A mold clamp

Abstract

The utility model discloses a mould clamp, through setting up multiple locking teeth of along the axial interval arrangement on the locking lever, using the slider is set on the locking lever, and sets up locking assembly on the slider, wherein locking assembly and locking tooth detachable connection, when using, the upper die of welding mould is installed in the slider, and the lower die of welding mould is set up corresponding upper die, through operating the connection or separation of locking assembly and locking tooth, makes the slider switch between the state of locking and unlocking, thereby realizes the opening and closing of welding mould. Since the mould clamp does not rely on the friction force between the slider and the locking lever, the slider and the locking lever can have a larger gap and a better lubrication state, thereby making the opening and closing process of the welding mould more smooth.

Description

Technical Field

[0001] This utility model relates to the field of exothermic welding, specifically to a mold clamp. Background Technology

[0002] In the construction of lightning protection grounding, exothermic welding is an important welding process, and welding molds and mold clamps are essential tools in this process. A common welding mold consists of an upper mold and a lower mold. After the upper and lower molds are closed, the mold clamps hold them together.

[0003] During welding, metal residues or dust may adhere to the welding mold. In this case, the upper and lower molds need to be separated to clean the interior. A mold clamp is required to keep the upper and lower molds separated so the operator can clean the inside. In related technologies, the mold clamp mainly relies on the friction between the slider and the support frame to keep the upper and lower molds separated. Therefore, a small gap is required between the slider and the support frame. This leads to frequent jamming of the slider and support frame when the upper and lower molds slide against each other, affecting the operator's work. Utility Model Content

[0004] This utility model provides a mold clamp that improves upon the problem of mold clamp jamming when welding molds are opened and closed in the prior art, making the mold clamp smoother during the opening and closing of welding molds.

[0005] To achieve the above objectives, this utility model provides a mold clamp, comprising:

[0006] A locking lever, wherein the locking lever is provided with a plurality of locking teeth, the plurality of locking teeth being arranged at intervals along the extending direction of the locking lever;

[0007] A slider, which is sleeved on the locking rod and slidably connected to the locking rod, is used to connect with the welding mold;

[0008] A locking component is slidably connected to the slider and detachably connected to the locking teeth along the radial direction of the locking rod. In use, the upper mold of the welding mold is connected to the slider, and the lower mold is positioned corresponding to the upper mold along the extension direction of the locking rod. When the welding mold needs to be opened or closed, the locking component separates from the locking teeth, allowing the slider to slide freely along the locking rod to open and close the welding mold. When the upper and lower molds need to be relatively fixed, such as when preparing for welding and needing to close the welding mold or when cleaning the inside of the welding mold, the locking component connects to the locking teeth, preventing the slider from sliding relative to the locking rod, thus fixing the positions of the upper and lower molds. Because the mold clamp does not rely on the friction between the slider and the locking rod for operation, there can be a larger gap and better lubrication between the slider and the locking rod, making the opening and closing process of the welding mold smoother.

[0009] As an optional technical solution, the locking rod includes a lead screw, and the locking teeth are threads on the lead screw; the slider is sleeved on the lead screw and slidably connected to the lead screw; the locking assembly is detachably connected to the thread. The lead screw is a standard part and can be used directly without additional processing, which helps to reduce the manufacturing cost of the mold clamp.

[0010] As an optional technical solution, a support rod is also included, which is arranged parallel to the locking rod. The slider has a sliding hole through which the support rod passes, and the support rod is slidably connected to the slider via the sliding hole. The support rod can share the load of the welding mold on the locking rod, preventing the support rod from bending and deforming during long-term use.

[0011] As an optional technical solution, the locking rod further includes a base, and the lead screw is rotatably connected to the base. Rotation of the lead screw causes the locking element to move along the thread direction of the lead screw, thereby driving the slider and the upper die connected to the slider to move along the axial direction of the lead screw, thus finely adjusting the position of the upper die relative to the lower die, ensuring a tight fit between the upper die and the lower die when they are closed.

[0012] As an optional technical solution, the locking lever further includes an adjusting handle connected to the end of the lead screw opposite to the base. Turning the adjusting handle rotates the lead screw, causing the slider to move along the lead screw axis to fine-tune the position of the upper die relative to the lower die.

[0013] As an optional technical solution, the slider has a mounting groove on the side facing the base, and the locking assembly extends radially through the screw into the mounting groove;

[0014] The mold clamp also includes an adjusting flange, which is disposed between the slider and the base and threadedly connected to the lead screw. The adjusting flange is detachably connected to the mounting groove. A connecting groove is provided on the side of the adjusting flange facing the locking assembly, and the connecting groove is detachably connected to the locking assembly. When the welding mold is opened, the locking assembly separates from the connecting groove, thereby allowing the adjusting flange to separate from the mounting groove, and thus allowing the slider to slide freely relative to the lead screw. When the welding mold is closed, the adjusting flange can limit the slider, preventing excessive sliding speed that could cause the upper and lower molds to collide and be damaged. After the adjusting flange is connected to the mounting groove and the locking assembly is connected to the connecting groove, the adjusting flange and the slider are connected. At this time, rotating the lead screw can finely adjust the position of the slider, causing the slider to move along the lead screw axis to adjust the clamping force between the upper and lower molds, thereby ensuring a tight fit between the upper and lower molds.

[0015] As an optional technical solution, the slider is provided with a locking screw hole, which extends radially from the outside of the slider to the inner wall of the sliding hole. A locking screw is inserted into the locking screw hole and is threadedly connected to the locking screw hole. After the upper mold and the lower mold are separated, the locking screw can be tightened to abut against the support rod, thereby fixing the slider and preventing the operator from accidentally touching the locking component, which would cause the slider and the upper mold to slide and fall under gravity.

[0016] As an optional technical solution, the slider is provided with a locking hole, which is radially opened along the locking rod. The locking assembly includes a locking pin and a spring. The locking pin passes through the locking hole, and the end of the locking hole is detachably connected to the locking tooth. The spring is connected to the locking pin and the slider, and the spring is used to facilitate the engagement of the locking pin with the locking tooth. Under the action of the spring, when no external force is applied, the end of the locking pin is inserted between two adjacent locking teeth and abuts against one of the locking teeth, thereby preventing the slider from sliding. When the slider needs to slide, the locking pin can be pulled out of the locking hole to unlock the slider. When the slider slides to a predetermined position, the locking pin is released, and under the action of the spring, the locking pin connects with the locking tooth at the current position, thereby fixing the slider.

[0017] As an optional technical solution, the locking pin has a wing at the end opposite to the slider, and the wing extends radially along the locking pin; the locking assembly also includes a support cylinder, which is coaxially arranged with the locking hole and connected to the side of the slider opposite to the locking rod, and the locking pin passes through the support cylinder; the wing abuts against the end face of the support cylinder opposite to the slider along the axial direction of the support cylinder, and the normal of the end face forms an acute angle with the axial direction of the support cylinder. When no external force is applied, the wing remains on the end face near the slider under the action of the spring. When it is necessary to change the welding mold from the closed state to the open state, the operator can hold the slider with one hand and use one finger to flick the wing, causing the locking pin to rotate relative to the support cylinder. At this time, the wing slides relative to the end face and slides towards the end of the end face away from the slider, causing the locking pin to slide away from the locking rod, thereby disengaging from the locking teeth and releasing the slider from locking, allowing it to slide freely relative to the locking rod. After the operator stops flicking the wing, under the action of the spring, the locking pin slides towards the locking rod and connects with the locking teeth. The wing slides and rotates against the end face, returning to the position before the operator flicked the wing. The operator can complete the above process with one hand, which improves the convenience of operating the mold clamp.

[0018] As an optional technical solution, the device further includes an upper clamp and a lower clamp. The upper clamp is detachably connected to the slider and is used to clamp the upper mold of the welding mold. The lower clamp is provided corresponding to the upper clamp and is used to clamp the lower mold of the welding mold. The mold clamp also includes a handle, which is connected to the slider and is positioned opposite to the upper clamp. When moving the slider, the handle can be held for operation, which improves the ease of operation of the mold clamp.

[0019] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0020] This utility model discloses a mold clamp that uses a locking rod with multiple locking teeth arranged axially at intervals. A slider is fitted onto the locking rod, and a locking component is provided on the slider. The locking component and the locking teeth are detachably connected. In use, the upper mold of the welding mold is installed on the slider, and the lower mold of the welding mold is positioned corresponding to the upper mold. By manipulating the connection or disengagement of the locking component and the locking teeth, the slider switches between locked and unlocked states, thereby realizing the opening and closing of the welding mold. Since the mold clamp does not rely on the friction between the slider and the locking rod to work, there can be a larger gap and better lubrication between the slider and the locking rod, making the opening and closing process of the welding mold smoother. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the mold clamp in this utility model;

[0023] Figure 2 for Figure 1 A cross-sectional view of the middle slider.

[0024] Explanation of reference numerals in the attached figures

[0025] Locking rod-1; Lead screw-11; Base-12; Adjusting handle-13; Adjusting flange-14; Connecting groove-141;

[0026] Slider-2; Locking screw-21; Upper clamp-22; Handle-23; Mounting slot-24;

[0027] Locking assembly-3; Locking pin-31; Wing-311; Spring-32; Support cylinder-33; End face-331;

[0028] Support rod-4; lower clamp-5. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this invention, the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a direct connection, an indirect connection via an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0034] Example 1

[0035] This embodiment provides a mold clamp, including:

[0036] Locking rod 1, with multiple locking teeth arranged at intervals along the extending direction of locking rod 1;

[0037] Slider 2 is sleeved on locking rod 1 and slidably connected to locking rod 1. Slider 2 is used to connect with welding mold.

[0038] Locking component 3 is slidably connected to slider 2 and detachably connected to locking teeth along the radial direction of locking rod 1. In use, the upper mold of the welding mold is connected to slider 2, and the lower mold is positioned corresponding to the upper mold along the extension direction of locking rod 1. When the welding mold needs to be opened or closed, locking component 3 separates from locking teeth, allowing slider 2 to slide freely along locking rod 1 to open and close the welding mold. When the upper and lower molds need to be relatively fixed, such as when welding is required and the welding mold needs to be closed or when cleaning the inside of the welding mold, locking component 3 connects to locking teeth, preventing slider 2 from sliding relative to locking rod 1, thus fixing the positions of the upper and lower molds. Because the mold clamp does not rely on the friction between slider 2 and locking rod 1 for operation, there can be a larger gap and better lubrication between slider 2 and locking rod 1, making the opening and closing process of the welding mold smoother.

[0039] Example 2

[0040] Based on Embodiment 1, the locking rod 1 includes a lead screw 11, with locking teeth being the threads on the lead screw 11; a slider 2 is sleeved on the lead screw 11 and slidably connected to the lead screw 11; and the locking assembly 3 is detachably connected to the thread. The lead screw 11 is a standard part and can be used directly without additional processing, which helps to reduce the manufacturing cost of the mold clamp.

[0041] As an optional implementation, a support rod 4 is also included, which is arranged parallel to the locking rod 1. The slider 2 has a sliding hole, through which the support rod 4 passes, and the support rod 4 is slidably connected to the slider 2. The support rod 4 can share the load of the welding mold on the locking rod 1, preventing the support rod 4 from bending and deforming during long-term use.

[0042] As an optional implementation, the locking rod 1 also includes a base 12, and the lead screw 11 is rotatably connected to the base 12. Rotation of the lead screw 11 can cause the locking element to move along the thread direction of the lead screw 11, thereby driving the slider 2 and the upper mold connected to the slider 2 to move axially along the lead screw 11, thereby finely adjusting the position of the upper mold relative to the lower mold, so that the upper mold and the lower mold are tightly engaged when they are closed.

[0043] As an optional implementation, the locking lever 1 also includes an adjusting handle 13, which is connected to the end of the lead screw 11 opposite to the base 12. By turning the adjusting handle 13, the lead screw 11 can be rotated, thereby causing the slider 2 to move axially along the lead screw 11 to fine-tune the position of the upper die relative to the lower die.

[0044] As an optional implementation, the slider 2 has a mounting groove 24 on the side facing the base 12, and the locking assembly 3 extends radially through the lead screw 11 into the mounting groove 24. The mold clamp also includes an adjusting flange 14, which is disposed between the slider 2 and the base 12 and threadedly connected to the lead screw 11. The adjusting flange 14 is detachably connected to the mounting groove 24. The adjusting flange 14 has a connecting groove 141 on the side facing the locking assembly 3, and the connecting groove 141 is detachably connected to the locking assembly 3. When the welding mold is opened, the locking assembly 3 separates from the connecting groove 141, thereby allowing the adjusting flange 14 to separate from the mounting groove 24, and thus allowing the slider 2 to slide freely relative to the lead screw 11. When the welding mold is closed, the adjusting flange 14 can limit the slider 2, preventing the slider 2 from sliding too fast and causing damage due to impact between the upper and lower molds. After the adjusting flange 14 is connected to the mounting groove 24 and the locking assembly 3 is connected to the connecting groove 141, the adjusting flange 14 and the slider 2 are connected. At this time, the screw 11 can be rotated to finely adjust the position of the slider 2, so that the slider 2 can move along the axial direction of the screw 11 to adjust the clamping force between the upper and lower dies, thereby making the upper and lower dies tightly joined.

[0045] As an optional implementation, the slider 2 is provided with a locking screw hole, which extends radially from the outside of the slider 2 to the inner wall of the sliding hole. A locking screw 21 is inserted into the locking screw hole and is threadedly connected to the locking screw hole. After the upper mold and the lower mold are separated, the locking screw 21 can be tightened to make the locking screw 21 abut against the support rod 4, thereby fixing the slider 2 and preventing the operator from accidentally touching the locking component 3, which would cause the slider 2 and the upper mold to slide and fall under the action of gravity.

[0046] As an optional implementation, the slider 2 is provided with a locking hole, which is radially opened along the locking rod 1. The locking assembly 3 includes a locking pin 31 and a spring 32. The locking pin 31 passes through the locking hole, and the end of the locking hole is detachably connected to a locking tooth. The spring 32 is connected to the locking pin 31 and the slider 2, and the spring 32 is used to promote the engagement of the locking pin 31 with the locking tooth. Under the action of the spring 32, when there is no external force, the end of the locking pin 31 is inserted between two adjacent locking teeth and abuts against one of the locking teeth, thereby preventing the slider 2 from sliding. When the slider 2 needs to slide, the locking pin 31 can be pulled out of the locking hole to unlock the slider 2. When the slider 2 slides to a predetermined position, the locking pin 31 is released. Under the action of the spring 32, the locking pin 31 connects with the locking tooth at the current position, thereby fixing the slider 2. Preferably, a pull ring can be provided at the end of the locking pin 31 facing away from the locking rod 1 so that the operator can pull out the locking pin 31.

[0047] As an optional implementation, the locking pin 31 has a wing 311 at the end away from the slider 2, and the wing 311 extends radially along the locking pin 31; the locking assembly 3 also includes a support cylinder 33, which is coaxially arranged with the locking hole and connected to the side of the slider 2 away from the locking rod 1, and the locking pin 31 passes through the support cylinder 33; the wing 311 abuts against the end face 331 of the support cylinder 33 away from the slider 2 along the axial direction of the support cylinder 33, and the normal of the end face 331 forms an acute angle with the axial direction of the support cylinder 33. When no external force is applied, the wing 311 remains on the side of the end face 331 near the slider 2 under the action of the spring 32. When it is necessary to change the welding mold from the closed state to the open state, the operator can hold the slider 2 with one hand and use one finger to flick the wing 311, causing the locking pin 31 to rotate relative to the support cylinder 33. At this time, the wing 311 slides relative to the end face 331 and slides towards the end of the end face 331 away from the slider 2, causing the locking pin 31 to slide away from the locking rod 1, thereby disengaging from the locking teeth and releasing the slider 2 from the lock, allowing it to slide freely relative to the locking rod 1. After the operator stops flicking the wing 311, under the action of the spring 32, the locking pin 31 slides towards the locking rod 1 and connects with the locking teeth. The wing 311 slides and rotates against the end face 331, returning to the position before the operator flicked the wing 311. The operator can complete the above process with one hand, which helps to improve the convenience of mold clamp operation.

[0048] It should be noted that the distance from the side of the end face 331 of the support cylinder 33 near the locking rod 1 to the side away from the locking rod 1 should be greater than the tooth height of the locking tooth; in the case of the adjustment flange 14, this distance should be greater than the radial depth of the connecting groove 141 along the locking rod 1, so as to ensure that the locking pin 31 can disengage from the locking tooth or the connecting groove 141 when the wing 311 is rotated, so as to unlock the slider 2.

[0049] Preferably, the mold clamp further includes a handle 23, which is connected to the slider 2 and is disposed opposite to the upper clamp 22. When the wing is moved to move the slider 2, the handle 23 can be held for operation, which further improves the convenience of operating the mold clamp.

[0050] In other implementations, it may also be as follows: Figure 1 The diagram shows that the support cylinder 33 is not provided and the locking pin 31 is not provided with a wing 311 but with a pull ring. In this case, the operator needs to use both hands to operate the slider 2, which can prevent the operator from being injured by placing his hands in other positions with safety risks (such as between the upper and lower molds).

[0051] As an optional implementation, it also includes an upper clamp 22 and a lower clamp 5. The upper clamp 22 is detachably connected to the slider 2 and is used to clamp the upper mold of the welding mold. The lower clamp 5 is provided corresponding to the upper clamp 22 and is used to clamp the lower mold of the welding mold.

[0052] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mold clamp, characterized in that, include: A locking lever, wherein the locking lever is provided with a plurality of locking teeth, the plurality of locking teeth being arranged at intervals along the extending direction of the locking lever; A slider, which is sleeved on the locking rod and slidably connected to the locking rod, is used to connect with the welding mold; A locking assembly is slidably connected to the slider and detachably connected to the locking teeth along the radial direction of the locking rod.

2. A mold clamp according to claim 1, characterized in that, The locking rod includes a lead screw, and the locking teeth are threads on the lead screw; the slider is sleeved on the lead screw and slidably connected to the lead screw; the locking assembly is detachably connected to the thread.

3. A mold clamp according to claim 2, characterized in that, It also includes a support rod, which is arranged parallel to the locking rod; the slider is provided with a sliding hole, the support rod passes through the sliding hole, and the support rod is slidably connected to the slider through the sliding hole.

4. A mold clamp according to claim 2, characterized in that, The locking rod also includes a base, and the lead screw is rotatably connected to the base.

5. A mold clamp according to claim 4, characterized in that, The locking lever also includes an adjustment handle, which is connected to the end of the lead screw away from the base.

6. A mold clamp according to claim 4, characterized in that, The slider has a mounting groove along the side facing the base, and the locking assembly extends radially through the screw into the mounting groove; The mold clamp also includes an adjusting flange, which is disposed between the slider and the base and is threadedly connected to the lead screw; the adjusting flange is detachably connected to the mounting groove; the adjusting flange has a connecting groove on the side facing the locking assembly, and the connecting groove is detachably connected to the locking assembly.

7. A mold clamp according to claim 3, characterized in that, The slider is provided with a locking screw hole, which extends radially from the outside of the slider to the inner wall of the sliding hole. A locking screw is inserted into the locking screw hole and is threadedly connected to the locking screw hole.

8. A mold clamp according to claim 1, characterized in that, The slider is provided with a locking hole, which is opened radially along the locking rod; the locking assembly includes a locking pin and a spring, the locking pin passes through the locking hole, and the end of the locking hole is detachably connected to the locking tooth; the spring is connected to the locking pin and the slider, and the spring is used to promote the engagement of the locking pin and the locking tooth.

9. A mold clamp according to claim 8, characterized in that, The locking pin has a wing at the end opposite to the slider, and the wing extends radially along the locking pin; the locking assembly also includes a support cylinder, which is coaxially arranged with the locking hole and connected to the side of the slider opposite to the locking rod, and the locking pin passes through the support cylinder; the wing abuts against the end face of the support cylinder opposite to the slider along the axial direction of the support cylinder, and the normal of the end face forms an acute angle with the axial direction of the support cylinder.

10. A mold clamp according to claim 1, characterized in that, It also includes an upper clamp and a lower clamp. The upper clamp is detachably connected to the slider and is used to clamp the upper mold of the welding mold. The lower clamp is provided corresponding to the upper clamp and is used to clamp the lower mold of the welding mold. The mold clamp also includes a handle, which is connected to the slider and is provided opposite to the upper clamp.

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