Clamp for flat plate workpiece

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for a flat plate workpiece. The clamp for the flat plate workpiece comprises a clamping jaw and a clamping jaw air cylinder, the clamping jaw air cylinder is used for driving the clamping jaw to clamp the workpiece, the clamping jaw comprises a clamping plate and clamping blocks, the upper surface of the clamping plate is used for being connected with the clamping jaw air cylinder, the lower surface of the clamping plate is used for being connected with the clamping blocks, the number of the clamping blocks is two, and the clamping jaw air cylinder is used for driving the clamping jaw to clamp the workpiece. The two clamping blocks are symmetrically arranged at the two ends of the clamping plate, the clamping plate is used for being attached to the upper surface of a workpiece, the two clamping blocks are used for abutting against the two sides of the workpiece respectively, and the thickness of the clamping blocks is smaller than that of the workpiece. The workpiece clamping device has the following beneficial effects that due to the fact that the thickness of the clamping blocks is smaller than that of the workpieces, when the clamping jaw air cylinders drive the clamping jaws to clamp the workpieces, only one workpiece can be clamped, the phenomenon that multiple workpieces are clamped cannot occur, and the effect of sequentially clamping the workpieces is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and in particular to a clamp for a flat workpiece. Background Art

[0002] In the production process of flat workpieces, the workpieces need to be loaded one by one, and multiple workpieces are stacked in sequence in the vertical direction. When loading, the workpieces are taken away from top to bottom and transferred to the processing equipment for subsequent processing.

[0003] For some relatively thin workpieces, the commonly used clamps cannot clamp them one by one, and it is easy to accidentally clamp multiple workpieces at the same time, affecting subsequent processing procedures. Utility Model Content

[0004] In order to achieve the effect of clamping workpieces in sequence, the present application provides a clamp for flat workpieces.

[0005] The present application provides a clamp for a flat workpiece, which adopts the following technical solution: it includes a clamp and a clamp cylinder, the clamp cylinder is used to drive the clamp to clamp the workpiece, the clamp includes a clamp plate and a clamp block, the upper surface of the clamp plate is used to be connected to the clamp cylinder, the lower surface of the clamp plate is used to be connected to the clamp block, two clamp blocks are provided, and the two clamp blocks are symmetrically arranged at both ends of the clamp plate, the clamp plate is used to fit the upper surface of the workpiece, the two clamp blocks are used to respectively abut against the two sides of the workpiece, and the thickness of the clamp block is less than the thickness of the workpiece.

[0006] By adopting the above technical solution, since the thickness of the clamping block is smaller than the thickness of the workpiece, when the clamping jaw cylinder drives the clamping jaw to clamp the workpiece, only one workpiece will be clamped, and multiple workpieces will not be clamped, thereby achieving the effect of clamping the workpieces in sequence.

[0007] Preferably, it further comprises a frame, wherein two clamping jaws are provided, and the two clamping jaws are symmetrically arranged on both sides of the frame, and the two clamping jaws can be positioned along the length direction of the workpiece to reciprocate and slide closer to or farther from each other.

[0008] By adopting the above technical solution, when two clamps are provided, the process of clamping the workpiece is more stable; the clamp can positionally slide back and forth along the length direction of the workpiece, which can be adapted to workpieces of different lengths and sizes, and further improves the stability of the clamping process to a certain extent.

[0009] Preferably, the clamping plate includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are symmetrically arranged below the clamping cylinder and are detachably connected to the clamping cylinder, and the two clamping blocks are respectively located at the ends of the first clamping plate and the second clamping plate that are far away from each other.

[0010] By adopting the above technical solution, the first clamping plate and the second clamping plate can be detachably connected to the clamping cylinder, so that the first clamping plate and the second clamping plate of different lengths can be replaced to adapt to workpieces of different widths.

[0011] Preferably, the first clamping plate and the second clamping plate have a first mounting plate extending in the vertical direction at their ends close to each other, the first mounting plate is located above the clamping plate, and there are two second mounting plates extending downward in the vertical direction below the clamping jaw cylinder, the first mounting plate and the second mounting plate correspond to each other one by one, and the corresponding first mounting plate and second mounting plate are arranged in close contact with each other, and the first mounting plate is penetrated by connecting bolts, and the connecting bolts are threadedly connected to the second mounting plate after passing through the first mounting plate.

[0012] By adopting the above technical solution, a detachable connection relationship between the clamping plate and the clamping claw cylinder is achieved through the connection relationship between the connecting bolts and the first mounting plate and the second mounting plate.

[0013] Preferably, a fixing block is provided on the side walls of the opposite sides of the two jaw cylinders, and a waist-shaped hole is penetrated through the fixing block in the vertical direction. The length direction of the waist-shaped hole is opened along the length direction of the workpiece, and a fixing bolt is provided on the fixing block. The fixing bolt passes through the waist-shaped hole and is threadedly connected to the frame.

[0014] By adopting the above technical solution, after sliding and adjusting the position of the clamping jaw, the fixing bolt is passed through the waist-shaped hole and connected to the frame thread to achieve the position adjustment of the clamping jaw. The length of the waist-shaped hole is the adjustable stroke range of the clamping jaw.

[0015] Preferably, adjustment blocks are provided on the side walls on opposite sides of the two jaw cylinders, and adjustment grooves for embedding the fixed blocks are opened on the side walls on opposite sides of the two adjustment blocks. The adjustment grooves are opened along the sliding direction of the jaws, and the adjustment grooves penetrate the adjustment blocks along the vertical direction. There are gaps between the side walls on both sides of the adjustment blocks and the side walls on both sides of the adjustment grooves, and the adjustment blocks and the fixed blocks are connected by connecting pieces.

[0016] By adopting the above technical solution, the opening of the adjustment groove can achieve a limiting effect on the adjustment block to a certain extent, and the gap between the two sides of the adjustment block and the groove wall of the adjustment groove reduces the probability of collision and wear between the two during operation.

[0017] Preferably, the connecting member includes a connecting shaft and two adjusting bolts, the two adjusting bolts are respectively located on the outer sides of the groove walls on both sides of the adjusting groove, the adjusting bolts pass through the groove walls of the adjusting groove and are threadedly connected to the fixing block, and the connecting shaft passes through the fixing block and is connected to the bottom of the adjusting groove.

[0018] By adopting the above technical solution, the adjusting bolt is threadedly matched with the adjusting block, and the adjusting bolt is rotated and pressed against the fixed block, so that the adjusting block can be rotated with the connecting shaft as the axis to adjust the horizontality of the clamping jaws.

[0019] Preferably, a sensor is provided on the frame, and the sensor is used to detect whether there is a packaging film on the outside of the workpiece.

[0020] By adopting the above technical solution, the sensor is used to detect whether there is a packaging film on the outside of the workpiece. If a packaging film is detected, clamping will not be performed to avoid the packaging film affecting subsequent processing procedures.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. Since the thickness of the clamp block is smaller than the thickness of the workpiece, when the clamp cylinder drives the clamp to clamp the workpiece, it will only clamp one workpiece instead of clamping multiple workpieces, thus achieving the effect of clamping the workpieces in sequence;

[0023] 2. The clamping jaws can be positioned to slide back and forth along the length direction of the workpiece, which can be adapted to workpieces of different lengths and sizes, and to a certain extent further improve the stability of the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0026] Figure 3 It is a partial structural diagram of this application.

[0027] Explanation of the reference numerals: 1. workpiece; 11. frame; 111. load-bearing horizontal plate; 112. buffer mechanism; 113. buffer support frame; 114. lifting connecting shaft; 115. sensor; 116. connecting block; 117. embedded groove; 12. clamping jaw; 121. clamping plate; 1211. first clamping plate; 1212. second clamping plate; 122. clamping block; 123. first mounting plate; 124. second mounting plate; 125. connecting bolt; 13. fixing block; 131. vertical block; 132. horizontal block; 133. waist-shaped hole; 134. fixing bolt; 14. adjusting block; 141. adjusting groove; 15. connecting piece; 151. connecting shaft; 152. adjusting bolt; 16. clamping jaw cylinder. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] The present application discloses a clamp for a flat workpiece, which is used to achieve the effect of clamping the workpieces in sequence.

[0030] refer to Figure 1 , Figure 2 A clamp for a flat workpiece includes a frame 11, a clamp 12 and a clamp cylinder 16. In the present embodiment, a lifting connecting shaft 114 is arranged above the frame 11. The end of the lifting connecting shaft 114 away from the frame 11 is used to be connected to the lifting mechanism. The frame 11 includes a bearing cross plate 111, a buffer mechanism 112 arranged on the bearing cross plate 111 and a buffer support frame 113 for supporting the buffer structure; the clamp cylinder 16 is used to drive the clamp 12 to clamp the workpiece 1. Two clamps 12 are arranged. The clamp cylinders 16 correspond to the clamps 12 one by one. Two clamp cylinders 16 are also arranged. The two clamp cylinders 16 are symmetrically arranged at both ends of the bearing cross plate 111.

[0031] A sensor 115 is provided on the bearing cross plate 111. The sensor 115 is used to detect whether there is a packaging film on the outside of the workpiece 1. The sensor 115 is set in the middle position of the side wall of one side of the bearing cross plate 111; a connecting block 116 is also provided on one side of one of the clamping claw cylinders 16, and an embedding groove 117 for embedding the proximity sensor 115 is opened on the connecting block 116.

[0032] The height of the clamp is adjusted by using the lifting mechanism so that the clamp 12 is close to the workpiece 1. If the sensor 115 detects the presence of packaging film, etc., it will not clamp the workpiece to prevent the packaging film from affecting the subsequent processing steps. If no packaging film is detected, the clamp 12 is close to the workpiece 1 until the data feedback from the proximity sensor 115 reaches a certain range. In this case, the clamp 12 is considered to be close to the workpiece 1. At this time, the clamp cylinder 16 is driven to clamp the workpiece 1, and then the lifting mechanism is driven to remove and transfer the workpiece 1.

[0033] The clamping jaw 12 includes a clamping plate 121 and a clamping block 122. The upper surface of the clamping plate 121 is used to be connected to the clamping jaw cylinder 16. Specifically, the clamping plate 121 includes a first clamping plate 1211 and a second clamping plate 1212. The first clamping plate 1211 and the second clamping plate 1212 are symmetrically arranged below the clamping jaw cylinder 16. The first clamping plate 1211 and the second clamping plate 1212 are close to each other and have a first mounting plate 123 extending in the vertical direction. The first mounting plate 123 is located above the clamping plate 121. Two second mounting plates 124 extend downward in the vertical direction below the clamping jaw cylinder 16. The first mounting plate 123 and the second mounting plate 124 correspond to each other one by one. The corresponding first mounting plates 123 and the second mounting plates 124 are arranged in a close relationship. The first mounting plate 123 is provided with a connecting bolt 125. The connecting bolt 125 passes through the first mounting plate 123 and is threadedly connected to the second mounting plate 124. In this embodiment, each first mounting plate 123 is provided with two connecting bolts 125.

[0034] The lower surface of the clamping plate 121 is used to be connected to the clamping block 122. Two clamping blocks 122 are provided. The two clamping blocks 122 are symmetrically arranged at both ends of the clamping plate 121. In the present embodiment, the two clamping blocks 122 are respectively located at the ends far away from each other of the first clamping plate 1211 and the second clamping plate 1212. The clamping plate 121 is used to fit against the upper surface of the workpiece 1. The two clamping blocks 122 are used to respectively abut against the two sides of the workpiece 1. The thickness of the clamping block 122 is less than the thickness of the workpiece 1. When the jaw cylinder 16 drives the jaw 12 to clamp the workpiece 1, it will only clamp one workpiece 1, and will not clamp multiple workpieces 1, thereby achieving the effect of clamping the workpieces 1 in sequence.

[0035] Furthermore, the two clamping jaws 12 can be positioned to slide back and forth along the length direction of the workpiece 1 to move closer to or farther from each other, which can be adapted to workpieces 1 of different lengths and sizes, and improves the stability of the clamping process to a certain extent.

[0036] Specifically, refer to Figure 1 , Figure 3 , a fixing block 13 and an adjusting block 14 are provided on the side walls on opposite sides of the two jaw cylinders 16. In the present embodiment, the fixing block 13 is L-shaped, and is formed by vertically connecting a vertical block 131 and a horizontal block 132. An adjusting groove 141 is provided on the side walls on opposite sides of the two adjusting blocks 14. The adjusting groove 141 is provided for the vertical block 131 to be embedded. The adjusting groove 141 is provided along the sliding direction of the jaws 12. The adjusting groove 141 penetrates the adjusting block 14 along the vertical direction. There is a gap between the side walls of the vertical block 131 and the side walls of the adjusting groove 141 respectively. The opening of the adjusting groove 141 realizes the limiting effect on the adjusting block 14 to a certain extent, and the gap between the two sides of the adjusting block 14 and the groove wall of the adjusting groove 141 reduces the probability of collision and wear between the two sides during operation.

[0037] A waist-shaped hole 133 is penetrated through the cross block 132 in the vertical direction, and the length direction of the waist-shaped hole 133 is opened along the length direction of the workpiece 1. A fixing bolt 134 is arranged on the fixed block 13, and the fixing bolt 134 is threadedly connected to the frame 11 after passing through the waist-shaped hole 133, and the head of the fixing bolt 134 abuts against the cross block 132. After the position of the clamping jaw 12 is slidably adjusted, the fixing bolt 134 is passed through the waist-shaped hole 133 and threadedly connected to the frame 11 to realize the position adjustment of the clamping jaw 12. The length of the waist-shaped hole 133 is the adjustable stroke range of the clamping jaw 12.

[0038] The adjusting block 14 and the fixed block 13 are connected via a connecting member 15, which includes a connecting shaft 151 and two adjusting bolts 152. The two adjusting bolts 152 are respectively located on the outer sides of the groove walls on both sides of the adjusting groove 141. The adjusting bolts 152 pass through the groove walls of the adjusting groove 141 and are threadedly connected to the side walls of the horizontal block 132. The connecting shaft 151 passes through the vertical block 131 and is connected to the bottom of the adjusting groove 141. The adjusting bolts 152 are threadedly matched with the adjusting block 14. By rotating the adjusting bolts 152 and pressing against the fixed block 13, the adjusting block 14 can be rotated around the connecting shaft 151 as the axis to adjust the horizontality of the clamping jaw 12.

[0039] The implementation principle of a clamp for a flat workpiece in an embodiment of the present application is as follows: the clamp 12 approaches the workpiece 1 until the data fed back by the proximity sensor 115 reaches a certain range, then it is considered that the clamp 12 is in close contact with the workpiece 1, at this time the clamp cylinder 16 is driven to clamp the workpiece 1, and then the lifting mechanism is driven to take away and transfer the workpiece 1; wherein, the thickness of the clamp block 122 is less than the thickness of the workpiece 1, and when the clamp cylinder 16 drives the clamp 12 to clamp the workpiece 1, only one workpiece 1 will be clamped, and there will be no phenomenon of clamping multiple workpieces 1, thereby achieving the effect of clamping the workpieces 1 in sequence.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A clamp for a flat workpiece, comprising a clamping jaw (12) and a clamping jaw cylinder (16), wherein the clamping jaw cylinder (16) is used to drive the clamping jaw (12) to clamp the workpiece (1), characterized in that: The clamping jaw (12) comprises a clamping plate (121) and a clamping block (122); the upper surface of the clamping plate (121) is used to be connected to the clamping jaw cylinder (16); the lower surface of the clamping plate (121) is used to be connected to the clamping block (122); two clamping blocks (122) are provided, and the two clamping blocks (122) are symmetrically arranged at two ends of the clamping plate (121); the clamping plate (121) is used to be attached to the upper surface of the workpiece (1); the two clamping blocks (122) are used to respectively contact two sides of the workpiece (1); and the thickness of the clamping block (122) is less than the thickness of the workpiece (1).

2. A fixture for a flat workpiece according to claim 1, characterized in that: It also comprises a frame (11), wherein two clamping jaws (12) are provided, and the two clamping jaws (12) are symmetrically arranged on both sides of the frame (11), and the two clamping jaws (12) can be positioned along the length direction of the workpiece (1) to reciprocate and slide towards or away from each other.

3. A fixture for a flat workpiece according to claim 2, characterized in that: The clamping plate (121) comprises a first clamping plate (1211) and a second clamping plate (1212); the first clamping plate (1211) and the second clamping plate (1212) are symmetrically arranged below the clamping claw cylinder (16) and are detachably connected to the clamping claw cylinder (16); the two clamping blocks (122) are respectively located at the ends of the first clamping plate (1211) and the second clamping plate (1212) that are far away from each other.

4. A fixture for a flat workpiece according to claim 3, characterized in that: A first mounting plate (123) is extended in the vertical direction at the ends of the first clamping plate (1211) and the second clamping plate (1212) that are close to each other. The first mounting plate (123) is located above the clamping plate (121). Two second mounting plates (124) are extended downward in the vertical direction below the clamping jaw cylinder (16). The first mounting plate (123) and the second mounting plate (124) correspond to each other one by one. The corresponding first mounting plates (123) and the second mounting plates (124) are arranged in close contact with each other. A connecting bolt (125) is passed through the first mounting plate (123) and is threadedly connected to the second mounting plate (124) after passing through the first mounting plate (123).

5. A fixture for a flat workpiece according to claim 4, characterized in that: A fixing block (13) is provided on the side walls of the two clamping jaw cylinders (16) on opposite sides. A waist-shaped hole (133) is passed through the fixing block (13) in the vertical direction. The length direction of the waist-shaped hole (133) is opened along the length direction of the workpiece (1). A fixing bolt (134) is provided on the fixing block (13). The fixing bolt (134) passes through the waist-shaped hole (133) and is threadedly connected to the frame (11).

6. A fixture for a flat workpiece according to claim 5, characterized in that: An adjustment block (14) is provided on the side walls on opposite sides of the two clamping jaw cylinders (16); an adjustment groove (141) for the fixed block (13) to be embedded is provided on the side walls on opposite sides of the two adjustment blocks (14); the adjustment groove (141) is provided along the sliding direction of the clamping jaws (12); the adjustment groove (141) penetrates the adjustment block (14) along the vertical direction; there is a gap between the side walls on both sides of the adjustment block (14) and the side walls on both sides of the adjustment groove (141); the adjustment block (14) and the fixed block (13) are connected via a connecting piece (15).

7. A fixture for a flat workpiece according to claim 6, characterized in that: The connecting member (15) comprises a connecting shaft (151) and two adjusting bolts (152). The two adjusting bolts (152) are respectively located on the outside of the groove walls on both sides of the adjusting groove (141). The adjusting bolts (152) pass through the groove walls of the adjusting groove (141) and are threadedly connected to the fixing block (13). The connecting shaft (151) passes through the fixing block (13) and is connected to the groove bottom of the adjusting groove (141).

8. A fixture for a flat workpiece according to claim 7, characterized in that: A sensor (115) is provided on the frame (11), and the sensor (115) is used to detect whether there is a packaging film on the outside of the workpiece (1).

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