Clamp for electric upsetter and electric upsetter

Abstract

The application provides a clamp for an electric upsetting machine and the electric upsetting machine, and belongs to the technical field of bar upsetting. The clamp comprises two fixed bases, two sliding blocks and an adjusting mechanism. The two fixed bases are arranged at intervals along the horizontal direction on the electric upsetting machine, and each fixed base is fixedly connected with the electric upsetting machine. The two sliding blocks are slidingly connected to the two fixed bases respectively along the horizontal direction. The two sliding blocks are drivingly connected with a driving mechanism, and the driving mechanism is used for driving the two sliding blocks to move towards or away from each other. The opposite sides of the two sliding blocks are each provided with a clamping block, and the clamping block is used for being in contact with a bar. The adjusting mechanism is arranged on one of the sliding blocks and is drivingly connected with the corresponding sliding block, so as to adjust the distance between the sliding block and the bar. The clamp for the electric upsetting machine and the electric upsetting machine provided by the application can directly compensate the wear of the clamping block through the adjusting mechanism, without disassembling the clamping block, so that the clamping block is not scrapped too early due to slight wear, and the actual use period of the clamping block is prolonged.

Description

Technical Field

[0001] This application belongs to the field of bar stock upsetting technology, and more specifically, relates to a clamp for an electric upsetting machine and an electric upsetting machine. Background Technology

[0002] Electric upsetting machines are important forming equipment in the field of metal hot working, mainly used for local upsetting of bar stock. They are widely used in the manufacturing process of key components such as automobile engines and internal combustion engines, and are especially suitable for the precision forming of slender rods such as valve stems. As a core component of the engine's valve train system, the transition area between the valve stem and the valve head needs to be upset to achieve local material accumulation and plastic deformation to meet the requirements of mechanical properties and dimensional accuracy in subsequent processing. Electric upsetting machines, with their efficient and controllable heating and pressurization capabilities, have become key equipment for processing such parts.

[0003] Currently, the upsetting system of an electric upsetting machine typically consists of core components such as an anvil, clamps, auxiliary clamps, and push rods. Among them, the clamps are located below the upsetting area and use two clamping blocks to hold and position the non-upsetting section of the bar stock, ensuring the stability of the upsetting part during heating and pressurization.

[0004] The inventors discovered that the high temperature in the upsetting region is transmitted to the clamps, causing the clamping blocks directly holding the bar stock to be exposed to a high-temperature environment for extended periods. This leads to a decrease in their hardness and wear resistance, exacerbating frictional wear with the non-upsetting sections of the bar stock. When one clamping block wears more due to high temperature than the other, a height difference or axial misalignment occurs between the two clamping surfaces, resulting in clamp misalignment. Misalignment reduces the clamping and positioning accuracy of the bar stock, causing force imbalance in the upsetting region and resulting in quality problems such as product eccentricity, uneven wall thickness in the transition area, and excessive coaxiality deviation between the head and the bar. To solve the misalignment problem, the clamping blocks need to be replaced. However, individual clamping blocks have low wear (only one side or local wear), and replacing the entire set would waste unworn clamping blocks. Furthermore, replacement requires machine shutdown for disassembly, installation, and calibration, frequent shutdowns disrupting the continuity of the process, reducing the effective operating time of the equipment and the efficiency of the upsetting process. Utility Model Content

[0005] The purpose of this application is to provide a clamp for an electric upsetting machine and an electric upsetting machine, so as to solve the technical problems of misalignment caused by one-sided wear of the clamping blocks due to high temperature wear, waste caused by low wear of individual clamping blocks during replacement, and frequent machine stoppages affecting the upsetting process efficiency.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A clamp for an electric upsetting machine is provided, comprising: Two fixed seats are arranged horizontally at intervals on the electric upsetting machine, and each fixed seat is fixedly connected to the electric upsetting machine; Two sliders are slidably connected to two fixed seats in the horizontal direction, respectively; the two sliders are driven by a driving mechanism, which drives the two sliders to move towards or away from each other; each of the two sliders has a clamping block on its opposite side for clamping the bar stock; and An adjustment mechanism is provided on one of the sliders and is used for transmission connection with the corresponding slider. Wherein, after the clamping blocks wear out, the distance between the slider and the bar is adjusted by the adjustment mechanism so that the distance between each clamping block and the bar is equal.

[0007] In one possible implementation, the drive mechanism includes: A first rack is fixedly mounted on one of the sliders; The second rack is slidably connected to another slider in the horizontal direction and is drive-connected to the adjustment mechanism; the adjustment mechanism is used to adjust the relative position of the second rack and the slider, thereby adjusting the distance between the slider and the bar stock; and Two drive gears are rotatably connected to the two fixed seats respectively, and mesh with the first rack and the second rack respectively; the axial direction of the drive gears is perpendicular to the moving direction of the sliding block; the two drive gears are connected by a synchronous drive component to drive the two drive gears to rotate synchronously in opposite directions, so that the two sliders move towards each other or away from each other.

[0008] In one possible implementation, the synchronization drive component includes: Two sprockets are coaxially connected to the two drive gears, respectively; A cylinder, mounted on the electric upsetting machine; and Two traction chains are respectively wound around the two sprockets, and the two traction chains are wound in opposite directions; one end of each of the two traction chains is fixedly connected to the power output end of the cylinder, and the other end of each is connected to a first reset component; The power output end of the cylinder is adapted to drive the sprocket to rotate via the traction chain, and the first reset member is used to drive the sprocket to rotate in the opposite direction via the traction chain.

[0009] In one possible implementation, the first reset component is two tension springs, both located between the traction chain and the electric upsetting machine, with each tension spring having its two ends fixedly connected to the traction chain and the electric upsetting machine, respectively.

[0010] In one possible implementation, the adjustment mechanism includes: The screw is slidably inserted into the corresponding slider, and one end of it is fixedly connected to the second rack. An adjusting nut is disposed on the side of the corresponding slider facing away from the other slider, and is threadedly connected to the other end of the screw; and The second reset component is disposed between the second rack and the corresponding slider; When the adjusting nut is tightened, it is adapted to move the corresponding slider toward the other slider; when the adjusting nut is loosened, the second reset member is adapted to move the corresponding slider away from the other slider.

[0011] In one possible implementation, the adjusting nut is threaded with a fixing bolt, the end of which is adapted to abut against the screw to fix the position of the adjusting nut.

[0012] In one possible implementation, the second reset member is two compression springs arranged side by side between the second rack and the corresponding slider, and the two ends of each compression spring are fixedly connected to the second rack and the corresponding slider, respectively.

[0013] In one possible implementation, a rotary bearing is coaxially rotatably connected to the drive gear, and the rotary bearing is fixedly connected to the fixed base.

[0014] In one possible implementation, the two clamping blocks have grooves on opposite sides for the bar stock to be inserted.

[0015] In this embodiment, the bar stock to be processed is placed between two clamping blocks, and its position is adjusted to the required center axis for processing. The drive mechanism is activated, causing the two sliders to move towards each other along the fixed base, gradually bringing the clamping blocks closer together and clamping the bar stock until the preset clamping force is reached. The electric upsetting machine heats and upsets the bar stock; after processing, the drive mechanism moves the sliders away from each other, the clamping blocks release the bar stock, and the processed part is removed. When the clamping blocks experience surface wear due to long-term clamping of the bar stock (e.g., reduced clamping block thickness, uneven clamping surface), causing the bar stock to shift during clamping (e.g., unequal distances between the two clamping blocks and the bar stock, with one side having a larger gap and the other a smaller gap), adjustment is required. The adjustment mechanism located on one of the sliders is operated, causing the corresponding slider to slide along the fixed base, adjusting the distance between the slider and the bar stock; ensuring that the distances between the two clamping blocks and the bar stock are restored to equal after adjustment. After adjustment, the drive mechanism is used again to clamp the bar stock, verifying the clamping stability and bar stock alignment. After confirming that everything is correct, processing continues.

[0016] Compared with the prior art, the clamp for an electric upsetting machine provided in this application embodiment can directly compensate for the wear of the clamping block through the adjustment mechanism, without disassembling the clamping block, avoiding premature scrapping of the clamping block due to slight wear, and extending the actual service life of the clamping block; it only needs to be replaced when the clamping block is worn to the point that it cannot be compensated by adjustment, thus reducing the replacement frequency of the clamping block and the cost of consumables.

[0017] The technical solution adopted in this application also provides an electric upsetting machine, including the clamps for the electric upsetting machine proposed in any of the foregoing claims. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural diagram of the clamps for an electric upsetting machine provided in the embodiments of this application. Figure 1 ; Figure 2 This is a front view of the clamp for an electric upsetting machine provided in an embodiment of this application; Figure 3 This is a schematic diagram of the rear view structure of the clamp for an electric upsetting machine provided in an embodiment of this application; Figure 4 A three-dimensional structural diagram of the clamps for an electric upsetting machine provided in the embodiments of this application. Figure 2 (The electric upsetting machine is omitted for clarity.) Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle; Figure 6 for Figure 4 A schematic cross-sectional view of the structure shown. Figure 7 A three-dimensional structural diagram of the clamps for an electric upsetting machine provided in the embodiments of this application. Figure 3 (The electric upsetting machine and mounting base are omitted for clarity.) Figure 8 for Figure 7 A magnified structural diagram of region B in the middle; The following are the labeling elements in the figure: 1. Fixed base; 2. Slider; 3. Clamping block; 31. Groove; 4. Drive mechanism; 41. First rack; 42. Second rack; 43. Drive gear; 431. Rotary bearing; 5. Synchronous drive component; 51. Sprocket; 52. Cylinder; 53. Traction chain; 54. Tension spring; 6. Adjustment mechanism; 61. Screw; 62. Adjusting nut; 621. Fixing bolt; 63. Compression spring; 7. Electric upsetting machine; 8. Bar stock. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Please refer to the following: Figures 1 to 8 The clamps for an electric upsetting machine and the electric upsetting machine 7 provided in this application will now be described. The clamps for the electric upsetting machine include two fixed seats 1, two sliders 2, and an adjusting mechanism 6.

[0025] Two fixed seats 1 are arranged horizontally at intervals on the electric upsetting machine 7, and each fixed seat 1 is fixedly connected to the electric upsetting machine 7.

[0026] Two sliders 2 are slidably connected to two fixed seats 1 in the horizontal direction respectively; the two sliders 2 are connected to a drive mechanism 4, which is used to drive the two sliders 2 to move towards each other or away from each other; a clamping block 3 is provided on the opposite side of each of the two sliders 2, which is used to connect with the bar stock 8.

[0027] The adjustment mechanism 6 is mounted on one of the sliders 2 and is used to drive the corresponding slider 2 to adjust the distance between the slider 2 and the bar stock 8.

[0028] In this process, after the clamping block 3 wears out, the distance between the slider 2 and the bar 8 is adjusted by the adjusting mechanism 6 so that the distance between each clamping block 3 and the bar 8 is equal.

[0029] The mounting base is provided by the fixed base 1, the slider 2 slides with the fixed base 1 to move, the drive mechanism 4 provides power to make the slider 2 move synchronously, and the adjustment mechanism 6 compensates for the distance deviation after the clamping block 3 wears, so as to ensure that the clamping center remains unchanged.

[0030] The adjustment mechanism 6 can be set to bidirectional adjustment (i.e., both sliders 2 are equipped with adjustment mechanism 6), or an electric push rod can be used to replace manual adjustment to improve the degree of automation.

[0031] In this embodiment, the bar stock 8 to be processed is placed between two clamping blocks 3, and the position of the bar stock 8 is adjusted to the central axis required for processing. The drive mechanism 4 is started, driving the two sliders 2 to move towards each other along the fixed base 1, so that the clamping blocks 3 on both sides gradually approach and clamp the bar stock 8 until the preset clamping force is reached. The electric upsetting machine 7 heats and upsets the bar stock 8; after processing, the drive mechanism 4 drives the sliders 2 to move in opposite directions, the clamping blocks 3 release the bar stock 8, and the processed part is taken out. When the clamping blocks 3 experience surface wear due to long-term clamping of the bar stock 8 (such as a decrease in the thickness of the clamping blocks 3 or an uneven clamping surface), causing the bar stock 8 to deviate during clamping (such as unequal distances between the two clamping blocks 3 and the bar stock 8, with a larger gap on one side and a smaller gap on the other), adjustment is required. The adjustment mechanism 6 set on one of the sliders 2 is operated to drive the corresponding slider 2 to slide along the fixed base 1, adjusting the distance between the slider 2 and the bar stock 8; ensuring that the distance between the two clamping blocks 3 and the bar stock 8 is restored to equal after adjustment. After adjustment, the clamping block 3 is driven by the drive mechanism 4 to clamp the bar stock 8 again, verifying the clamping stability and the centering of the bar stock 8. After confirming that there are no errors, processing continues.

[0032] Compared with the prior art, the clamp for the electric upsetting machine provided in this application embodiment can directly compensate for the wear of the clamping block 3 through the adjustment mechanism 6, without disassembling the clamping block 3, avoiding premature scrapping of the clamping block 3 due to slight wear, and extending the actual service life of the clamping block 3; it only needs to be replaced when the clamping block 3 is worn to the point that it cannot be compensated by adjustment, thus reducing the replacement frequency and consumable cost of the clamping block 3.

[0033] In some embodiments, the drive mechanism 4 described above may employ, for example... Figure 6 and Figure 7 The structure shown is described in the following document. Figure 6 and Figure 7 The drive mechanism 4 includes a first rack 41, a second rack 42, and two drive gears 43.

[0034] The first rack 41 is fixedly mounted on one of the sliders 2.

[0035] The second rack 42 is slidably connected to another slider 2 in the horizontal direction, and is connected to the adjustment mechanism 6 in a transmission manner; the adjustment mechanism 6 is used to adjust the relative position of the second rack 42 and the slider 2, thereby adjusting the distance between the slider 2 and the bar 8.

[0036] Two drive gears 43 are rotatably connected to two fixed seats 1 respectively, and mesh with the first rack 41 and the second rack 42 respectively; the axial direction of the drive gears 43 is perpendicular to the moving direction of the sliding block; the two drive gears 43 are connected to a synchronous drive component 5 to drive the two drive gears 43 to rotate synchronously in opposite directions, so that the two sliders 2 move towards each other or away from each other.

[0037] When the drive mechanism 4 is working, the synchronous drive component 5 drives the two drive gears 43 to rotate synchronously in opposite directions, thereby driving the first rack 41 (fixed to the slider 2) and the second rack 42 (transmitted with the adjustment mechanism 6) to move the corresponding slider 2 in opposite directions; after the clamping block 3 wears, the adjustment mechanism 6 adjusts the relative position of the second rack 42 and the slider 2 to compensate for the wear.

[0038] Linear transmission is achieved through the meshing of rack and pinion, and synchronous drive component 5 ensures that the two gears rotate in opposite directions at the same speed, so that the slider 2 moves the same distance; adjustment mechanism 6 indirectly adjusts the distance between slider 2 and bar 8 by changing the relative position of the second rack 42 and slider 2.

[0039] The synchronous drive component 5 can be replaced with a dual-output shaft motor with a gear reducer, or a belt drive can be used instead of a sprocket drive to reduce noise.

[0040] By adopting the above technical solution, the rack and pinion transmission has high precision, the synchronous drive component 5 ensures the synchronous movement of the slider 2 and avoids clamping deviation; the adjustment mechanism 6 is integrated with the rack, with a compact structure and fast adjustment response.

[0041] In some embodiments, the aforementioned synchronous drive component 5 may employ, for example... Figure 3 , Figure 4 , Figure 6 and Figure 7 The structure shown is described in the following document. Figure 3 , Figure 4 , Figure 6 and Figure 7The synchronous drive component 5 includes two sprockets 51, a cylinder 52, and two traction chains 53.

[0042] Two sprockets 51 are coaxially connected to two drive gears 43 respectively. Cylinder 52 is mounted on the electric upsetting machine 7.

[0043] Two traction chains 53 are respectively wound around two sprockets 51, and the winding directions of the two traction chains 53 are opposite; one end of each traction chain 53 is fixedly connected to the power output end of the cylinder 52, and the other end is connected to the first reset component.

[0044] The power output end of the cylinder 52 is adapted to drive the sprocket 51 to rotate via the traction chain 53, and the first reset component is used to drive the sprocket 51 to rotate in the opposite direction via the traction chain 53.

[0045] When cylinder 52 extends or retracts, the power output end drives one of the sprockets 51 to rotate via the traction chain 53, which in turn drives the other sprocket 51 to rotate in the opposite direction, thereby driving the drive gear 43 and the slider 2 to move. When cylinder 52 resets, the first reset component pulls the sprocket 51 to rotate in the opposite direction via the traction chain 53, and the slider 2 returns to its original position.

[0046] The cylinder 52 provides linear driving force, which converts linear motion into rotational motion through the meshing of the traction chain 53 and the sprocket 51. The chains wound in opposite directions enable the two sprockets 51 to rotate in opposite directions. The first reset component provides reset force when the cylinder 52 is depressurized, ensuring that the slider 2 returns to its position reliably.

[0047] Cylinder 52 can be replaced with a hydraulic cylinder or an electric actuator to provide greater driving force, or a timing pulley can be used instead of sprocket 51 to reduce maintenance requirements.

[0048] By adopting the above technical solutions, the pneumatic drive has fast response and low cost, and the chain and sprocket 51 transmission has strong load-bearing capacity; the reset component ensures the stable movement of the slider 2 and avoids jamming.

[0049] In some embodiments, the first reset member described above may be as follows: Figure 4 , Figure 6 and Figure 7 The structure shown is described in the following document. Figure 4 , Figure 6 and Figure 7 The first reset component consists of two tension springs 54, both located between the traction chain 53 and the electric upsetting machine 7, with each tension spring 54 having its two ends fixedly connected to the traction chain 53 and the electric upsetting machine 7, respectively.

[0050] When cylinder 52 retracts, traction chain 53 pulls sprocket 51 to rotate, and tension spring 54 is stretched to store elastic potential energy; when cylinder 52 extends, tension spring 54 releases potential energy, and pulls sprocket 51 to rotate in the opposite direction through chain, and slider 2 returns to its original position.

[0051] The tension spring 54 provides a restoring force by utilizing elastic deformation, and its two ends are fixed to the chain and the electric upsetting machine 7 respectively, forming a stable force transmission path.

[0052] Gas springs or disc springs can be used instead of tension springs 54 to adapt to high-frequency reset scenarios and reduce spring fatigue.

[0053] By adopting the above technical solution, the structure is simple and the cost is low. The tension spring 54 has a linear and stable reset force, ensuring the return accuracy of the slider 2. The installation space is small and it is easy to maintain.

[0054] In some embodiments, the adjustment mechanism 6 described above may employ, for example... Figures 4 to 8 The structure shown is described in the following document. Figures 4 to 8 The adjusting mechanism 6 includes a screw 61, an adjusting nut 62, and a second reset component.

[0055] The screw 61 is slidably inserted into the corresponding slider 2, and one end of it is fixedly connected to the second rack 42.

[0056] The adjusting nut 62 is located on the side of the corresponding slider 2 facing away from the other slider 2, and it is threadedly connected to the other end of the screw 61.

[0057] The second reset component is disposed between the second rack 42 and the corresponding slider 2.

[0058] When the adjusting nut 62 is tightened, it is adapted to move the corresponding slider 2 toward the other slider 2; when the adjusting nut 62 is loosened, the second reset member is adapted to move the corresponding slider 2 away from the other slider 2.

[0059] After the clamping block 3 wears out, when the adjusting nut 62 is tightened (because the drive gear 43 meshes with the second rack 42, the second rack 42 will not move relative to the drive gear 43, and the slider 2 will slide relative to the second rack 42), the adjusting nut 62 pushes the slider 2 to move towards the bar 8 (shortening the distance); when the nut is loosened, the second reset component pushes the slider 2 to move away from the bar 8 (increasing the distance), thus achieving distance adjustment.

[0060] The screw 61 and the adjusting nut 62 are threaded together to convert the rotational motion into linear motion. The adjusting nut 62 changes its relative position with the second rack 42 by pushing the slider 2. The second reset component provides a reverse thrust when the nut is loosened to ensure the reversibility of the adjustment.

[0061] By adopting the above technical solution, the thread adjustment accuracy is high and the wear amount can be slightly compensated; the second reset component ensures that the position of the slider 2 is stable after adjustment and the operation is convenient.

[0062] In some embodiments, the adjusting nut 62 may be adopted as follows: Figure 5 and Figure 8 The structure shown is described in the following document. Figure 5 and Figure 8 The adjusting nut 62 is threaded with a fixing bolt 621. The end of the fixing bolt 621 is adapted to abut against the screw 61 to fix the position of the adjusting nut 62.

[0063] After the position of the adjusting nut 62 is determined, tighten the fixing bolt 621 so that its end abuts against the screw 61, restricting the relative rotation between the adjusting nut 62 and the screw 61, and fixing the adjusted position.

[0064] Anti-loosening nuts (such as nylon lock nuts) can be used instead of fixing bolts 621, or locking washers can be added to further prevent loosening.

[0065] By adopting the above technical solution, the clamping distance change caused by the loosening of the adjusting nut 62 after adjustment is avoided, thus improving long-term stability; the structure is simple and the anti-loosening effect is reliable.

[0066] In some embodiments, the second reset member may be as follows: Figure 7 and Figure 8 The structure shown is described in the following document. Figure 7 and Figure 8 The second reset component consists of two compression springs 63, which are arranged side by side between the second rack 42 and the corresponding slider 2, and the two ends of each compression spring 63 are fixedly connected to the second rack 42 and the corresponding slider 2, respectively.

[0067] When the adjusting nut 62 is loosened, the compression spring 63 releases its elastic potential energy, pushing the second rack 42 to move relative to the slider 2, and the slider 2 moves away from the bar stock 8; when the nut is tightened, the slider 2 compresses the spring 63, and the spring stores potential energy. The compression spring 63 provides continuous thrust through pre-compression, driving the slider 2 to move when the adjusting nut 62 is loosened, and their parallel arrangement ensures that the thrust is evenly distributed.

[0068] By adopting the above technical solution, the compression spring 63 has a large and stable restoring force, and the parallel arrangement prevents the slider 2 from tilting; the structure is compact and the service life is long.

[0069] In some embodiments, the drive gear 43 may be as follows: Figure 6 and Figure 7 The structure shown is described in the following document. Figure 6 and Figure 7 A rotating bearing 431 is coaxially connected to the drive gear 43, and the rotating bearing 431 is fixedly connected to the fixed base 1.

[0070] When the drive gear 43 rotates, the inner ring of the rotary bearing 431 rotates synchronously with the drive gear 43, while the outer ring is fixed to the fixed seat 1, reducing direct friction between the gear and the fixed seat 1. The rotary bearing 431 uses rolling friction instead of sliding friction to reduce the rotational resistance of the drive gear 43, while also providing axial and radial positioning for the gear.

[0071] By adopting the above technical solutions, transmission resistance is reduced and driving efficiency is improved; wear on drive gear 43 and fixed seat 1 is reduced, extending equipment life; gear transmission accuracy is guaranteed, and jamming is avoided.

[0072] In some embodiments, the clamping block 3 described above can be as follows: Figures 1 to 4 , Figure 6 and Figure 7 The structure shown is described in the following document. Figures 1 to 4 , Figure 6 and Figure 7 The two clamping blocks 3 have grooves 31 on opposite sides for inserting the bar stock 8.

[0073] When clamping the bar stock 8, the bar stock 8 is embedded in the groove 31 on the opposite side of the clamping block 3. The groove 31 fits the outer contour of the bar stock 8 to achieve circumferential positioning. The V-shaped, U-shaped or arc-shaped groove 31 can be designed according to the shape of the bar stock 8.

[0074] By adopting the above technical solution, the clamping stability is enhanced, and the processing error caused by the deviation of the bar stock 8 is avoided; the surface of the bar stock 8 is protected, and clamping damage is prevented.

[0075] The technical solution adopted in this application also provides an electric upsetting machine, including the clamps for the electric upsetting machine proposed in any of the foregoing claims.

[0076] When the electric upsetting machine 7 is working, the clamps hold the bar stock 8 through the drive mechanism 4, and work with the upsetting die to complete the heating and upsetting processes. After the clamping block 3 wears, the adjustment mechanism 6 compensates for the distance, ensuring the stability of the central axis of the bar stock 8 during processing. This improves the processing accuracy and product consistency of the electric upsetting machine 7; reduces equipment downtime and maintenance time caused by the wear of the clamping block 3, and improves production efficiency; and adapts to different specifications of bar stock 8, enhancing the equipment's versatility.

[0077] The remaining beneficial effects of the electric upsetting machine provided in this embodiment are the same as those of the aforementioned electric upsetting machine clamps, and will not be repeated here.

[0078] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A clamp for an electric upsetting machine (7), characterized in that, include: Two fixed seats (1) are arranged horizontally at intervals on the electric upsetting machine (7), and each fixed seat (1) is fixedly connected to the electric upsetting machine (7); Two sliders (2) are slidably connected to two fixed seats (1) in the horizontal direction respectively; the two sliders (2) are connected to a driving mechanism (4), which is used to drive the two sliders (2) to move towards each other or away from each other; each of the two sliders (2) is provided with a clamping block (3) on its opposite side, which is used to clamp the bar stock (8); and An adjustment mechanism (6) is provided on one of the sliders (2) for transmission connection with the corresponding slider (2); Wherein, after the clamping block (3) wears out, the distance between the slider (2) and the bar (8) is adjusted by the adjusting mechanism (6) so that the distance between each clamping block (3) and the bar (8) is equal.

2. The clamp for the electric upsetting machine (7) as described in claim 1, characterized in that, The drive mechanism (4) includes: The first rack (41) is fixedly mounted on one of the sliders (2); The second rack (42) is slidably connected to another slider (2) in the horizontal direction, and is drivenly connected to the adjusting mechanism (6); the adjusting mechanism (6) is used to adjust the relative position of the second rack (42) and the slider (2), thereby adjusting the distance between the slider (2) and the bar stock (8); and Two drive gears (43) are rotatably connected to the two fixed seats (1) respectively, and mesh with the first rack (41) and the second rack (42) respectively; the two drive gears (43) are connected to a synchronous drive member (5) to drive the two drive gears (43) to rotate synchronously in opposite directions so that the two sliders (2) move towards each other or away from each other.

3. The clamp for the electric upsetting machine (7) as described in claim 2, characterized in that, The synchronous drive component (5) includes: Two sprockets (51) are coaxially connected to the two drive gears (43), respectively; Cylinder (52), mounted on the electric upsetting machine (7); and Two traction chains (53) are respectively wound around the two sprockets (51), and the winding directions of the two traction chains (53) are opposite; one end of each of the two traction chains (53) is fixedly connected to the power output end of the cylinder (52), and the other end is connected to the first reset component. The power output end of the cylinder (52) is adapted to drive the sprocket (51) to rotate via the traction chain (53), and the first reset member is used to drive the sprocket (51) to rotate in the opposite direction via the traction chain (53).

4. The clamp for the electric upsetting machine (7) as described in claim 3, characterized in that, The first reset component consists of two tension springs (54), both located between the traction chain (53) and the electric upsetting machine (7), and both ends of each tension spring (54) are fixedly connected to the traction chain (53) and the electric upsetting machine (7), respectively.

5. The clamp for the electric upsetting machine (7) as described in claim 2, characterized in that, The adjustment mechanism (6) includes: The screw (61) is slidably inserted into the corresponding slider (2), and one end of it is fixedly connected to the second rack (42); An adjusting nut (62) is disposed on the side of the corresponding slider (2) facing away from the other slider (2), and is threadedly connected to the other end of the screw (61); and The second reset component is disposed between the second rack (42) and the corresponding slider (2); When the adjusting nut (62) is tightened, it is adapted to move the corresponding slider (2) toward the other slider (2); when the adjusting nut (62) is loosened, the second reset member is adapted to move the corresponding slider (2) away from the other slider (2).

6. The clamp for the electric upsetting machine (7) as described in claim 5, characterized in that, The adjusting nut (62) is threaded with a fixing bolt (621), the end of which is adapted to abut against the screw (61) to fix the position of the adjusting nut (62).

7. The clamp for the electric upsetting machine (7) as described in claim 5, characterized in that, The second reset component consists of two compression springs (63), which are arranged side by side between the second rack (42) and the corresponding slider (2), and the two ends of each compression spring (63) are fixedly connected to the second rack (42) and the corresponding slider (2) respectively.

8. The clamp for the electric upsetting machine (7) as described in claim 2, characterized in that, A rotating bearing (431) is coaxially rotatably connected to the drive gear (43), and the rotating bearing (431) is fixedly connected to the fixed seat (1).

9. The clamp for the electric upsetting machine (7) as described in claim 1, characterized in that, The two clamping blocks (3) have grooves (31) on opposite sides for the bar stock (8) to be inserted.

10. An electric upsetting machine (7), characterized in that, Clamps for an electric upsetting machine (7) including any one of claims 1-9.

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