A clamp and a control method thereof

Abstract

The present invention provides a clamp and a control method thereof, including: two lifting units, each lifting unit including a lifting unit support seat, an adjusting nut, and an adjusting screw, the adjusting nut is matched with the lifting unit support seat in the circumference, the adjusting screw passes through the lifting unit support seat and the adjusting nut respectively, and the adjusting screw is matched with the adjusting nut in the circumference; a first adjusting unit, the first adjusting unit is matched with the adjusting nut in the circumference, the first adjusting unit includes two adjusting arms, the extension directions of the two adjusting arms are parallel, and the two adjusting arms are matched with the opposite sides of the adjusting nut respectively; a second adjusting unit, the second adjusting unit is matched with the adjusting screw in the circumference. The adjusting unit is matched with the adjusting screw axially; when the adjusting unit moves, the adjusting screw is driven to rotate, and finally the adjusting screw performs a linear feed motion to adjust the height of the workpiece in contact with the adjusting screw.

Description

Technical Field

[0001] The invention relates to the field of tooling fixtures, and in particular to a fixture and a control method thereof. Background Art

[0002] In the process of mechanical manufacturing and processing, castings often need to be clamped and fixed to facilitate milling, drilling, boring, turning and other processing procedures. When non-standard parts need to be processed, the workpiece often needs to be clamped, leveled and tool aligned. However, the current fixtures are not convenient for adjusting the posture and accuracy of the workpiece after clamping, which makes processing and production inconvenient. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a clamp and a control method thereof, so as to solve the problem that the clamp in the prior art is inconvenient to level the workpiece.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a clamp, including: two lifting units, each of which includes a lifting unit support seat, an adjusting nut, and an adjusting screw, the adjusting nut is circumferentially matched with the lifting unit support seat, the adjusting screw passes through the lifting unit support seat and the adjusting nut respectively, and the adjusting screw is circumferentially matched with the adjusting nut; a first adjusting unit, the first adjusting unit is circumferentially matched with the adjusting nut, the first adjusting unit includes two adjusting arms, the extension directions of the two adjusting arms are parallel, and the two adjusting arms are respectively matched with opposite sides of the adjusting nut; a second adjusting unit, the second adjusting unit is circumferentially matched with the adjusting screw.

[0005] Optionally, one end of the second adjusting unit cooperates with the circumference of the adjusting screw of one of the lifting units, and the other end of the second adjusting unit cooperates with the circumference of the adjusting screw of the other lifting unit.

[0006] Optionally, the direction of the line between the two lifting units is defined as the first direction, and the extension direction of the second adjustment unit is defined as the second direction, the second direction is tangent to the adjustment screws of the two lifting units respectively, and the second direction is parallel to the first direction.

[0007] Optionally, the clamp further includes a third adjusting unit, the third adjusting unit cooperates with the second adjusting unit, and a circumference of the third unit is tangent to the second direction.

[0008] Optionally, the adjusting nut includes a screw hole for cooperating with the adjusting screw, and threads are provided on the circumference of the adjusting nut and in the hole of the screw hole. The circumference of the adjusting nut is connected to the lifting unit support seat by threads, and the adjusting screw is connected to the screw hole of the adjusting nut by threads.

[0009] Optionally, a first gear is provided at one end of the adjusting nut close to the first adjusting unit, a second gear is provided at one end of the adjusting screw close to the second adjusting unit, the adjusting nut is meshed with the first adjusting unit via gears, and the adjusting screw is also meshed with the second adjusting unit via gears.

[0010] Optionally, the first adjusting unit further includes a moving arm, wherein the moving arm is respectively connected to the two adjusting arms, and an extending direction of the moving arm is respectively parallel to an extending direction of the two adjusting arms.

[0011] Optionally, the clamp further includes a fourth adjusting unit and a fifth adjusting unit, wherein the fourth adjusting unit and the fifth adjusting unit are respectively arranged on both sides of the moving arm, and the circumference of the fourth adjusting unit and the circumference of the fifth adjusting unit are respectively tangent to the extension direction of the moving arm.

[0012] Optionally, the fourth adjustment unit adjustment shaft, the fourth gear and the fourth adjustment unit connecting plate, the fourth adjustment unit adjustment shaft is rotatably connected to the fourth adjustment unit connecting plate, and the fourth adjustment unit adjustment shaft is connected to the fourth gear; the fifth adjustment unit includes a fifth adjustment unit support seat, a fifth adjustment unit screw and a fifth gear, the fifth adjustment unit support seat is rotatably connected to the fifth adjustment unit screw, and the fifth adjustment unit screw is rotatably connected to the fifth gear.

[0013] A clamp control method, comprising: providing at least the clamp described above; rotating the adjusting nuts of at least two of the clamps in the same direction, so that the adjusting screws of at least two of the clamps move in the same direction along their own axis directions; rotating the adjusting screws of at least two of the clamps in the same direction, so that the adjusting screws of at least two of the clamps move in the same direction along their own axis directions; respectively adjusting the adjusting nuts of two adjacent clamps in opposite directions, so that the adjusting screws of two adjacent clamps move in opposite directions along their own axis directions; respectively adjusting the adjusting screws of two adjacent clamps in opposite directions, so that the adjusting screws of two adjacent clamps move in opposite directions along their own axis directions.

[0014] As described above, the clamp and the control method thereof of the present invention have the following beneficial effects:

[0015] When the first adjusting unit moves, it drives the adjusting nut to rotate. When the second adjusting unit moves, it drives the adjusting screw to rotate. Then, by adjusting the movement of the first adjusting unit or the second adjusting unit, the adjusting nut or the adjusting screw is driven to move, and finally the adjusting screw makes a linear feed motion to adjust the height of the workpiece in contact with the adjusting screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It shows the motion relationship diagram of the lifting units lifting in the same direction.

[0017] Figure 2 It shows the motion relationship diagram of the lifting unit lifting in reverse direction.

[0018] Figure 3 Shown is a schematic diagram of the structure of the second adjustment unit.

[0019] Figure 4 The display is a schematic diagram of the lifting unit structure.

[0020] Figure 5 Shown is a schematic diagram of the structure of the third adjustment unit.

[0021] Figure 6 Shown is a schematic diagram of the structure of the fourth adjustment unit.

[0022] Figure 7 Shown is a schematic diagram of the structure of the fifth adjustment unit.

[0023] Figure 8 Shown is a schematic diagram of the structure of the first adjustment unit.

[0024] Part Number Description

[0025] 2 Second adjustment unit

[0026] 20 Second adjustment unit adjustment lever

[0027] 21 Second adjustment unit mounting seat

[0028] 22 First rack

[0029] 23 Second rack

[0030] 31 Lifting unit support seat

[0031] 32 Adjusting nut

[0032] 33 Adjusting screw

[0033] 34 First Gear

[0034] 35 Second gear

[0035] 4 Third adjustment unit

[0036] 41 Third adjustment axis

[0037] 42 Third gear

[0038] 43 Third adjustment unit connecting plate

[0039] 5 Fourth adjustment unit

[0040] 51 Fourth adjustment unit adjustment shaft

[0041] 52 Fourth Gear

[0042] 53 Fourth adjustment unit connecting plate

[0043] 6 Fifth adjustment unit

[0044] 61 Fifth adjustment unit support seat

[0045] 62 Fifth adjustment unit screw

[0046] 63 Fifth Gear

[0047] 7 First adjustment unit

[0048] 71 Third rack

[0049] 72 Adjustment arm

[0050] 73 Sports Arm

[0051] 74 Fourth rack

[0052] 75 Fifth rack DETAILED DESCRIPTION

[0053] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0054] See also Figures 1 to 8It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than drawing according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0055] See also Figure 1 , Figure 2 and Figure 4The present invention provides a clamp, including: a lifting unit, the lifting unit includes a lifting unit support seat 31, an adjusting nut 32, and an adjusting screw 33. The circumference of the adjusting nut 32 cooperates with the lifting unit support seat 31. When the adjusting nut 32 rotates, the adjusting nut 32 moves relative to the lifting unit support seat 31 along its own axial direction. This relative motion is a linear motion, thereby driving the adjusting screw 33 that cooperates with the adjusting nut 32 to make a linear motion. The adjusting screw 33 passes through the lifting unit support seat 31 and the adjusting nut 32 respectively, and the circumference of the adjusting screw 33 cooperates with the adjusting nut 32. When the adjusting screw 33 rotates, it can drive the adjusting screw The rod 33 and the adjusting nut 32 move relative to each other, and then the adjusting screw 33 moves linearly along its own axis; the first adjusting unit 7, the first adjusting unit 7 is circumferentially matched with the adjusting nut 32; the second adjusting unit 2, the second adjusting unit 2 is circumferentially matched with the adjusting screw 33, when the first adjusting unit 7 moves, the adjusting nut 32 is driven to rotate, and when the second adjusting unit 2 moves, the adjusting screw 33 is driven to rotate, and then by adjusting the movement of the first adjusting unit 7 or the second adjusting unit 2, the adjusting nut 32 or the adjusting screw 33 is driven to move, and finally the adjusting screw 33 makes a linear feed motion to adjust the height of the workpiece in contact with the adjusting screw 33. In order to facilitate the adjustment of the height and levelness of the workpiece, the clamp includes two lifting units, and the first adjustment unit 7 includes two adjustment arms 72. The extension directions of the two adjustment arms 72 are parallel, and the two adjustment arms 72 are respectively matched with the opposite sides of the adjusting nut 32. When the first adjustment unit 7 moves along the extension direction of the adjustment unit 72, the first adjustment unit 7 drives the two lifting units to rotate in the opposite direction, so that one of the lifting units is raised or lowered, and the other lifting unit is lowered or raised.

[0056] In the specific implementation process,

[0057] See also Figure 2 and Figure 3The clamp includes two lifting units, one end of the second adjusting unit 2 is circumferentially matched with the adjusting screw 33 of one of the lifting units, and the other end of the second adjusting unit 2 is circumferentially matched with the adjusting screw 33 of the other lifting unit. Specifically, the direction of the line between the two lifting units is defined as the first direction, and the extending direction of the second adjusting unit 2 is defined as the second direction. The second directions are tangent to the adjusting screws of the two lifting units respectively, and the second direction is parallel to the first direction. When the second adjusting unit 2 moves, the two ends of the second adjusting unit 2 move, and then move relative to the adjusting screws 33 of the two lifting units respectively. The rotation directions of the adjusting screws 33 in the two lifting units are the same, and then the feeding directions of the two adjusting screws are the same, thereby completing the adjustment of the horizontality of the workpiece. Specifically, the second adjusting unit includes a second adjusting unit adjusting rod 20, a second adjusting unit mounting seat 21, a first rack 22 and a second rack 23. The second adjusting unit mounting seat 21 is fixed on the clamp base. The two ends of the second adjusting unit adjusting rod 20 respectively pass through the second adjusting unit mounting seats 21 arranged at both ends thereof. The two ends of the second adjusting unit adjusting rod 20 are respectively provided with a first rack 22 for adjusting the lifting unit, and the first racks 22 at both ends of the second adjusting unit adjusting rod 20 are respectively arranged on the same side of the second adjusting unit adjusting rod 20. A second rack 23 is also provided on the second adjusting unit adjusting rod 20, and the second rack 23 cooperates with the third adjusting unit 4 for adjusting the second adjusting unit 2.

[0058] See also Figure 2 and Figure 5 In order to facilitate the adjustment of the movement of the second adjustment unit 2, the clamp further includes a third adjustment unit 4, the third adjustment unit 4 cooperates with the second adjustment unit 2, and the circumference of the third unit 4 is tangent to the second direction (i.e., the extension direction of the second adjustment unit). When the third unit 4 is rotated, the second adjustment unit 2 moves along the plane where the second direction is located, and then the second unit 2 drives the lifting unit to rotate. In the specific implementation process, the third adjustment unit 4 includes a third adjustment shaft 41, a third gear 42 and a third adjustment unit connecting plate 43. The third adjustment unit connecting plate 43 can be connected to the clamp base. The third adjustment shaft 41 and the third adjustment unit connecting plate 43 are rotatably connected through a hole / shaft, and a third gear 42 is provided on the third adjustment shaft 41. Rotating the third adjustment shaft 41 can drive the third gear 42 to rotate, thereby realizing the adjustment and control of the second adjustment unit 2 by the third adjustment unit 4. In the implementation process, a scale can be set at the joint of the third adjustment unit 4 and the box body 1 to control the rotation accuracy of the third adjustment unit 4.

[0059] See also Figure 4The adjusting nut 32 includes a screw hole for matching the adjusting screw 33. The adjusting nut 32 is provided with threads in the circumference and in the screw hole. The adjusting nut 32 is connected to the lifting unit support seat 31 in the circumference by threads, and the adjusting screw 33 is connected to the inner hole of the adjusting nut 32 by threads. That is, in actual use, when the adjusting nut 32 is rotated, the adjusting nut 32 is threadedly matched with the lifting unit support seat 31, and the adjusting nut 32 can make a feeding motion relative to the lifting unit support seat 31. When the adjusting screw 33 is rotated, the adjusting screw 33 is threadedly matched with the adjusting nut 32, and the adjusting screw 33 can make a feeding motion relative to the adjusting nut 32, thereby realizing the feeding motion of the top of the adjusting screw and achieving the purpose of adjusting the relative position of the workpiece.

[0060] In the specific implementation process, the first gear 34 is provided at the end of the adjusting nut 32 close to the first adjusting unit 7, and the second gear 35 is provided at the end of the adjusting screw 33 close to the second adjusting unit 2. The adjusting nut 32 is meshed with the first adjusting unit 7 through gears, and the adjusting screw 33 is also meshed with the second adjusting unit 2 through gears. The adjusting nut 32 is rotated by the first adjusting unit 7, and the adjusting screw 33 is rotated by the second adjusting unit 2 to realize the feeding movement of the top of the adjusting screw 33, thereby achieving the purpose of adjusting the relative position of the workpiece.

[0061] In order to facilitate the control of the movement of the first adjusting unit 7, the first adjusting unit 7 also includes a moving arm 73, and the moving arm 73 is respectively connected to the two adjusting arms 72, and the extension direction of the moving arm 73 is parallel to the extension direction of the two adjusting arms. Driving the moving arm 73 to make linear motion can simultaneously drive the two adjusting arms 72 to move, thereby improving the control accuracy and ensuring the adjustment synchronization of the lifting unit.

[0062] To facilitate the control of the moving arm 73, the clamp also includes a fourth adjusting unit 5 and a fifth adjusting unit 6, which are respectively arranged on both sides of the moving arm 73, and the circumferential directions of the fourth adjusting unit 5 and the fifth adjusting unit 6 are respectively tangent to the extension direction of the moving arm 73. The linear feed motion of the first adjusting unit 7 is achieved by adjusting the fourth adjusting unit 5 or the fifth adjusting unit 6, thereby ensuring the linearity and accuracy of the motion of the first adjusting unit 7. In the specific implementation process, a third rack 71 is provided at one end of the adjusting arm 72 that cooperates with the lifting unit, and a fourth rack 74 and a fifth rack 75 are respectively provided at the positions of the moving arm 73 corresponding to the fourth adjusting unit 5 and the fifth adjusting unit 6. The movement of the moving arm 73 is achieved by rotating the fourth adjusting unit 5 or the fifth adjusting unit 6 respectively, thereby driving the fourth adjusting unit 5 to cooperate with the fourth rack 74, or driving the fifth adjusting unit 6 to cooperate with the fifth rack 75. Specifically, please refer to Figure 6 and Figure 7 The fourth adjustment unit 5 includes a fourth adjustment unit adjustment shaft 51, a fourth gear 52 and a fourth adjustment unit connection plate 53. The fourth adjustment unit connection plate 53 is arranged on the fixture base. The fourth adjustment unit adjustment shaft 51 and the fourth adjustment unit connection plate 53 can be rotatably connected through the cooperation of holes or shafts, and the fourth adjustment unit adjustment shaft 51 is provided with a fourth gear 52. The fifth adjustment unit 6 includes a fifth adjustment unit support seat 61, a fifth adjustment unit screw rod 62 and a fifth gear 63. The fifth adjustment unit support seat 61 is arranged on the fixture base. The fifth adjustment unit support seat 61 and the fifth adjustment unit screw rod 62 are rotatably connected through the cooperation of screw holes, and the fifth adjustment unit screw rod 62 is provided with a fifth gear 63. During the adjustment process, the fourth gear 52 cooperates with the fourth rack 74, the fifth gear 63 cooperates with the fifth rack 75, and the fourth adjustment unit adjustment shaft 51 or the fifth adjustment unit screw 62 drives the fourth gear 52 to cooperate with the fourth rack 74 and drives the fifth gear 63 to cooperate with the fifth rack 75 by rotating, thereby achieving the purpose of driving the first adjustment unit 7 to move by adjusting the fourth adjustment unit adjustment shaft 51 or the fifth adjustment unit screw 62.

[0063] See also Figure 1 and Figure 2 The present invention also provides a clamp control method, comprising:

[0064] Provide at least two lifting units. In order to maintain the horizontality of the workpiece, two lifting units are used in this implementation process;

[0065] The adjusting nuts 32 of the two clamps are rotated in the same direction. The adjusting nuts 32 cooperate with the adjusting screws 33. When the adjusting nuts 32 rotate, the adjusting screws 33 can be driven to rotate relative to the adjusting nuts 32. The adjusting screws 33 of the two clamps move in the same direction along their own axis directions, thereby achieving synchronous lifting of the two lifting units.

[0066] The adjusting screws 33 of the two clamps are rotated in the same direction, and the adjusting nut 32 cooperates with the adjusting screw 33. When the adjusting screw 33 rotates, the adjusting screw 33 can be driven to rotate relative to the adjusting nut 32, so that the adjusting screws 33 of the two clamps move in the same direction along their own axis directions, thereby realizing the synchronous lifting of the two lifting units;

[0067] Similarly, by rotating the adjusting nuts 32 of two adjacent clamps in opposite directions, the adjusting screws 33 of the two adjacent clamps move in opposite directions along their own axes, so that one of the lifting units is raised or lowered while the other lifting unit is lowered or raised; by rotating the adjusting screws 33 of two adjacent clamps in opposite directions, the adjusting screws 33 of the two adjacent clamps move in opposite directions along their own axes, so that one of the lifting units is raised or lowered while the other lifting unit is lowered or raised.

[0068] In the specific implementation process, please refer to Figure 1 When the fourth adjusting unit 5 or the fifth adjusting unit 6 rotates, it can drive the first adjusting unit 7 to generate a feeding motion. The first adjusting unit 7 cooperates with the opposite sides of the adjusting nuts 32 of the two lifting units. When the first adjusting unit 7 is feeding, the opposite sides of the two adjusting nuts 32 move relative to each other in opposite directions. When the two adjusting nuts 32 drive the adjusting screws 33 to move, one of the adjusting screws 33 is raised or lowered, and the other adjusting screw 33 is lowered or raised.

[0069] Please refer to 2. When the third adjusting unit 4 rotates, the third adjusting unit 4 can cooperate with the second adjusting unit 2, and then the two ends of the second adjusting unit 2 are respectively cooperated with the two adjusting screws 32. Since the extension direction of the second adjusting unit 2 is parallel to the connection line position relationship between the two lifting units, the second adjusting unit 2 can drive the two lifting units to move in the same direction, so that the lifting units can be raised and lowered at the same time.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A clamp, characterized in that: include: Two lifting units, each of which comprises a lifting unit support seat, an adjusting nut, and an adjusting screw, wherein the adjusting nut is matched with the lifting unit support seat in a circumferential direction, the adjusting screw passes through the lifting unit support seat and the adjusting nut respectively, and the adjusting screw is matched with the adjusting nut in a circumferential direction; A first adjusting unit, the first adjusting unit is matched with the adjusting nut in the circumferential direction, the first adjusting unit comprises two adjusting arms, the extension directions of the two adjusting arms are parallel, and the two adjusting arms are matched with opposite sides of the adjusting nut respectively; a second adjusting unit, the second adjusting unit being circumferentially matched with the adjusting screw; Wherein, one end of the second adjusting unit cooperates with the circumference of the adjusting screw of one of the lifting units, and the other end of the second adjusting unit cooperates with the circumference of the adjusting screw of the other lifting unit; The direction of the line between the two lifting units is defined as the first direction, and the extending direction of the second adjusting unit is defined as the second direction. The second direction is tangent to the adjusting screws of the two lifting units respectively, and the second direction is parallel to the first direction. Wherein, the clamp further comprises a third adjusting unit, the third adjusting unit cooperates with the second adjusting unit, and the circumference of the third adjusting unit is tangent to the second direction; The adjusting nut includes a screw hole for matching the adjusting screw, the adjusting nut is provided with threads on its circumference and in its screw hole, the adjusting nut is connected to the lifting unit support seat on its circumference by threads, and the adjusting screw is connected to the screw hole of the adjusting nut by threads; Among them, a first gear is provided at one end of the adjusting nut close to the first adjusting unit, and a second gear is provided at one end of the adjusting screw close to the second adjusting unit. The adjusting nut is meshed with the first adjusting unit through gears, and the adjusting screw is also meshed with the second adjusting unit through gears.

2. The clamp according to claim 1, characterized in that: The first adjusting unit further includes a moving arm, wherein the moving arm is connected to the two adjusting arms respectively, and an extending direction of the moving arm is parallel to an extending direction of the two adjusting arms respectively.

3. The clamp according to claim 2, characterized in that: The clamp further includes a fourth adjusting unit and a fifth adjusting unit, which are respectively arranged on both sides of the moving arm, and the circumference of the fourth adjusting unit and the circumference of the fifth adjusting unit are respectively tangent to the extension direction of the moving arm.

4. The clamp according to claim 3, characterized in that: The fourth adjustment unit includes an adjustment shaft, a fourth gear and a fourth adjustment unit connecting plate, the fourth adjustment unit adjustment shaft is rotatably connected to the fourth adjustment unit connecting plate, and the fourth adjustment unit adjustment shaft is provided with a fourth gear; the fifth adjustment unit includes a fifth adjustment unit support seat, a fifth adjustment unit screw and a fifth gear, the fifth adjustment unit support seat is rotatably connected to the fifth adjustment unit screw through a screw hole, and the fifth adjustment unit screw is provided with a fifth gear.

5. A clamp control method, characterized in that: include: Providing at least two clamps according to any one of claims 1 to 4; The adjusting nuts of at least two of the clamps are rotated in the same direction, and the adjusting screws corresponding to at least two of the clamps move in the same direction along their own axis directions; Rotate the adjusting screws of at least two of the clamps in the same direction, so that the adjusting screws corresponding to at least two of the clamps move in the same direction along their own axis directions; The adjusting nuts of two adjacent clamps are adjusted in opposite directions respectively, and the adjusting screws corresponding to the two adjacent clamps move in opposite directions along their own axis directions; The adjusting screws of two adjacent clamps are respectively adjusted in opposite directions, and the adjusting screws corresponding to the two adjacent clamps move in opposite directions along their own axis directions.

Images