Clamping jig

Abstract

The utility model relates to the technical field of clamping jigs, and provides a clamping jig which comprises a base, a supporting column is arranged on the base, a containing disc is arranged on the top of the supporting column, and a plurality of clamping assemblies used for clamping circuit boards are arranged on the containing disc. The adjusting mechanism comprises a sliding screw rod, a sliding cylinder, a first bevel gear and a control assembly, the sliding screw rod is arranged in the supporting column, the first bevel gear is arranged at the end, close to the bottom of the supporting column, of the sliding screw rod, and the sliding cylinder is arranged at the end, away from the bottom of the supporting column, of the sliding screw rod and is in threaded connection with the sliding screw rod; the clamping assembly is in linkage with the sliding cylinder through a fixing mechanism, and the first bevel gear and the clamping assembly are both in linkage with the control assembly. By means of the technical scheme, the problems that in the prior art, when a worker needs to clamp circuit boards of different models, the technical requirement for the worker is too high, and the working efficiency of the worker is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and specifically to a clamping fixture. Background Art

[0002] In the manufacturing process of circuit boards, fixtures are used to fix and clamp circuit boards for drilling, welding, testing and other processing techniques. Through precise clamping, fixtures can ensure the stability and accuracy of circuit boards during processing, thereby avoiding processing errors caused by vibration or displacement. In addition, fixtures can also help workers process circuit boards more efficiently, improve production efficiency and ensure processing quality.

[0003] The existing clamping fixture mainly includes a base plate, a cylinder is fixed on the base plate, and a loading plate is fixed above the cylinder through a supporting column, a hollow tube is installed at the lower end of the loading plate, the movable end of the cylinder is located in the inner cavity of the hollow tube and is sealed with the hollow tube through an elastic sealing gasket provided on the outer wall of the cylinder, a blocking ring is fixed to the periphery of the cylinder, and two groups of ring bodies are symmetrically provided on the periphery of the blocking ring, and the two groups of ring bodies are fixed together through a plurality of groups of connecting columns, the lower end of the lower ring body is fixed to the base plate, a plurality of groups of vertical plates with concave surfaces are movably provided between the ring body and the blocking ring, and blocks with flow channels are installed on the upper ends of the plurality of vertical plates, the plurality of blocks are connected to the hollow tube through a hose, elastic clamps are installed on the plurality of blocks for clamping and fixing objects of different shapes, and positioning components are installed on the plurality of vertical plates for making them stable and not prone to movement.

[0004] The applicant believes that the above technology has the following technical problems: the clamping of the device relies on cylinder drive. When the staff needs to clamp circuit boards of different models, the inspectors need to find and adjust the pressure regulating valve connecting the cylinder and the air supply source, increase or decrease the cylinder pressure as needed, and make gradual adjustments. Frontline inspectors usually do not have such technology, and the technical requirements for inspectors are too high, which reduces the efficiency of the staff's work. Utility Model Content

[0005] The utility model provides a clamping fixture, which solves the problem in the prior art that when workers need to clamp circuit boards of different models, the technical requirements on the workers are too high, which reduces the work efficiency of the workers.

[0006] The technical solution of the utility model is as follows: a clamping fixture comprises a base, a support column is provided on the base, a placement plate is provided on the top of the support column, and a plurality of clamping components for clamping circuit boards are provided on the placement plate, characterized in that an adjustment mechanism is provided in the support column, the adjustment mechanism comprises a sliding screw, a sliding cylinder, a first bevel gear, and a control component, the sliding screw is arranged inside the support column, and the first bevel gear is arranged at one end of the sliding screw close to the bottom of the support column, the sliding cylinder is arranged at one end of the sliding screw away from the bottom of the support column and is threadedly connected to the sliding screw, the clamping component is linked with the sliding cylinder through a fixing mechanism, and the first bevel gear and the clamping component are both linked with the control component.

[0007] Furthermore, the placement plate is provided with a plurality of clamping grooves, the number of the clamping grooves being at least four, and the four clamping grooves are all circumferentially arranged with the placement plate as the center, the clamping assembly is arranged in the clamping groove, the clamping assembly comprises a first clamping block, a second clamping block, and a connecting rod, the first clamping block is arranged inside the clamping groove and is slidably connected to the inner wall of the clamping groove, the second clamping block is arranged on the side of the first clamping block close to the support column, the connecting rod is arranged at the bottom of the first clamping block, and one end of the connecting rod is rotatably connected to the bottom of the first clamping block through a fixing mechanism, and the other end of the connecting rod is linked to the adjusting mechanism.

[0008] Furthermore, the first clamping block is fixedly connected to the second clamping block via a plurality of elastic members, and a side of the second clamping block away from the first clamping block is provided with anti-slip patterns.

[0009] Furthermore, guide grooves are provided on both sides of the clamping groove, and guide blocks are provided on both sides of the first clamping block, and the guide blocks are slidably connected to the inner wall of the guide groove.

[0010] Furthermore, a plurality of rotation grooves are provided at the bottom of the guide groove, balls are provided in the rotation grooves, and the guide block is slidably connected to the balls.

[0011] Furthermore, the top of the placement plate is rotatably connected to a placement table via a rotation shaft.

[0012] Furthermore, the sliding cylinder is rotatably connected to the other end of the connecting rod through a fixing mechanism, a connecting cylinder is provided on the side of the support column, the control component is arranged in the connecting cylinder, the control component includes a second bevel gear and a rotating shaft, the second bevel gear is meshed with the first bevel gear, the rotating shaft is arranged on the side of the second bevel gear away from the first bevel gear, and the end of the rotating shaft away from the second bevel gear passes through the side of the connecting cylinder and extends to the outside of the connecting cylinder.

[0013] Furthermore, one end of the rotating shaft away from the second bevel gear is fixedly connected to a rotating disk, the rotating disk is provided with a handle, and the handle is provided with a rubber sleeve.

[0014] Furthermore, a limit block is provided at one end of the sliding screw away from the sliding groove.

[0015] Furthermore, a locking screw is provided at the top of the connecting tube, the bottom of the locking screw is in contact with the rotating shaft, the top of the locking screw is fixedly connected to a rotating block, and the rotating block is provided with anti-slip patterns.

[0016] The working principle and beneficial effects of the utility model are:

[0017] The utility model provides an adjusting mechanism and a clamping assembly, and when a staff member needs to clamp a circuit board, he first holds the handle and rotates it, and the handle drives the second bevel gear to rotate through the rotating shaft, and the second bevel gear drives the sliding screw to rotate through the first bevel gear, and the rotation of the sliding screw drives the sliding cylinder to move downward, and the sliding cylinder drives the first clamping block to move in the direction of clamping the circuit board through the connecting rod, so as to clamp a circuit board of a rectangular or circular structure. When clamping circuit boards of different models, only the handle needs to be rotated to clamp circuit boards of different models, which has low technical requirements for the staff, saves costs, and improves the work efficiency of the staff. The utility model can clamp circuit boards of different models by rotating the handle, and the operation is convenient. At the same time, the staff rotates the handle to clamp the circuit board, and the clamping force can be flexibly adjusted, which is manipulable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the support column, the connecting tube, the adjustment mechanism and the clamping assembly in this embodiment;

[0022] Figure 4 It is a partial cross-sectional schematic diagram of the support column, the connecting tube, the adjustment mechanism and the clamping assembly in this embodiment;

[0023] Figure 5 It is a partial cross-sectional view of the first clamping block and the placement plate in this embodiment.

[0024] In the figure: 1. base; 101. support column; 102. reinforcing rib; 103. placement plate; 104. clamping groove; 1041. guide groove; 1042. guide block; 1043. rotating groove; 1044. ball; 105. first clamping block; 106. second clamping block; 107. connecting rod; 108. elastic member; 109. placement table; 2. sliding screw; 201. sliding cylinder; 202. first bevel gear; 203. sliding groove; 204. connecting cylinder; 205. second bevel gear; 206. rotating shaft; 207. turntable; 208. handle; 2081. rubber sleeve; 209. locking screw; 210. rotating block; 211. limiting block; 3. fixing block; 301. pin. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] refer to Figure 1-5 A clamping fixture includes a base 1, a support column 101 is provided on the base 1, a plurality of reinforcing ribs 102 are provided on the top of the support column 101, a placement plate 103 is fixedly connected to the top of each reinforcing rib 102, a placement table 109 is rotatably connected to the top of the placement plate 103 through a rotating shaft, and the placement table 109 can help the staff find a suitable clamping point, four reinforcing ribs 102 can be provided, and the four reinforcing ribs 102 are circumferentially arranged with the support as the center, and the four reinforcing ribs 102 can ensure the stability of the placement plate 103 and save costs, and the placement plate 103 is provided with a plurality of clamping grooves 104 A clamping assembly for clamping a circuit board is provided in each clamping groove 104, and an adjusting mechanism is provided in the support column 101. The adjusting mechanism includes a sliding screw 2, a sliding cylinder 201, a first bevel gear 202, and a control assembly. The sliding screw 2 is arranged inside the support column 101, and the first bevel gear 202 is arranged at one end of the sliding screw 2 close to the bottom of the support column 101, and the sliding cylinder 201 is arranged at one end of the sliding screw 2 away from the bottom of the support column 101 and is threadedly connected. The clamping assembly is linked with the sliding cylinder 201 through a fixing mechanism, and the first bevel gear 202 and the clamping assembly are linked with the control assembly.

[0027] In this embodiment, there are at least four clamping grooves 104, and the four clamping grooves 104 are circumferentially arranged with the placement plate 103 as the center. The circumferential arrangement can ensure that the first clamping block 105 can move simultaneously to clamp the circuit board under the drive of the adjustment mechanism, so as to clamp the circuit board in four directions, thereby improving the stability and firmness of the clamping. The clamping assembly includes a first clamping block 105, a second clamping block 106, and a connecting rod 107. The first clamping block 105 is arranged inside the clamping groove 104 and is slidably connected to the inner wall of the clamping groove 104. The second clamping block 106 is arranged on a side of the first clamping block 105 close to the support column 101;

[0028] In order to prevent the staff from using too much force when clamping the circuit board, which may cause damage to the circuit board, the first clamping block 105 is connected to the second clamping block 106 by a plurality of elastic members 108. When the second clamping block moves toward the circuit board under the drive of the first clamping block 105 and contacts the circuit board, the elastic member 108 will be compressed, thereby providing a buffering effect to prevent the staff from using too much force to cause damage to the circuit board. At the same time, in order to prevent the circuit board from sliding when clamping the circuit board, an anti-slip texture is provided on the end of the second clamping block 106 away from the first clamping block 105. The anti-slip texture It can prevent the circuit board from sliding when the second clamping block 106 clamps the circuit board, thereby improving the firmness of the clamping. The connecting rod 107 is arranged at the bottom of the first clamping block 105, and one end of the connecting rod 107 is rotatably connected to the bottom of the first clamping block 105 through a fixing mechanism, and the other end of the connecting rod 107 is linked to the adjustment mechanism. The fixing mechanism includes two fixing blocks 3 and a pin 301. The two fixing blocks 3 are arranged at the bottom of the first clamping block 105, and the connecting rod 107 is arranged between the two fixing blocks 3. The pin 301 passes through the two fixing blocks 3 and is rotatably connected to the connecting rod 107.

[0029] In this embodiment, the sliding cylinder 201 is rotationally connected to the other end of the connecting rod 107 through a fixing mechanism. The fixing mechanism includes two fixing blocks 3 and a pin shaft 301. The two fixing blocks 3 are arranged on the sides of the sliding cylinder 201. The connecting rod 107 is arranged between the two fixing blocks 3. The pin shaft 301 passes through the two fixing blocks 3 and is rotationally connected to the connecting rod 107.

[0030] The control assembly includes a second bevel gear 205 and a rotating shaft 206. The second bevel gear 205 is meshed with the first bevel gear 202. The rotating shaft 206 is arranged on a side of the second bevel gear 205 away from the first bevel gear 202. The end of the rotating shaft 206 away from the second bevel gear 205 passes through the side of the connecting cylinder 204 and extends to the outside of the connecting cylinder 204. The rotating shaft 206 is rotatably connected to the inner wall of the connecting cylinder 204 through a bearing. The bearing can reduce the friction between the rotating shaft 206 and the inner wall of the connecting cylinder 204, thereby improving the transmission efficiency. In order to facilitate the staff to rotate the rotating shaft 206, a rotating disk 207 is fixedly connected to the side of the rotating shaft 206 away from the second bevel gear 205. A handle 208 is provided on the rotating disk 207. The rotating disk 207 can help the workers The staff can obtain a greater torque, which is convenient for the staff to rotate the rotating shaft 206, and the handle 208 is convenient for the staff to apply force. At the same time, in order to increase the comfort of the staff's grip, a rubber sleeve 2081 is set on the handle 208. The rubber sleeve 2081 can increase the friction, avoid the staff from slipping, and improve the stability of the operation. In order to improve the self-locking property of the control component and the firmness of the clamping, a locking screw 209 is provided on the top of the connecting tube 204. The bottom of the locking screw 209 abuts against the rotating shaft 206, and the top of the locking screw 209 is fixedly connected to the rotating block 210. The rotating block 210 is provided with anti-slip textures. The anti-slip textures can increase the friction of the staff on the rotating block 210, thereby increasing the stability of the grip.

[0031] When the staff needs to clamp the circuit board, the circuit board is placed on the placement table 109, and after rotating to find a suitable clamping point, the handle 208 is held and rotated. The handle 208 will simultaneously drive the turntable 207, the rotating shaft 206, and the first bevel gear 202 to rotate. Since the first bevel gear 202 is meshed with the second bevel gear 205, the second bevel gear 205 and the sliding screw 2 will rotate at the same time under the drive of the first bevel gear 202. Since the sliding cylinder 201 is connected to the first clamping block 105 through the fixing mechanism and the connecting rod 107, the second bevel gear 205 and the sliding screw 2 will rotate at the same time. A clamping block 105 is slidably connected to the inner wall of the clamping groove 104. The clamping groove 104 limits the freedom of the first clamping block 105, so that the first clamping block 105 can only move horizontally in the clamping groove 104. At the same time, the sliding cylinder 201 is limited by the connecting rod 107 to rotate itself, so that the sliding cylinder 201 can move up and down along the sliding screw 2. In order to prevent the staff from moving the sliding cylinder 201 out of the sliding screw 2, a limit block 211 is set at the top of the sliding screw 2. When the sliding screw 2 rotates to drive the sliding cylinder 201 to move downward, the sliding cylinder 20 The first clamping block 105 is moved toward the center of the support column 101 through the connecting rod 107. The first clamping block 105 is slidably connected with the inner wall of the clamping groove 104. In order to improve the stability of the movement of the first clamping block 105, guide grooves 1041 are provided on both sides of the clamping groove 104. Guide blocks 1042 are provided on both sides of the first clamping block 105. The guide blocks 1042 are slidably connected with the guide groove 1041. In order to reduce the friction between the guide blocks 1042 and the bottom of the guide groove 1041, a plurality of rotation grooves 1 are provided at the bottom of the guide groove 1041. 043, a ball 1044 is arranged in the rotating groove 1043, and the sliding connection between the guide block 1042 and the ball 1044 can reduce the friction between the guide block 1042 and the bottom of the guide groove 1041, thereby improving the service life of the clamping assembly. When the second clamping blocks 106 in four directions clamp the circuit board, release the handle 208 and rotate the rotating block 210. The rotating block 210 will drive the locking screw 209 to move in the direction of the rotating shaft 206, thereby fixing the rotating shaft 206, improving the self-locking property of the control assembly and the stability of the clamping.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping fixture, comprising a base (1), wherein the base (1) is provided with a support column (101), a placement plate (103) is provided on the top of the support column (101), and a plurality of clamping components for clamping a circuit board are provided on the placement plate (103), characterized in that: The support column (101) is provided with an adjustment mechanism; The adjusting mechanism comprises a sliding screw (2), a sliding cylinder (201), a first bevel gear (202), and a control assembly. The sliding screw (2) is arranged inside the support column (101), and the first bevel gear (202) is arranged at one end of the sliding screw (2) close to the bottom of the support column (101). The sliding cylinder (201) is arranged at one end of the sliding screw (2) away from the bottom of the support column (101) and is threadedly connected to the sliding screw (2). The clamping assembly is linked to the sliding cylinder (201) via a fixing mechanism, and the first bevel gear (202) and the clamping assembly are both linked to the control assembly.

2. A clamping fixture according to claim 1, characterized in that: The placement plate (103) is provided with a plurality of clamping grooves (104), the number of the clamping grooves (104) being at least four, and the four clamping grooves (104) are all arranged circumferentially with the placement plate (103) as the center, and the clamping assembly is arranged in the clamping groove (104); The clamping assembly comprises a first clamping block (105), a second clamping block (106), and a connecting rod (107); the first clamping block (105) is arranged inside a clamping groove (104) and is slidably connected to the inner wall of the clamping groove (104); the second clamping block (106) is arranged on a side of the first clamping block (105) close to the support column (101); the connecting rod (107) is arranged at the bottom of the first clamping block (105), and one end of the connecting rod (107) is rotatably connected to the bottom of the first clamping block (105) through a fixing mechanism; the other end of the connecting rod (107) is linked to an adjusting mechanism.

3. A clamping fixture according to claim 2, characterized in that: The first clamping block (105) and the second clamping block (106) are fixedly connected via a plurality of elastic members (108); a side of the second clamping block (106) away from the first clamping block (105) is provided with anti-slip patterns.

4. A clamping fixture according to claim 3, characterized in that: Guide grooves (1041) are provided on both sides of the clamping groove (104), guide blocks (1042) are provided on both sides of the first clamping block (105), and the guide blocks (1042) are slidably connected to the inner wall of the guide groove (1041).

5. A clamping fixture according to claim 4, characterized in that: A plurality of rotating grooves (1043) are provided at the bottom of the guide groove (1041), a ball bearing (1044) is provided in the rotating groove (1043), and the guide block (1042) is slidably connected to the ball bearing (1044).

6. A clamping fixture according to claim 5, characterized in that: The bottom of the placement tray (103) is rotatably connected to a placement table (109) via a rotation shaft.

7. A clamping fixture according to claim 2, characterized in that: The sliding cylinder (201) is rotatably connected to the other end of the connecting rod (107) through a fixing mechanism; a connecting cylinder (204) is provided on the side of the support column (101); the control component is arranged in the connecting cylinder (204); the control component comprises a second bevel gear (205) and a rotating shaft (206); the second bevel gear (205) is meshed with the first bevel gear (202); the rotating shaft (206) is arranged on a side of the second bevel gear (205) away from the first bevel gear (202); an end of the rotating shaft (206) away from the second bevel gear (205) passes through the side of the connecting cylinder (204) and extends to the outside of the connecting cylinder (204).

8. A clamping fixture according to claim 7, characterized in that: One end of the rotating shaft (206) away from the second bevel gear (205) is fixedly connected to a rotating disk (207), a handle (208) is provided on the rotating disk (207), and a rubber sleeve (2081) is provided on the handle (208).

9. The clamping fixture according to claim 7, characterized in that: A limiting block (211) is provided at one end of the sliding screw (2) away from the sliding groove (203).

10. The clamping fixture according to claim 7, characterized in that: A locking screw (209) is provided at the top of the connecting tube (204), the bottom of the locking screw (209) is in contact with the rotating shaft (206), the top of the locking screw (209) is fixedly connected to a rotating block (210), and the rotating block (210) is provided with anti-slip patterns.

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