Winding chuck and clamping equipment

Abstract

The utility model discloses a winding chuck and clamping equipment. The winding chuck comprises a base, a pushing assembly, a jacking head assembly and a limiting piece. The base is provided with a channel penetrating through the two opposite ends of the base and a sliding way in the axial direction perpendicular to the channel, and the sliding way is communicated with the channel and penetrates through the side wall of the base. The propelling assembly is assembled in the channel and is in sliding connection with the base; the ejector head assembly is assembled in the slide way, slidably connected with the base and contacted with the propelling assembly, and the propelling assembly is used for pushing the ejector head assembly to slide and extend out of the slide way; the limiting piece is connected with the base and blocks the end, close to the ejector head assembly, of the channel. The pushing assembly does not need to be broken due to the fact that the pushing force of the driving piece is too large. The pushing assembly and the top head assembly are in direct contact pushing and are convenient to replace and maintain. The limiting piece at the bottom of the base can limit further movement of the propelling assembly, and therefore the situation that the propelling assembly breaks away from the channel, and the clamping function of the winding chuck fails is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of clamping equipment, and in particular to a winding clamp and clamping device. Background Technology

[0002] Most existing winding chucks use airbag type chucks, which inject compressed air into the chuck to inflate the airbag. This structure has several defects and shortcomings: (1) The airbag will burst when the air pressure is too high when the airbag is filled with gas; (2) Damage to the clamps inside the airbag will cause uneven force around the airbag after it inflates; (3) Burrs inside the drum will puncture the airbag; (4) There is no effective limit, and the airbag often inflates and gets out of control. Utility Model Content

[0003] One objective of this invention is to provide a winding clamp and a gripping device.

[0004] To achieve the above objectives, the present invention provides a solution as follows: a winding chuck includes a base, a pushing assembly, a top assembly, and a limiting member. The base has a channel extending through its opposite ends and a slide rail extending axially along the vertical channel. The slide rail communicates with the channel and extends through the side wall of the base. The pushing assembly is mounted in the channel and slidably connected to the base. The top assembly is mounted in the slide rail and slidably connected to the base. The top assembly contacts the pushing assembly, and the pushing assembly pushes the top assembly to slide and extend out of the slide rail. The limiting member is connected to the base and blocks the end of the channel near the top assembly.

[0005] Optionally, the propulsion assembly is provided with a first inclined wall, and the top assembly is provided with a second inclined wall. The first and second inclined walls are in contact, and the width of the first inclined wall gradually decreases in the direction from the propulsion assembly to the limiting member, and the width of the second inclined wall gradually decreases.

[0006] Optionally, the channel includes a first channel and a second channel that are interconnected, the slide is connected to the first channel, the diameter of the second channel is larger than the diameter of the first channel, and the limiting member blocks the end of the first channel away from the second channel; the propulsion assembly includes a pusher, part of which is inserted in the first channel and contacts the top assembly, and part of which is inserted in the second channel. The pusher is slidably connected to the peripheral wall of the first channel and the peripheral wall of the second channel respectively, and a compression cavity is formed between the pusher and the second channel.

[0007] Optionally, the propulsion assembly includes a seal, which is assembled in the first stage and connected to the pusher and the base, respectively.

[0008] Optionally, the seal includes a first part and a second part. The first part is assembled in the first channel, connected to the pusher, and in contact with the peripheral wall of the first channel. A limiting groove is formed in the peripheral wall of the first channel, and the second part is assembled in the limiting groove and in contact with the pusher.

[0009] Optionally, the pusher includes a pusher, a slide, and a connector. The connector passes through the pusher and the slide and is detachably connected. The pusher is assembled in the first pass and contacts the top head assembly. The slide is slidably connected to the peripheral walls of the first pass and the second pass, respectively. A compression cavity is formed between the slide and the second pass.

[0010] Optionally, the top assembly includes a top block, a clamping block, and a fixing member. The fixing member passes through the clamping block and the top block and is detachably connected. The top block and the clamping block are slidably connected to the slide rail, and the top block contacts the propulsion assembly.

[0011] Optionally, there are multiple slides, which are evenly spaced along the radial direction of the channel, and multiple mandrel assemblies, which are respectively disposed in multiple slides.

[0012] Optionally, the limiting member includes a main body and an overlapping part. The overlapping part is disposed on the peripheral side wall of the main body. The base has an assembly groove around the channel. The overlapping part is assembled in the assembly groove. The main body is inserted in the channel. The side of the main body facing the propulsion component has a clearance groove, which is directly opposite the propulsion component.

[0013] The present invention also includes a clamping device, which includes a driving member and a winding chuck as described above. The driving member is connected to a propulsion assembly and is used to drive the propulsion assembly of the winding chuck to move.

[0014] The beneficial effects of this utility model are as follows: the base, propulsion assembly, top assembly, and limiting component are all independent accessories. The base serves as the overall frame of the product. The propulsion assembly receives the pushing action of the drive component. Since the propulsion assembly is not an airbag structure, there is no need to worry about it bursting due to excessive driving force from the drive component, nor is there any concern about burrs puncturing the airbag. The propulsion assembly and top assembly directly contact each other for propulsion, resulting in more even force distribution. They are independent of each other, more durable, and easier to replace and maintain. The limiting component located at the bottom of the base restricts further movement of the propulsion assembly, thereby preventing it from disengaging from the channel and causing the winding chuck to lose its gripping function. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the winding clamp provided in this embodiment of the utility model;

[0017] Figure 2This is a cross-sectional schematic diagram of the winding clamp provided in the embodiment of this utility model in the II-II direction;

[0018] Figure 3 This is a cross-sectional schematic diagram of the winding clamp provided in the embodiment of this utility model in the III-III direction.

[0019] Reference numerals: Base 10, Channel 11, Slide 12, First Track 13, Second Track 14, Compression Chamber 15, Assembly Slot 16, Propulsion Assembly 20, First Inclined Wall 201, Push Head 21, Push Part 211, Slide Part 213, Connector 215, Seal 22, First Component 221, Second Component 223, Top Assembly 30, Second Inclined Wall 301, Top Block 31, Clamping Block 32, Fixing Component 33, Limiting Component 40, Main Body 41, Overlapping Part 42, Clearance Slot 43. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the winding clamp provided in this embodiment of the utility model. Figure 2 This is a cross-sectional schematic diagram of the winding clamp provided in the embodiment of this utility model in the II-II direction.

[0022] This utility model protects a clamping device, a driving component, and a winding chuck. The driving component is connected to the propulsion assembly 20 and is used to drive the winding chuck to move. The driving component can be high-pressure air driving the winding chuck to move, hydraulic oil driving the winding chuck to move, or a mechanical push rod driving the winding chuck to move. After the winding chuck moves, it deforms to clamp the part to be clamped.

[0023] The winding chuck includes a base 10, a push assembly 20, a top assembly 30, and a limiting member 40. The base 10 has a channel 11 extending through its opposite ends and a slide rail 12 extending axially along the channel 11. The slide rail 12 communicates with the channel 11 and extends through the side wall of the base 10. The axis of the slide rail 12 can be perpendicular or approximately perpendicular to the axis of the channel 11. The push assembly 20 is mounted in the channel 11 and slidably connected to the base 10. Under the action of a driving member, the push assembly 20 moves along the slide rail 12. The top assembly 30 is mounted in the slide rail 12 and slidably connected to the base 10. The top assembly 30 contacts the push assembly 20, and the push assembly 20 pushes the top assembly 30 to slide and extend out of the slide rail 12, thereby deforming and clamping the part. The limiting member 40 is connected to the base 10 and blocks the channel 11 near one end of the top assembly 30. When the push assembly 20 slides and moves to contact the limiting member 40, the limiting member 40 will prevent the push assembly 20 from moving further, thereby preventing the push assembly 20 from detaching from the base and sliding out of the channel 11.

[0024] To facilitate understanding by those skilled in the art, the operating principle of this embodiment will be explained with specific implementation steps, but this does not constitute any limitation on the solution of this utility model.

[0025] 1. Insert the base 10 into the part to be clamped; 2. Align the drive component with the push assembly 20 and drive the push assembly 20 to move along the channel 11; 3. During the movement, the push assembly 20 will further push the top assembly 30 to move along the slide 12 and at least partially extend out of the slide 12. The top assembly 30 abuts against the inner wall of the part to be clamped, thereby connecting with the part to be clamped; 4. After the push assembly 20 moves further, it will abut against the limiting component 40 to prevent the push assembly 20 from moving further, so as to prevent the push assembly 20 from sliding out of the channel 11.

[0026] In this embodiment, the base 10, the propulsion assembly 20, the top assembly 30, and the limiting member 40 are all independent components. The base 10 serves as the overall frame of the product. The propulsion assembly 20 receives the pushing action of the drive component. The propulsion assembly 20 is not an airbag structure; therefore, there is no need to worry about the propulsion assembly 20 bursting due to excessive pushing force from the drive component, nor is there any concern about the airbag being punctured by burrs. The propulsion assembly 20 and the top assembly 30 are in direct contact during propulsion, resulting in more even force distribution. They are independent of each other, more durable, and easier to replace and maintain. The limiting member 40 located at the bottom of the base 10 can restrict further movement of the propulsion assembly 20, thereby preventing the propulsion assembly 20 from disengaging from the channel 11 and causing the winding chuck's gripping function to fail.

[0027] The propulsion assembly 20 is provided with a first inclined wall 201, and the top assembly 30 is provided with a second inclined wall 301. The first inclined wall 201 and the second inclined wall 301 are in contact. From the propulsion assembly 20 to the limiting member 40, the width of the first inclined wall 201 gradually decreases, that is, the first inclined wall 201 gradually tilts towards the axis of the channel 11, and the width of the second inclined wall 301 gradually decreases, that is, the second inclined wall 301 gradually tilts towards the axis of the channel 11. The first inclined wall 201 and the second inclined wall 301 cooperate with each other. The first inclined wall 201 provides a thrust perpendicular to the second inclined wall 301. This thrust can be decomposed into a thrust along the axial direction of the slide rail 12, thereby driving the top assembly 30 to move along the axial direction of the slide rail 12.

[0028] In this embodiment, the first inclined wall 201 and the second inclined wall 301 are in close contact with each other to transmit force, are positioned relative to each other, have high concentricity, and the force transmission is more stable. In addition, the first inclined wall 201 and the second inclined wall 301 are in an inclined state, which has a guiding function to ensure that the propulsion component 20 and the top component 30 move in a directional manner along a preset trajectory.

[0029] Specifically, the channel 11 includes a first channel 13 and a second channel 14 that are interconnected. The slide 12 is connected to the first channel 13. The diameter of the second channel 14 is greater than the diameter of the first channel 13. That is, in the direction perpendicular to the axis of the channel 11, the width of the second channel 14 is greater than the width of the first channel 13. The second channel 14 and the first channel 13 form a structure similar to a countersunk hole. The limiting member 40 blocks the end of the first channel 13 away from the second channel 14. The propulsion assembly 20 is inserted from the second channel 14.

[0030] The propulsion assembly 20 includes a pusher head 21. Part of the pusher head 21 is inserted into the first channel 13 and contacts the top assembly 30. The portion of the pusher head 21 in contact with the top assembly 30 may form a first inclined wall 201. Part of the pusher head 21 is inserted into the second channel 14. The pusher head 21 is slidably connected to the peripheral walls of the first channel 13 and the second channel 14, respectively. That is, the pusher head 21 contacts the peripheral walls of the first channel 13 and the second channel 14, respectively. A compression chamber 15 is formed between the pusher head 21 and the second channel 14. When the pusher head 21 moves from the second channel 14 to the first channel 13, the air in the compression chamber 15 is gradually compressed, and the air pressure in the compression chamber 15 gradually increases, thereby providing a reverse pushing force to the pusher head 21, which facilitates the pusher head 21 returning to its original state after clamping the part.

[0031] The propulsion assembly 20 includes a seal 22, which is assembled in the first channel 13 and connected to both the pusher head 21 and the base 10. The seal 22 fills the gap between the pusher head 21 and the base 10 in the first channel 13, improving the sealing between them and ensuring the compression efficiency of the compression chamber 15 and the strength of the reverse thrust. The seal 22 can be made of silicone, foam, sponge, etc.

[0032] Specifically, the sealing element 22 includes a first element 221 and a second element 223. The first element 221 is assembled in the first channel 13, connected to the pusher head 21, and in contact with the peripheral wall of the first channel 13. The first element 221 fills the gap between the pusher head 21 and the peripheral wall of the first channel 13. A limiting groove is formed in the peripheral wall of the first channel 13. The second element 223 is assembled in the limiting groove and in contact with the pusher head 21. The second element 223 extends at least partially out of the limiting groove, which restricts the axial movement of the second element 223 along the channel 11. The second element 223 fills the gap between the base 10 and the peripheral wall of the pusher head 21. The first element 221 can be silicone, foam, sponge, etc. The second element 223 can also be silicone, foam, sponge, etc. The first element 221 and the second element 223 cooperate with each other to seal the gap between the pusher head 21 and the base 10 in the first channel 13.

[0033] The pusher 21 includes a pusher 211, a slide 213, and a connector 215. The connector 215 passes through the pusher 211 and the slide 213 and is detachably connected. The pusher 211 is assembled in the first channel 13 and contacts the top assembly 30. The portion of the pusher 211 that contacts the top assembly 30 can form a first inclined wall 201. The slide 213 is slidably connected to the peripheral walls of the first channel 13 and the second channel 14, respectively. A compression cavity 15 is formed between the slide 213 and the second channel 14. During use, the pusher 211 will come into contact with the top assembly 30, which may cause friction damage. In this embodiment, the pusher 211 and the slide 213 are detachably connected together by the connector 215. When the pusher 211 is worn and can no longer contact the top assembly 30, the connector 215 can be removed and the pusher 211 replaced to ensure that the new pusher 211 makes full contact with the top assembly 30.

[0034] Please see Figures 1 to 3 As shown, Figure 3 This is a cross-sectional schematic diagram of the winding clamp provided in the embodiment of this utility model in the III-III direction.

[0035] The top assembly 30 includes a top block 31, a clamping block 32, and a fixing member 33. The fixing member 33 passes through the clamping block 32 and is detachably connected to the top block 31. The top block 31 and the clamping block 32 are slidably connected to the slide rail 12. The top block 31 contacts the propulsion assembly 20 and may be provided with a second inclined wall 301. The clamping block 32 is used to hold the part to be clamped. During the engagement between the top block 31 and the propulsion assembly 20, wear may occur, preventing perfect contact. Therefore, simply removing the fixing member 33 allows the top block 31 to be replaced to ensure perfect contact between the top block 31 and the propulsion assembly 20. Similarly, during the engagement between the clamping block 32 and the part to be clamped, wear may occur, preventing perfect contact. Therefore, simply removing the fixing member 33 allows the clamping block 32 to be replaced to ensure perfect contact between the clamping block 32 and the part to be clamped, thereby improving the gripping strength.

[0036] There are multiple slides 12, which are evenly spaced along the radial direction of the channel 11. There are also multiple mandrel assemblies 30, which are respectively disposed in the multiple slides 12. During the movement of the push assembly 20, the multiple mandrel assemblies 30 will extend and simultaneously contact the workpiece to be clamped, thereby increasing the contact area with the workpiece and thus improving the connection strength between them.

[0037] The limiting member 40 includes a main body 41 and an overlapping portion 42. The overlapping portion 42 is disposed on the peripheral sidewall of the main body 41. The base 10 has an assembly groove 16 around the channel 11. The overlapping portion 42 is assembled in the assembly groove 16, which can accommodate the overlapping portion 42, thereby preventing the overlapping portion 42 from protruding from the base 10. In addition, the assembly groove 16 can also limit the limiting member 40, making it convenient for the limiting member 40 to be assembled to a predetermined position. The overlapping portion 42 and the base 10 can be connected by screws, adhesive, or welding. The main body 41 is inserted into the channel 11. A clearance groove 43 is formed on the side of the main body 41 facing the propulsion assembly 20. The clearance groove 43 is directly opposite the propulsion assembly 20. The portion of the main body 41 located in the clearance groove 43 is thinner than the rest of the main body 41 to allow the propulsion assembly 20 to have a sufficiently large stroke.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0039] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0040] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A winding clamp, characterized in that, The winding clamp also includes: The base has a channel extending through its opposite ends and a slide rail extending in an axial direction perpendicular to the channel. The slide rail communicates with the channel and extends through the side wall of the base. A propulsion component is assembled in the channel and slidably connected to the base; A top assembly, slidably connected to the base and assembled in the slide rail, the top assembly contacts the propulsion assembly, the propulsion assembly being used to push the top assembly to slide and extend out of the slide rail; and A limiting member is connected to the base and blocks one end of the channel near the top assembly.

2. The winding clamp according to claim 1, characterized in that, The propulsion assembly is provided with a first inclined wall, and the top assembly is provided with a second inclined wall. The first inclined wall and the second inclined wall are in contact. In the direction from the propulsion assembly to the limiting member, the width of the first inclined wall gradually decreases, and the width of the second inclined wall gradually decreases.

3. The winding clamp according to claim 1, characterized in that, The channel includes a first channel and a second channel that are interconnected. The slide is connected to the first channel. The diameter of the second channel is larger than the diameter of the first channel. The limiting member blocks the end of the first channel that is away from the second channel. The propulsion assembly includes a pusher head, part of which is inserted into the first channel and contacts the top head assembly, and part of which is inserted into the second channel. The pusher head is slidably connected to the peripheral walls of the first channel and the second channel, respectively, and a compression cavity is formed between the pusher head and the second channel.

4. The winding clamp according to claim 3, characterized in that, The propulsion assembly includes a seal that is assembled in the first channel and connected to both the pusher and the base.

5. The winding clamp according to claim 4, characterized in that, The sealing element includes a first part and a second part. The first part is assembled in the first channel, connected to the pusher, and in contact with the peripheral wall of the first channel. A limiting groove is formed in the peripheral wall of the first channel, and the second part is assembled in the limiting groove and in contact with the pusher.

6. The winding clamp according to claim 3, characterized in that, The pusher head includes a pusher, a slide, and a connector. The connector passes through the pusher and the slide and is detachably connected. The pusher is assembled in the first channel and contacts the top head assembly. The slide is slidably connected to the peripheral walls of the first channel and the second channel, respectively. A compression cavity is formed between the slide and the second channel.

7. The winding clamp according to any one of claims 1-6, characterized in that, The top assembly includes a top block, a clamping block, and a fixing member. The fixing member passes through the clamping block and the top block and is detachably connected. The top block and the clamping block are slidably connected to the slide rail, and the top block is in contact with the propulsion assembly.

8. The winding clamp according to any one of claims 1-6, characterized in that, The number of slides is multiple, and the multiple slides are evenly spaced along the radial direction of the channel. The number of top head assemblies is multiple, and the multiple top head assemblies are respectively disposed in the multiple slides.

9. The winding clamp according to any one of claims 1-6, characterized in that, The limiting member includes a main body and an overlapping part. The overlapping part is disposed on the peripheral side wall of the main body. The base has an assembly groove around the channel. The overlapping part is assembled in the assembly groove. The main body is inserted into the channel. The main body has a clearance groove on the side facing the propulsion component. The clearance groove is directly opposite the propulsion component.

10. A gripping device, characterized in that, The clamping device includes: a drive member and a winding chuck as described in any one of claims 1 to 9, the drive member being connected to the propulsion assembly, the drive member being used to drive the propulsion assembly of the winding chuck to move.

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