Variable-pitch mechanical clamp

Abstract

The utility model provides a variable-pitch mechanical clamp which comprises a mounting plate, a base plate, a variable-pitch clamp component, a base plate, a base plate, a base plate and a base plate, and is characterized in that the mounting plate is provided with a reference clamp component and a variable-pitch clamp component; the reference clamp component comprises a first connecting plate fixed on the mounting plate, and a first clamp assembly is arranged on the first connecting plate; the variable-pitch clamp component comprises a second connecting plate, a second clamp assembly is arranged on the second connecting plate, the second connecting plate is arranged on the mounting plate in a sliding mode through a variable-pitch adjusting assembly, and the distance between the variable-pitch clamp component and the reference clamp component is adjusted through the variable-pitch adjusting assembly. By means of the mode, two products can be clamped at a time, the working efficiency is effectively improved, the positions of the two clamp assemblies are adjusted through the variable-pitch adjusting assembly, and the clamp is suitable for products at different feeding positions.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a mechanical clamp with a variable distance. Background Art

[0002] Cable reels are a type of reel used exclusively for wires and cables. During the production process, the reels need to be placed from the conveyor belt to the winding equipment, and also taken out of the winding equipment and placed on the conveyor belt. Since the incoming material position of the reels is uncertain, the placement of the reels on the conveyor belt is usually relatively free, and the spacing between two adjacent reels is often inconsistent, requiring a special variable distance mechanism for secondary processing, resulting in a waste of manpower and time, or only one reel can be transported at a time, resulting in a slow overall handling speed.

[0003] There is a wire reel such as Figure 1 As shown, the wire drum body 4 includes an axial hole 41 extending through the middle of the wire drum body 4, and a step is provided in the axial hole 41 for the clamp to grasp. During the processing, the wire drum is usually grasped and carried by a robot, one product is grasped at a time, the handling speed is low, and the overall production rhythm is slow. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a variable-distance mechanical clamp which has a simple structure and can effectively improve the grasping rate.

[0005] The main contents of the utility model include: a mounting plate, on which a reference fixture component and a variable pitch fixture component are arranged;

[0006] The reference fixture member comprises a first connecting plate fixed to the mounting plate, and a first fixture assembly is arranged on the first connecting plate;

[0007] The variable pitch clamp component includes a second connecting plate, on which a second clamp assembly is disposed. The second connecting plate is slidably disposed on the mounting plate via a variable pitch adjustment assembly, and the distance between the variable pitch clamp component and the reference clamp component is adjusted via the variable pitch adjustment assembly.

[0008] Preferably, the first clamp assembly comprises a connecting support plate, the connecting support plate is rotatably connected to the lower end surface of the first connecting plate through a rotating driving member, a mounting support plate is connected below the connecting support plate, and a pneumatic clamp is arranged on the lower end surface of the mounting support plate;

[0009] The second clamp assembly has the same structure as the first clamp assembly.

[0010] Preferably, the outer side wall of the finger of the pneumatic clamp is provided with a clamping portion protruding outward for clamping the product.

[0011] Preferably, the lower end of the mounting support plate is connected to an abutment plate via a lifting cylinder, and the abutment plate has an avoidance portion at a position corresponding to the pneumatic clamping jaw, and the pneumatic clamping jaw can move downward from the avoidance portion.

[0012] Preferably, a guide fitting is provided between the mounting support plate and the abutment plate, the guide fitting comprises a guide column provided on the upper end surface of the abutment plate, the mounting support plate is provided with a guide sleeve, and the guide column is correspondingly inserted into the guide sleeve.

[0013] Preferably, an elastic member is circumferentially sleeved on the guide column, one end of the elastic member abuts against the mounting support plate, and the other end abuts against the abutting plate.

[0014] Preferably, the rotary driving member includes a first rotary motor, a first driving gear and a slewing bearing, the first driving gear is arranged at the output end of the first rotary motor, the first driving gear and the slewing bearing are arranged in mutual meshing between the first connecting plate and the connecting support plate, the upper end of the inner ring of the slewing bearing is fixed to the lower end surface of the first connecting plate, the lower end of the outer ring of the slewing bearing is fixed to the upper end surface of the connecting support plate, and the outer ring can rotate relative to the inner ring.

[0015] Preferably, the variable distance adjustment assembly includes a transverse slide rail and a transverse driving member arranged on the mounting plate, the second connecting plate is slidably arranged on the transverse slide rail through a slider, and the transverse driving member drives the second connecting plate to slide along the transverse slide rail.

[0016] Preferably, the transverse driving member includes a second rotating motor arranged on one side of the second connecting plate, the output end of the second rotating motor is connected to a second driving gear, and a transverse rack is arranged on the corresponding side of the mounting plate, and the second driving gear is meshed with the transverse rack.

[0017] Preferably, a CCD camera is provided on one side of the mounting plate.

[0018] The beneficial effects of the utility model are: by using the variable distance adjustment component to adjust the distance between the first clamp component and the second clamp component, two groups of products with unfixed incoming material positions can be clamped at one time, effectively improving the grasping efficiency; by using the rotating drive member to drive the clamp to rotate, the products on the clamp are driven to rotate synchronously, so that products in different positions can be placed in the same direction, the overall adaptability of the clamp is enhanced, the compatibility is improved, the control range is wide and the control is precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a wire drum;

[0020] Figure 2This is a schematic diagram of the three-dimensional structure of a preferred embodiment;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of a first clamp assembly in a preferred embodiment;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of a variable pitch adjustment component of a preferred embodiment;

[0023] Reference numerals:

[0024] 1. Mounting plate; 2. Reference fixture component; 3. Variable pitch fixture component; 4. CCD camera;

[0025] 21. first connecting plate; 22. first clamp assembly; 221. connecting support plate; 222. first rotating motor; 223. first driving gear; 224. slewing bearing; 225. mounting support plate; 226. pneumatic clamp; 2261. clamping part; 227. abutting plate; 228. lifting cylinder; 229. guide column; 230. guide sleeve;

[0026] 31. second connecting plate; 32. second fixture assembly; 33. variable pitch adjustment assembly; 331. transverse slide rail; 332. second rotating motor; 333. second driving gear; 334. transverse rack;

[0027] 4. Reel body; 41. Axis hole. DETAILED DESCRIPTION

[0028] The technical solution protected by the utility model is described in detail below with reference to the accompanying drawings.

[0029] like Figure 2 As shown, a variable-distance mechanical clamp is used to clamp a wire drum product (such as Figure 1 As shown in FIG. 1 , it comprises a mounting plate 1, on which a reference clamp member 2 and a variable-distance clamp member 3 are arranged. The reference clamp member 2 and the variable-distance clamp member 3 can clamp products at the same time, or clamp products separately without interfering with each other, which effectively improves work efficiency, and the variable-distance clamp member 3 can be displaced relative to the reference clamp member 2, and the distance between the two clamp members can be adjusted according to the product placement position, and has strong adaptability.

[0030] like Figure 2-3As shown, the reference clamp member 2 includes a first connecting plate 21 fixed to the lower end surface of the mounting plate 1, and a first clamp assembly 22 is arranged on the first connecting plate 21 for clamping the product. The variable distance clamp member 3 includes a second connecting plate 31 slidably arranged on the lower end surface of the mounting plate 1, and a second clamp assembly 32 is arranged on the second connecting plate 31 for clamping the product. A variable distance adjustment assembly 33 is connected between the second connecting plate 31 and the mounting plate 1, and the distance between the variable distance clamp member 3 and the reference clamp member 2 is controlled by the variable distance adjustment assembly 33.

[0031] like Figure 2-3 As shown, the first clamp assembly 22 includes a connecting support plate 221 rotatably connected to the lower end surface of the first connecting plate 21, and the connecting support plate 221 is driven to rotate by a rotating driving member. The lower end of the connecting support plate 221 is connected to a mounting support plate 225 through a pillar, and the lower end surface of the mounting support plate 225 is provided with a pneumatic clamp 226, and the pneumatic clamp 226 is used to clamp the product. In this embodiment, the fingers of the pneumatic clamp 226 face downward, and a protruding clamping portion 2261 is provided on the outer wall of the fingers, and the clamping portion 2261 can correspond to the step inside the clamping product. When the fingers of the pneumatic clamp 226 are in a closed state, they extend downward into the axial hole of the product, and the fingers open in the axial hole of the product, and the pneumatic clamp 226 is lifted upward, and its clamping portion 2261 is correspondingly clamped on the step in the axial hole of the product, and drives the product to move synchronously.

[0032] like Figure 2-3 As shown, the rotary drive member includes a first rotary motor 222, a first driving gear 223 meshing with each other, and a slewing bearing 224. The first rotary motor 222 is correspondingly arranged on the first connecting plate 21, and the output end of the first rotary motor 222 is connected to the first driving gear 223 through a rotating shaft, and the first driving gear 223 and the slewing bearing 224 are meshed with each other and arranged between the first connecting plate 21 and the mounting support plate 225. The upper end of the inner ring of the slewing bearing 224 is fixedly connected to the second connecting plate 31, and the lower end of the inner ring thereof is rotatably connected to the mounting support plate 225. The outer ring of the slewing bearing 224 can rotate relative to the inner ring and has a gear meshing with the first driving gear 223, and the lower end of the outer ring is fixedly connected to the mounting support plate 225. The first rotating motor 222 drives the first driving gear 223 to rotate, and the first driving gear 223 drives the outer ring of the slewing bearing 224 to rotate, that is, the mounting support plate 225 and the pneumatic clamp 226 are synchronously driven to rotate synchronously. The pneumatic clamp 226 can adjust the angle of the product when clamping and drive the product to rotate at a certain angle to ensure that the product is placed at a specified angle position, so that the direction of placement of all products is unified.

[0033] like Figure 2-3As shown, preferably, an abutment plate 227 is provided below the mounting support plate 225 through a lifting cylinder 228. The lifting cylinder 228 is provided on the mounting support plate 225, and its push rod is downwardly connected to the abutment plate 227, and the abutment plate 227 is lifted and lowered by the action of the lifting cylinder 228. The abutment plate 227 is used to abut against the upper end surface of the product, and the abutment plate 227 has an avoidance portion (not shown) at the position corresponding to the pneumatic clamp 226, so that the pneumatic clamp 226 can move downward from the avoidance portion and grab the product. The lifting cylinder is used to adjust the distance between the abutment plate and the pneumatic clamp to adapt to different models of products (the distance between the internal step of the shaft hole and the upper end surface of different models of products is different).

[0034] like Figure 2-3 As shown, a guide fitting is provided between the abutment plate 227 and the mounting support plate 225, and the guide fitting includes a guide column 229 provided on the upper end surface of the abutment plate 227, which cooperates with a guide sleeve 230 provided on the mounting support plate, and the guide column 229 is correspondingly inserted into the guide sleeve 230 to improve the stability of the abutment plate 227 during the lifting and lowering process.

[0035] like Figure 2-3 As shown, preferably, an elastic member (not shown) is circumferentially sleeved on the guide column 229 , one end of the elastic member abuts against the abutment plate 227 , and the other end abuts against the mounting support plate 225 , and the elastic member acts as a buffer during the lifting and lowering process of the abutment plate 227 .

[0036] like Figure 2-3 As shown, in this embodiment, the second clamp assembly 32 has the same structure as the first clamp assembly 22, which will not be described in detail. The second clamp assembly and the first clamp assembly can adjust the clamping position and direction respectively, and have strong adaptability. Preferably, in this embodiment, a moving avoidance hole is provided on the mounting plate to provide an avoidance space for the first rotating motor on the second clamp assembly when moving.

[0037] like Figure 2-4 As shown, the variable distance adjustment assembly 33 includes a transverse slide rail 331 and a transverse driving member. The transverse slide rail 331 is arranged on the mounting plate 1. The second connecting plate 31 is slidably arranged on the transverse slide rail 331 through a slider. The transverse driving member drives the second connecting plate 31 to slide along the transverse slide rail 331. Specifically, the transverse slide rail 331 is correspondingly arranged on the lower end surface of the mounting plate 1. One end of the transverse slide rail 331 is close to the first connecting plate 21, and the other end extends in a direction away from the first connecting plate 21. The transverse driving member drives the second connecting plate 31 to approach and move away from the first connecting plate 21 to adjust the distance between the first connecting plate 21 and the second connecting plate 31.

[0038] like Figure 2-4As shown, the transverse driving member includes a second rotary motor 332, a second driving gear 333 and a transverse rack 334. The second driving gear 333 is arranged at the output end of the second rotary motor 332. The second rotary motor 332 is arranged at one side of the second connecting plate 31. The transverse rack 334 is arranged at the corresponding side of the mounting plate 1. The second driving gear 333 and the transverse rack 334 are meshed with each other. The second rotary motor 332 drives the second driving gear 333 to rotate, and the second driving gear 333 reciprocates along the transverse rack 334, thereby driving the second connecting plate 31 to reciprocate along the transverse slide rail 331. The gear and rack cooperate with each other to effectively increase the moving stop position of the second clamp assembly.

[0039] like Figure 2-3 As shown, preferably, a CCD camera 4 is provided on one side of the mounting plate to take photos of the product before grasping it, and the photographic data is fed back to the control center to determine the placement position and direction of the product. Then the control center issues a command, and the variable pitch adjustment component 33 correspondingly adjusts the position of the variable pitch clamp component 3, and the rotating drive components of the reference clamp component 2 and the variable pitch clamp component 3 correspondingly adjust the direction of the pneumatic clamp 226 to perform subsequent clamping actions.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A variable-distance mechanical fixture, characterized in that: Mainly include: A mounting plate, wherein a reference fixture component and a variable pitch fixture component are disposed on the mounting plate; The reference fixture member comprises a first connecting plate fixed to the mounting plate, and a first fixture assembly is arranged on the first connecting plate; The variable pitch clamp component includes a second connecting plate, on which a second clamp assembly is disposed. The second connecting plate is slidably disposed on the mounting plate via a variable pitch adjustment assembly, and the distance between the variable pitch clamp component and the reference clamp component is adjusted via the variable pitch adjustment assembly.

2. A variable-length mechanical clamp according to claim 1, characterized in that: The first clamp assembly includes a connecting support plate, the connecting support plate is rotatably connected to the lower end surface of the first connecting plate through a rotating driving member, a mounting support plate is connected below the connecting support plate, and a pneumatic clamp is arranged on the lower end surface of the mounting support plate; The second clamp assembly has the same structure as the first clamp assembly.

3. A variable-length mechanical clamp according to claim 2, characterized in that: The outer side wall of the pneumatic clamp is provided with a clamping portion protruding outwards for clamping the product.

4. The variable-distance mechanical clamp according to claim 2, characterized in that: The lower end of the mounting support plate is connected to an abutment plate via a lifting cylinder. The abutment plate has an avoidance portion at a position corresponding to the pneumatic clamping jaw, and the pneumatic clamping jaw can move downward from the avoidance portion.

5. The variable-distance mechanical clamp according to claim 4, characterized in that: A guide fitting is provided between the mounting support plate and the abutment plate, and the guide fitting includes a guide column provided on the upper end surface of the abutment plate. A guide sleeve is provided on the mounting support plate, and the guide column is correspondingly inserted into the guide sleeve.

6. The variable-distance mechanical clamp according to claim 5, characterized in that: The guide column is circumferentially sleeved with an elastic member, one end of the elastic member abuts against the mounting support plate, and the other end abuts against the abutting plate.

7. The variable-distance mechanical clamp according to claim 2, characterized in that: The rotary driving member includes a first rotary motor, a first driving gear and a slewing bearing, wherein the first driving gear is disposed at the output end of the first rotary motor, the first driving gear and the slewing bearing are mutually meshed and arranged between the first connecting plate and the connecting support plate, the upper end of the inner ring of the slewing bearing is fixed to the lower end surface of the first connecting plate, the lower end of the outer ring of the slewing bearing is fixed to the upper end surface of the connecting support plate, and the outer ring can rotate relative to the inner ring.

8. The variable-distance mechanical clamp according to claim 1, characterized in that: The variable distance adjustment assembly includes a transverse slide rail and a transverse driving member arranged on the mounting plate, the second connecting plate is slidably arranged on the transverse slide rail through a slider, and the transverse driving member drives the second connecting plate to slide along the transverse slide rail.

9. The variable-distance mechanical clamp according to claim 8, characterized in that: The transverse driving member includes a second rotating motor arranged on one side of the second connecting plate, the output end of the second rotating motor is connected to a second driving gear, the corresponding side of the mounting plate is arranged with a transverse rack, and the second driving gear is meshed with the transverse rack.

10. The variable-length mechanical clamp according to claim 1, characterized in that: A CCD camera is arranged on one side of the mounting plate.

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