Cold header clamp device

Abstract

The utility model relates to the technical field of cold heading equipment, and provides a cold header clamp device which comprises a sliding rod which is arranged in a horizontal moving mode. The clamp seats are arranged on the sliding rod in a swinging and sliding mode, the clamp seats are arranged in pairs, the two clamp seats are hinged to each other, the swinging directions of the two clamp seats are opposite, the clamp seats are used for fixing the clamp heads, and the clamp seats are configured to drive the clamp heads to enter or leave the cold heading die after being driven by the sliding rod to move; the sliding piece is slidably arranged on the sliding rod; one end of the first elastic piece acts on the sliding rod, the other end acts on the sliding piece, and the sliding piece is configured to compress the first elastic piece to drive the sliding rod to slide after sliding. By means of the technical scheme, the technical problem that in the prior art, a transmission structure is damaged due to the fact that a clamp is clamped by a die is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of cold heading equipment, in particular, to a cold heading machine clamp device. BACKGROUND

[0002] A cold heading machine is a high-efficiency processing equipment for metal part forming, which makes plastic deformation of workpieces by high pressure of a die. In the cold heading process, the clamp device bears the task of clamping the workpiece and accurately transferring it to the die cavity. In actual application, when the clamp clamps the workpiece into the cold heading die for heading processing, if there is a deviation between the die closing position and the clamp transfer path, or the clamp itself has insufficient transmission precision, the clamp may be squeezed or stuck at the moment of die closing. At this time, if the clamp is forcibly pulled out, the transmission and arrangement structure of the clamp (such as cam, connecting rod, clamp seat, etc.) will bear overload impact, resulting in structure wear, deformation or even breakage. Frequent overload damage not only shortens the service life of the clamp device, but also requires downtime for maintenance, increasing production costs. CONTENT OF THE UTILITY MODEL

[0003] To overcome the above defects, embodiments of the present disclosure provide a cold heading machine clamp device, which solves the technical problem of damage to the transmission structure caused by the clamp being stuck by the die in the prior art.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a cold heading machine clamp device for clamping workpiece blanks into or out of a cold heading die using a clamp head, comprising:

[0005] a slide rod, which is horizontally movably arranged;

[0006] a clamp seat, which is swingably and slidably arranged on the slide rod, the clamp seat is arranged in pairs, two clamp seats are hingedly connected to each other, and the swing directions of the two clamp seats are opposite, the clamp seat is configured to drive the clamp head into or out of the cold heading die after being driven to move by the slide rod;

[0007] a sliding piece, which is slidably arranged on the slide rod;

[0008] a first elastic member, one end of which acts on the slide rod, and the other end of which acts on the sliding piece, the sliding piece is configured to slide and drive the slide rod to slide by compressing the first elastic member.

[0009] For example, the cold heading machine clamp device provided by at least one embodiment of the present disclosure further comprises:

[0010] A support base, the slide rod is slidingly arranged on the support base, the support base is provided with a receiving cavity near one side of the cold header die, the clamp base is configured to slide into or out of the receiving cavity, and the hinge point of each pair of clamp bases is slidingly arranged on the side wall of the receiving cavity.

[0011] For example, the cold header clamp device provided by at least one embodiment of the present disclosure comprises a clamp base provided with a strip-shaped guide groove, two strip-shaped guide grooves in each pair of clamp bases are arranged staggeredly, one end of the slide rod is provided with a sliding guide part, the sliding guide part is slidingly arranged in the two strip-shaped guide grooves, and the sliding guide part is configured to drive the two clamp bases to swing towards or away from each other after being driven to slide by the slide rod.

[0012] For example, the cold header clamp device provided by at least one embodiment of the present disclosure comprises a slide rod, a pair of clamp bases, a sliding part, and a first elastic part, which together form a first material clamping assembly, a plurality of first material clamping assemblies are arranged at equal intervals along the length direction of the support base.

[0013] For example, the cold header clamp device provided by at least one embodiment of the present disclosure further comprises:

[0014] A pushed block is slidingly arranged on the slide rod, the sliding direction is along the radial direction of the slide rod, and the pushed block is located between the sliding part and the support base. The sliding part is configured to abut against the pushed block after being slid towards the support base, so that the slide rod is driven to move by the pushed block.

[0015] For example, the cold header clamp device provided by at least one embodiment of the present disclosure comprises a slide rod, a pair of clamp bases, a sliding part, and a first elastic part, which together form a first material clamping assembly, a plurality of first material clamping assemblies are arranged at equal intervals along the length direction of the support base.

[0016] For example, the cold header clamp device provided by at least one embodiment of the present disclosure comprises a slide rod, a pair of clamp bases, a sliding part, and a first elastic part, which together form a first material clamping assembly, a plurality of first material clamping assemblies are arranged at equal intervals along the length direction of the support base.

[0017] For example, the cold header clamp device provided by at least one embodiment of the present disclosure comprises a slide rod, a pair of clamp bases, a sliding part, and a first elastic part, which together form a first material clamping assembly, a plurality of first material clamping assemblies are arranged at equal intervals along the length direction of the support base.

[0018] A second elastic member, one end of which acts on the bottom wall of the sliding groove, and the other end of which acts on the pushed block, provides a force for the pushed block to move away from the bottom wall of the sliding groove, and for the clamping part to be clamped into the clamping groove.

[0019] For example, the cold header clamp device provided by at least one embodiment of the present disclosure includes a sliding member in the shape of a column, a plurality of accommodating grooves arranged circumferentially on the sliding member and having an opening direction parallel to the axial direction of the sliding member, and a plurality of sliding grooves and pushed blocks arranged circumferentially on the sliding rod.

[0020] For example, the cold header clamp device provided by at least one embodiment of the present disclosure includes a plurality of weight-reducing holes arranged uniformly on the support seat.

[0021] The embodiments of the present disclosure have the following beneficial effects:

[0022] In the present disclosure, when the clamp is subjected to abnormal resistance such as extrusion by a mold, the first elastic member can absorb most of the impact force, so that the force borne by the transmission system and the clamp seat of the clamp is within a safe range, thereby greatly reducing the risk of structural wear, deformation and fracture, significantly prolonging the service life of the clamp device, and improving the stability and durability of the equipment. Due to the buffering protection of the sliding member and the first elastic member, the structural damage of the clamp device is greatly reduced when encountering abnormal conditions, so frequent shutdown for maintenance is not required. This not only saves a lot of maintenance time, but also improves the working efficiency of the cold header, so that production can continue stably, reduces the production stagnation caused by shutdown for maintenance, and effectively reduces the production cost. When the clamp is damaged to a certain extent during work, since the clamp is designed to be detachable, only the clamp needs to be disassembled, repaired or replaced, without the need for large-scale maintenance or replacement of the entire transmission system and clamp seat. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0024] Figure 1 FIG. 1 is a structural schematic diagram of a cold header clamp device according to an embodiment of the present disclosure;

[0025] Figure 2 FIG. 2 is a structural schematic diagram of a cold header clamp device according to an embodiment of the present disclosure; Figure 1 FIG. 3 is a structural schematic diagram of a cold header clamp device according to an embodiment of the present disclosure;

[0026] Figure 3 for Figure 1 A schematic diagram of the slide bar in the embodiment;

[0027] Figure 4 for Figure 1 A schematic diagram of the internal structure of the slide bar in the embodiment;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of part A in the middle.

[0029] In the figure: slide bar-1, first clamping assembly-100, sliding guide part-101, slide groove-102, clamp seat-2, strip guide groove-201, sliding member-3, first elastic member-4, support seat-5, receiving cavity-501, weight reduction hole-502, pushed block-6, receiving groove-601, locking part-602, guide slope-603, locking groove part-604, second elastic member-7. Detailed Implementation

[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0031] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0033] In the present disclosure, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and other orientation or position relationships shown in the drawings are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0035] In addition, in the description of the present application, the terms "first", "second", and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] As Figures 1-5As shown, it shows a cold header clamp device in an embodiment of the present disclosure, for clamping workpiece blank into or out of cold heading die using jaw, for example, slide bar 1 is the basic load bearing and guiding component of the whole clamp device movement, clamp seat 2 appears in pairs, such pair design is to realize bilateral symmetric clamping of workpiece blank, so as to significantly improve the stability and reliability of clamping. The slide groove structure is provided on the clamp seat 2 matched with the slide bar 1, the slide groove is closely combined with the slide bar 1, which can smoothly slide on the slide bar 1 to provide linear motion guide for the clamp seat 2; On the other hand, the swing mechanism is also provided at the connecting part of the clamp seat 2 and the slide bar 1, which is connected through the pin shaft, so that the clamp seat 2 can not only slide along the slide bar 1, but also swing at a certain angle, so as to realize the opening and closing adjustment of the clamp seat 2. The front end of the clamp seat 2 has a structure for fixing the jaw. The structure is composed of clamping groove, bolt or other fastening device, when the external power is transmitted to the slide 3 through the connecting rod structure, and then drives the slide bar 1 to move, the clamp seat 2 will move with the slide bar 1 by virtue of the connection relationship with the slide bar 1. Through the swing mechanism between itself and the slide bar 1, the angle of itself is adjusted flexibly, so as to drive the jaw to enter or leave the cold heading die, and realize the transfer of workpiece blank. The slide 3 is one of the main components of the clamp device movement state. The slide 3 is connected with the external power source through the connecting rod structure, when the external power acts on the connecting rod structure, the slide 3 can slide on the slide bar 1 according to the predetermined direction and distance. The first elastic member 4 can provide buffer force and force transmission effect between the slide 3 and the slide bar 1. The first elastic member 4 is approximately a rigid transmission member for pulling the slide bar 1 to slide in normal work, and when the clamp seat 2 encounters abnormal resistance in the working process, for example, the clamp is pressed by the die, the slide 3 will slide relatively on the slide bar 1, and then compress the first elastic member 4. At this time, the elastic force generated by the first elastic member 4 can effectively buffer the impact force received by the clamp, and protect the transmission system of the clamp device and the clamp seat 2 from excessive damage.

[0037] Specifically, when the clamp is hindered from being pulled out, the clamp seat 2 will transmit this resistance to the slide rod 1 through the connection with the slide rod 1, thereby causing the sliding piece 3 to slide on the slide rod 1. During the sliding process of the sliding piece 3, the first elastic piece 4 will be compressed. This avoids damage to the transmission system of the clamp and the clamp seat 2 due to excessive tensile force; on the other hand, the elastic force will push the slide rod 1 and the clamp seat 2 to make fine adjustments, so that the clamp can adapt to the deviation of the mold position to a certain extent, and try to find the appropriate angle and position to smoothly send the workpiece blank into the mold cavity. If the deviation is within a certain range, through this elastic adjustment, the clamp can successfully send the workpiece blank into the mold for cold heading processing. Even if the clamp cannot be successfully sent in, due to the buffering protection of the first elastic piece 4, the entire transmission system and the clamp seat 2 will not be damaged to a large extent, and only the detachable clamp needs to be disassembled and repaired or replaced. Compared with the way of directly connecting the power to the slide rod 1 in the prior art, the cooperation of the sliding piece 3 and the first elastic piece 4 in the clamp device provides effective buffering protection for the clamp. When the clamp is subjected to abnormal resistance such as mold extrusion, the first elastic piece 4 can absorb most of the impact force, so that the force borne by the transmission system of the clamp and the clamp seat 2 is within a safe range, thereby greatly reducing the risk of structural wear, deformation and fracture, significantly prolonging the service life of the clamp device, and improving the stability and durability of the equipment. Due to the buffering protection effect of the sliding piece 3 and the first elastic piece 4, the structural damage of the clamp device is greatly reduced when encountering abnormal conditions, so frequent shutdown for maintenance is not required. This not only saves a lot of maintenance time, but also improves the working efficiency of the cold header, so that production can continue stably, reduces the production stagnation caused by shutdown for maintenance, and effectively reduces production costs. When the clamp is damaged to a certain extent during work, since the detachable clamp design is adopted, only the clamp needs to be disassembled and repaired or replaced, without the need for large-scale maintenance or replacement of the entire transmission system and the clamp seat 2.

[0038] In some examples, the support base 5 is a key structural component of the cold header clamp device, which provides a support and guide base for the partial movement of the entire clamp device. The slide bar 1 can slide on the support base 5, and this sliding movement provides a stable track for the movement of the slide bar 1. On the side of the support base 5 close to the cold header die, a receiving cavity 501 is designed. The receiving cavity 501 is adapted to the movement track and size of the clamp base 2. The clamp base 2 can smoothly enter or exit the receiving cavity 501 under the drive of the slide bar 1. Specifically, when the clamp device starts to work and the slide bar 1 moves towards the cold header die, the clamp base 2 moves with the slide bar 1, gradually approaches the receiving cavity 501, and finally enters it. When the cold heading operation is completed, the slide bar 1 moves in the opposite direction, and the clamp base 2 moves out of the receiving cavity 501 with the slide bar 1. The sliding support of the support base 5 to the slide bar 1 enhances the stability of the movement of the slide bar 1. The slide bar 1 can move more accurately along the preset direction under the constraint of the support base 5, reducing the shaking and deviation during the movement, thereby providing a guarantee for the stable operation of the clamp base 2 and the entire clamp device. This helps to improve the transfer precision of the clamp to the workpiece, ensures that the workpiece can smoothly enter the cold header die cavity, and improves the quality of cold heading processing.

[0039] In some examples, the clamp base 2 is provided with a strip-shaped guide groove 201, and the two strip-shaped guide grooves 201 in each pair of clamp bases 2 are arranged in a staggered manner. The strip-shaped guide groove 201 is elongated, and its length, width and depth are determined according to the overall size and movement needs of the clamp base 2. The sliding guide part 101 at one end of the slide bar 1 is adapted to the strip-shaped guide groove 201 of the clamp base 2. The sliding guide part 101 is shaped similarly to a sliding block structure, and its size and shape are adapted to the two staggered strip-shaped guide grooves 201. The sliding guide part 101 and the main part of the slide bar 1 are either integrally formed to ensure structural strength and stability, or are fixed at one end of the slide bar 1 by high-strength connection methods such as welding or bolt connection. After the cold header is started, the external power drives the sliding part 3 to slide through the connecting rod structure, thereby moving the slide bar 1. When the slide bar 1 moves, the sliding guide part 101 at one end of the slide bar 1 slides along the strip-shaped guide grooves 201 of the two clamp bases 2. Because the two strip-shaped guide grooves 201 are staggered, as the sliding guide part 101 slides, different directions of force are applied to the two clamp bases 2, driving the two clamp bases 2 to swing towards each other around the hinge point, and the clamp heads gradually close to achieve clamping of the workpiece blank. The simple structure of the strip-shaped guide groove 201 and the sliding guide part 101 realizes the transmission of the linear movement of the slide bar 1 to the swinging movement of the clamp base 2, without the need for complex transmission mechanisms. This simple movement transmission method reduces the number of equipment parts, reduces the manufacturing and installation difficulty, and improves the overall reliability of the equipment. Because there are fewer parts, the risk of failure is also low.

[0040] In some examples, the first material clamping assembly 100 is composed of a slide bar 1, a pair of clamp seat 2, a sliding piece 3 and a first elastic piece 4. The first material clamping assembly 100 is arranged in several groups, and the groups are arranged at equal intervals along the length direction of the support base 5. The support base 5 provides a stable installation basis for the first material clamping assembly 100, and the equal interval arrangement in the length direction of the support base 5 ensures that a certain distance is maintained between each first material clamping assembly 100, which not only avoids mutual interference between the assemblies, but also reasonably utilizes the space of the support base 5. This arrangement helps to improve the overall working efficiency and coordination of the clamp device, so that the clamp device can simultaneously or sequentially operate multiple workpieces when clamping and transferring the workpieces, thereby meeting different production requirements.

[0041] In some examples, the push block 6 is block-shaped and can slide along the radial direction of the slide bar 1. It is in contact with the slide bar 1 between the sliding piece 3 and the support base 5, and the contact is smooth to ensure smooth sliding. One end of the first elastic piece 4 is connected to the side of the slide bar 1 away from the support base 5, and the other end is connected to the sliding piece 3. When the sliding piece 3 slides towards the support base 5 under force, it will first compress the first elastic piece 4. The first elastic piece 4 generates elastic force under pressure, which reserves force for the slide bar 1 to slide away from the support base 5. The push block 6 becomes the support point for the slide bar 1 to slide towards the support base 5 after the sliding piece 3 continues to slide and abuts against it. The push block 6 transmits the pushing force of the sliding piece 3 to the slide bar 1 and pushes the slide bar 1 to move towards the support base 5. The first elastic piece 4 and the push block 6 respectively provide force and support for the sliding of the slide bar 1 on both sides, making the movement control of the slide bar 1 more accurate, enabling the clamp seat 2 to accurately reach the predetermined position, and improving the cold heading machining precision.

[0042] In some examples, the side of the sliding piece 3 close to the push block 6 is provided with a containing groove 601. The containing groove 601 is designed to be just large enough to contain the push block 6, and the inner wall of the containing groove 601 is provided with a clamping portion 602. The clamping portion 602 can be a block-shaped or strip-shaped structure protruding from the inner wall. The shape of the push block 6 is matched with the containing groove 601, and the push block 6 can smoothly enter or exit the containing groove 601 when the sliding piece 3 slides. The surface of the push block 6 at the position abutting against the clamping portion 602 is smooth to reduce the friction when the two are in contact, while ensuring that the force can be stably transmitted under force. The design of the containing groove 601 and the clamping portion 602 ensures that the sliding piece 3 and the push block 6 can accurately abut when in contact, ensuring that the force transmission is more stable and reliable. When the clamping portion 602 abuts against the push block 6, it can uniformly transmit the pushing force of the sliding piece 3 to the push block 6, and then to the slide bar 1, avoiding deviation or loss in the force transmission process, ensuring the stability of the movement of the clamp device, and helping to improve the precision of cold heading machining.

[0043] In some examples, the pushing block 6 is provided with a guide slope 603 on the side close to the sliding piece 3. The guide slope 603 is inclined from the edge of the pushing block 6 to the center. Such design can enable the clamping part 602 to convert part of the pushing force of the sliding piece 3 into a force that makes the pushing block 6 slide radially inward when the clamping part 602 contacts the pushing block 6. The pushing block 6 is also provided with a clamping groove part 604. The shape of the clamping groove part 604 matches the clamping part 602. When the pushing block 6 slides radially inward under the action of the guide slope 603 and completely enters the accommodating groove 601, the clamping part 602 can be accurately clamped into the clamping groove part 604, thereby realizing stable connection between the sliding piece 3 and the pushing block 6 and ensuring effective force transmission. The clamping part 602 on the inner wall of the accommodating groove 601 on the sliding piece 3 closely matches the guide slope 603 and the clamping groove part 604 of the pushing block 6. When the sliding piece 3 slides toward the pushing block 6 under the action of external force, the clamping part 602 first contacts and slides along the guide slope 603 to abut against the guide slope 603, thereby pushing the pushing block 6 to slide radially inward. As the sliding piece 3 continues to slide, the pushing block 6 gradually enters the accommodating groove 601 until the clamping part 602 is clamped into the clamping groove part 604, thereby completing the connection and force transmission preparation of the two.

[0044] After the clamp holder 2 clamps the workpiece, the slide bar 1 continues to move to move the workpiece to the cold heading die for processing. If the clamp is clamped by the die during processing, the clamp holder 2 transmits resistance to the sliding piece 3 through the slide bar 1, thereby compressing the first elastic member 4. When the first elastic member 4 is compressed to contact the constraint of the clamp, it starts to rebound, pushes the sliding piece 3 to move away from the support seat 5, that is, moves to the side closer to the clamp than the original position. At this time, the clamping part 602 is separated from the clamping groove part 604, and the pushing block 6 slides radially outward away from the accommodating groove 601 under the action of the slide bar 1 through the sliding abutment of the clamping part 602 and the guide slope 603. After that, every time it is driven, the position of the sliding piece 3 changes, and the position of the clamp holder 2 moved by the slide bar 1 also changes accordingly, so that the damaged clamp is kept away from the die and no longer enters the die. Such obvious change in running track and specific length characteristics are easy to be found by the operator, so that timely maintenance can be carried out. When the clamp is clamped by the die, the sliding piece 3 and the pushing block 6 can quickly respond to the compression and rebound of the first elastic member 4 to change the relative position and keep the clamp away from the die. Such fast response mechanism can avoid further damage of the clamp and the die under continuous wrong operation, effectively protect the key parts of the equipment, and reduce the maintenance cost. The clamp no longer enters the die, which eliminates the possibility of more serious damage caused by repeated entry into the die, saves time for equipment maintenance, and reduces the impact of equipment downtime on production progress. The change in the position of the sliding piece 3 causes obvious change in the running track and length characteristics of the clamp, which is easy to be noticed by the operator. Compared with some hidden faults, such intuitive prompt can quickly locate the problem for the operator, thereby improving the efficiency of troubleshooting.

[0045] In some examples, the slide rod 1 is provided with a radial slide groove 102, the shape of which is adapted to the push block 6. The length and depth of the slide groove 102 are carefully designed to ensure that the push block 6 can smoothly slide in the slide groove 102 while effectively limiting the movement range of the push block 6. The push block 6 is precisely arranged in the slide groove 102, and its shape closely fits the slide groove 102, allowing it to freely slide along the radial direction of the slide rod 1 in the slide groove 102. The push block 6 and the slide groove 102 have high precision in cooperation, which not only ensures the flexibility of the push block 6 sliding in the slide groove 102, but also ensures that the push block 6 will not come out of the slide groove 102 during operation, maintaining the stability of the entire device structure. The second elastic member 7 provides a spring force to the push block 6 away from the bottom wall of the slide groove 102. The second elastic member 7 is usually a spring with a suitable spring coefficient, which is calculated and verified by tests to ensure that it can provide sufficient force to make the push block 6 smoothly engage the clamping portion 602 into the clamping groove portion 604 under normal working conditions, and to make the push block 6 perform locking or unlocking actions according to actual conditions when subjected to external forces. The spring force provided by the second elastic member 7 helps the clamping portion 602 to be more firmly engaged into the clamping groove portion 604. The continuous force exerted by the second elastic member 7 during device operation can ensure the tight connection between the clamping portion 602 and the clamping groove portion 604, prevent them from loosening due to external factors such as vibration and impact, and ensure reliable force transmission between the sliding member 3 and the push block 6, thereby improving the stability and reliability of the clamp device during normal operation.

[0046] In some examples, the sliding member 3 is designed as a cylindrical member with a plurality of accommodating grooves 601 uniformly arranged around its circumference, and the opening direction of the accommodating grooves 601 is parallel to the axial direction of the sliding member 3. Such a design allows the sliding member 3 to cooperate with the push block 6 at multiple positions around the circumference, increasing the redundancy and flexibility of force transmission. The slide rod 1 is also provided with a plurality of slide grooves 102 and corresponding push blocks 6 arranged around its circumference. The circumferential arrangement of the slide grooves 102 and the push blocks 6 is adapted to the arrangement of the accommodating grooves 601 on the sliding member 3, ensuring accurate cooperation between the components.

[0047] In some examples, the weight-reducing holes 502 directly reduce the amount of material used in the support seat 5, thereby reducing the weight of the entire cold header clamp device. Lighter equipment is more convenient during installation, debugging, and handling, and also reduces the overall load of the cold header, accordingly reducing the requirement for the foundation support of the equipment, which is beneficial to the layout and installation of the equipment. In some cases, the weight-reducing holes 502 can also have a certain heat dissipation effect. The cold header generates heat during operation, and the weight-reducing holes 502 increase the heat dissipation surface area of the support seat 5, which helps to dissipate heat and prevents deformation of the support seat 5 and related components due to heat accumulation, further ensuring the stability and reliability of the clamp device.

[0048] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure rather than limit the present disclosure. Although the present disclosure is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. A cold header tong apparatus for gripping a workpiece blank into or out of a cold heading die using a tong head, characterized by, The utility model relates to a cold header clamp device, including: A slide bar (1) is horizontally arranged; Clamp seat (2) swing and slide arrangement on the slide bar (1), the clamp seat (2) is arranged in pairs, two clamp seat (2) are hinged to each other, and the swing direction of two clamp seat (2) is opposite, the clamp seat (2) is used for fixing the head of forceps, the clamp seat (2) is configured to be driven into or out of the cold header die after being driven by the slide bar (1) moves the head of forceps; Slide (3) is arranged on the slide bar (1); First elastic member (4) one end acts on the slide bar (1), the other end is used for acting on the slide (3), the slide (3) is configured to slide and drive the slide bar (1) to slide by compressing the first elastic member (4).

2. A cold header die assembly as defined in claim 1 wherein, The utility model relates to a cold header clamp device still includes: Support seat (5), the slide bar (1) is arranged on the support seat (5), and the side of the support seat (5) close to the cold header die has accommodating cavity (501), the clamp seat (2) is configured to slide and enter or exit the accommodating cavity (501), and the hinge point of each pair of clamp seat (2) is arranged on the side wall of the accommodating cavity (501).

3. A cold header die holder assembly as defined in claim 1 wherein, The clamp seat (2) has strip-shaped guide slot (201), two strip-shaped guide slot (201) in each pair of clamp seat (2) are staggered, one end of the slide bar (1) has slide guide (101), slide guide (101) is arranged in two strip-shaped guide slot (201) simultaneously, slide guide (101) is configured to be driven to slide after being driven by the slide bar (1), can drive two clamp seat (2) swing to each other close or away.

4. A cold header die assembly as defined in claim 2 wherein, The slide bar (1), a pair of clamp seat (2), the slide (3), the first elastic member (4) jointly constitute first clamp material component (100), and the first clamp material component (100) is several groups, and several first clamp material components (100) are arranged along the length direction of the support seat (5) equidistantly.

5. A cold header die holder assembly as defined in claim 2 wherein, The utility model relates to a cold header clamp device still includes: Pushed block (6), the pushed block (6) is arranged on the slide bar (1), and the sliding direction is along the radial direction of the slide bar (1), and the pushed block (6) is located between the slide (3) and the support seat (5), the slide (3) is configured to, after sliding to the direction close to the support seat (5), abuts with the pushed block (6), so that the slide bar (1) is moved by the pushed block (6).

6. A cold header die assembly as defined in claim 5 wherein, The side of the slide (3) close to the pushed block (6) has accommodating groove (601), the inner wall of accommodating groove (601) is provided with clamping portion (602), the slide (3) is configured to, after sliding, the pushed block (6) enters or exits the accommodating groove (601), and after entering, the clamping portion (602) abuts with the pushed block (6).

7. A cold header die assembly as defined in claim 6 wherein, The pushing block (6) has a guide inclined surface (603) on the side close to the sliding piece (3), and the pushing block (6) also has a clamping groove part (604), the sliding piece (3) slides to the direction of the pushing block (6), the clamping part (602) slides against the guide inclined surface (603), drives the pushing block (6) to slide radially inward, the sliding piece (3) continues to slide, the pushing block (6) enters the containing groove (601), and the clamping part (602) is clamped into the clamping groove part (604).

8. A cold header die assembly as defined in claim 7 wherein, The sliding rod (1) has a radial sliding groove (102), the pushing block (6) is slidably arranged in the sliding groove (102), and the cold header clamp device further comprises: A second elastic member (7) acts on the bottom wall of the sliding groove (102) at one end and acts on the pushing block (6) at the other end, providing a force for the pushing block (6) to move away from the bottom wall of the sliding groove (102) and for the clamping part (602) to be clamped into the clamping groove part (604).

9. A cold header die assembly as defined in claim 8 wherein, The sliding piece (3) is a cylindrical piece, the containing groove (601) is a plurality of containing grooves, which are arranged circumferentially on the sliding piece (3) and have an opening direction parallel to the axial direction of the sliding piece (3), the sliding groove (102) and the pushing block (6) are a plurality of sliding grooves and pushing blocks, and a plurality of the sliding grooves (102) and the pushing blocks (6) are arranged circumferentially on the sliding rod (1).

10. A cold header die holder assembly as defined in claim 2 wherein, The support seat (5) is uniformly arranged with a plurality of lightening holes (502).

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