positioning seat 3, and the lower front end of the cutter 104 squeezes and contacts the two contact switches of the power contactor 105.

[0032] When using: When it is necessary to cut and process the steel parts of the metal bending machine, it is necessary to fix the steel parts of the metal bending machine. First, place the steel parts in the middle of the top of the positioning seat 3, and then start the motor B301. The motor B301 drives the bevel gear 302 to rotate, and the bevel gear 302 is meshed with the bevel gear ring 303, thereby driving the bevel gear ring 303 to rotate. Since the arc block of the opposing slider 304 meshes with the spiral block position of the bevel gear ring 303, the bevel gear ring 303 will drive the six opposing sliders 304 to slide toward the center in the slide groove of the positioning seat 3 at the same time when rotating, until the semicircular clamping block 308 fits and fixes the steel parts; After some of the semicircular clamps 308 fit the steel accessories, there are still some semicircular clamps 308 that have not touched the steel accessories to be processed. At this time, the motors C306 adapted to the semicircular clamps 308 that have not touched the steel accessories are started respectively, and the positions of the semicircular clamps 308 that have not touched the steel accessories are progressively adjusted through the cooperation of the motor C306 shaft thread and the threaded hole of the adaptation frame 307 until all the semicircular clamps 308 fit the circumferential position of the steel accessories, ensuring that the steel accessories are positioned and clamped in multiple directions during the cutting process to avoid loosening during the processing process. In addition, the autonomous position adjustment of the semicircular clamps 308 is more suitable for the fixation of irregular steel accessories, and a memory fixation system is formed, which is convenient for the replacement and adaptation processing of steel accessories of the same model.

[0033] When the steel fittings are fixed for processing, start the motor A106 shaft to rotate. Since the threads at both ends are symmetrical and respectively connected to the slider A102 and the slider B103, the slider A102 and the slider B103 will slide toward the middle at the same time. When the slider A102 fits in the middle of the slider B103, the cutting processing position of the cutting machine 104 is just above the positioning seat 3, and at this time, the lower front end of the cutting machine 104 squeezes and contacts the two contact switches of the power contactor 105, and the power contactor 105 connects the circuit, and the cutting machine 104 is started to cut the steel fittings.

[0034] After the cutting is completed, start the motor A106 in reverse to make the slider A102 and the slider B103 slide apart to both sides, and the two contact switches of the cutting machine 104 and the power contactor 105 are disengaged, and the power supply of the cutting machine 104 is disconnected, which is safer during operation. At the same time, start the motor B301 in reverse to make the opposing slider 304 slide outward, loosen the clamping of the steel accessories, and then take out the processed steel accessories.

[0035] Since the writing of the CNC program may have an angle deviation with the positioned material, if the angle of the steel accessory needs to be adjusted, the worm 202 can also be rotated, the worm 202 drives the worm wheel 203 to rotate, and the worm wheel 203 drives the positioning seat 3 to rotate, and the angle of the steel accessory can be accurately adjusted according to the scale of the angle disk 204, which is convenient for the angle positioning of the subsequent cutting processing.

[0036] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A positioning fixture for cutting and processing steel parts of a metal bending machine, characterized in that: Including: A chassis (1); a progressive frame (101) is fixedly installed at the middle position of the top of the chassis (1). A through chute is provided at the middle position of the top of the progressive frame (101). A motor A (106) is fixedly installed at the front end position of the chute of the progressive frame (101). A slider A (102) is slidably connected to the front end position of the chute of the progressive frame (101). The middle position of the top of the slider A (102) is fixedly connected to the middle position of the bottom of the angle frame (2). An adjusting frame (201) is fixedly installed inside the slider A (102). A worm gear (203) is rotatably connected to the middle position inside the adjusting frame (201). The middle position of the top of the worm gear (203) is fixedly connected to the middle position of the bottom of the positioning seat (3). A motor B (301) is provided at the right side position of the positioning seat (3). The rotating shaft of the motor B (301) is fixedly connected to a bevel gear (302). The bevel gear (302) is located inside the positioning seat (3). A bevel gear ring (303) is rotatably connected to the middle position inside the positioning seat (3). A spiral block is provided at the top position of the bevel gear ring (303). Six chutes are provided at the top position of the positioning seat (3), and the distance between every two adjacent chutes is the same. A counter slider (304) is slidably connected to each of the six chutes of the positioning seat (3). The six counter sliders (304) are distributed in a ring shape, and an arc-shaped block is provided at the bottom position of each counter slider (304). The arc-shaped block of the counter slider (304) meshes with the spiral block position of the bevel gear ring (303).

2. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: A slider B (103) is slidably connected to the rear end position of the chute of the progressive frame (101). The slider A (102) and the slider B (103) are symmetrically distributed at the front and rear ends of the chute of the progressive frame (101). Threaded holes are provided at the middle positions of the slider B (103) and the slider A (102), and the threaded holes of the slider B (103) and the slider A (102) are symmetrically designed.

3. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: The rotating shaft of the motor A (106) is located at the middle position inside the chute of the progressive frame (101). Threads are provided at both the front and rear ends of the rotating shaft of the motor A (106), and the threads at both ends of the rotating shaft of the motor A (106) are symmetrically designed. The front end position of the rotating shaft of the motor A (106) is located inside the threaded hole of the slider A (102), and the rear end position of the rotating shaft of the motor A (106) is located inside the threaded hole of the slider B (103).

4. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: A U-shaped power contactor (105) is fixedly installed at the middle and rear end position of the top of the progressive frame (101). A contact switch is provided on each of the left and right sides at the rear end of the power contactor (105). A cutting machine (104) is provided at the top position of the slider B (103). The cutting machine (104) is connected to the two contact switches of the power contactor (105) through a wire harness.

5. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: The front end of the adjusting frame (201) is rotatably connected to a worm (202), the worm (202) meshes with the front end of a worm wheel (203), and the middle position of the top of the angle frame (2) is fixedly connected to an angle plate (204), the middle position of the angle plate (204) is a through-type design, and the upper end of the rod body of the worm wheel (203) passes through the middle position of the angle plate (204).

6. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: An adapter frame (305) is fixedly connected to the outer position of the top of the opposing slider (304), a motor C (306) is fixedly installed on the outer position of the adapter frame (305), a rotating shaft of the motor C (306) is provided with threads, and length scale values ​​are provided on both sides of the top of the adapter frame (305).

7. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 6, characterized in that: The top position of the opposing slider (304) is slidably connected to an adaptable frame (307), a threaded hole is provided at the middle position of the outer side of the adaptable frame (307), and the rotating shaft of the motor C (306) is threadedly rotatably connected in the threaded hole of the adaptable frame (307), and a semicircular clamping block (308) is rotatably connected to the inner position of the adaptable frame (307).

8. A positioning fixture for cutting and processing steel parts of a metal bending machine as claimed in claim 1, characterized in that: When the slider A (102) and the slider B (103) are in contact with each other, the cutting processing position of the cutting machine (104) is located directly above the positioning seat (3), and the lower front end of the cutting machine (104) is pressed and contacted with two contact switches of the power contactor (105).

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