Stamping positioning clamp

Abstract

The utility model discloses a stamping machining positioning clamp, which relates to the technical field of part clamping and comprises a stamping table body, a punched hole is reserved in the middle of the top of the stamping table body, four groups of supporting legs are fixed at the bottom end of the stamping table body close to corners, a plurality of groups of stroke grooves are formed in the top end of the stamping table body, and the stroke grooves are communicated with the punched hole. A clamping plate assembly is movably assembled in each stroke groove. Through rotation of the driving disc and the vortex strip, the four sets of clamping plate assemblies are relatively close to complete the final clamping purpose, the handle lead screw can be operated to drive the movable plate to move twice, positioning and clamping of parts of different specifications and shapes can be met, the application range of the device is wider, meanwhile, the outer frame can synchronously rotate along with the driving disc, and the clamping efficiency is improved. And the outer wall of the stamping table body is lifted, parts during stamping are protected, the situation that people are hurt due to the fact that the parts are crushed and splashed during stamping is prevented, and the safety performance of the device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to part clamping technical field, concretely is a kind of stamping processing positioning fixture. BACKGROUND

[0002] Stamping is the production technology that workpiece is directly subjected to deformation force and deforms in die by the power of conventional or special stamping equipment, so as to obtain product workpiece with certain shape, size and performance, before workpiece stamping, it needs to be clamped and fixed by positioning fixture, to ensure the stamping stability of workpiece.

[0003] The patent document with the publication number CN 219483995 U discloses a stamping processing positioning fixture, which can simultaneously adjust the positions of multiple clamping pieces, facilitate the installation and disassembly of workpieces, improve the stamping efficiency, and adapt to workpieces of different specifications and shapes through the spacing-adjustable clamping pieces, thereby expanding the use range of the fixture

[0004] However, the above technical solution has certain deficiencies, the extrusion block is used to lift the transverse extrusion force on the sliding plate, to drive the four sets of clamping plates to relatively approach to complete the clamping of the workpiece, and because the friction force between the extrusion block and the sliding plate is used to complete the clamping, the working load of the electric telescopic rod is large, thereby accelerating the aging time of the electric push rod, therefore, a stamping processing positioning fixture is proposed. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a stamping processing positioning fixture to solve the technical problems in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stamping processing positioning fixture, comprising a stamping table body, a punching hole is reserved in the middle position of the top of the stamping table body, four sets of supporting legs are fixed at the bottom end of the stamping table body near the corner position, a plurality of stroke grooves are formed in the top end of the stamping table body, a clamping plate assembly is movably arranged in each stroke groove, an outer frame is slidably arranged on the outer wall of the stamping table body, a circular groove is formed in the middle position of the bottom end of the stamping table body and connected with the stroke groove, and a driving disc is rotatably arranged in the circular groove.

[0007] The clamping plate assembly comprises a driven block movably arranged in the stroke groove, a vortex block is fixed at the bottom end of the driven block, a vortex strip is fixed at the top end of the driving disc and engaged with the bottom end of the vortex block, a moving plate is arranged at the top end of the driven block, a motor is arranged below the driving disc, a transmission shaft is arranged at the output end of the motor and connected with the bottom end of the driving disc, a missing groove is formed in the bottom end of the stamping table body near the left and right edges, a lead screw is longitudinally rotatably arranged in the missing groove, and a transmission block is fixedly arranged on the inner wall of the outer frame through bolts on the outer wall of the lead screw.

[0008] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the outer wall of four groups of supporting legs is fixed with bottom plate, the motor is bolted on the top of bottom plate, the bottom end of screw rod is rotatably arranged on the top of bottom plate.

[0009] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the outer wall of transmission shaft is sleeved with two groups of belt driven by screw rod, the outer wall of transmission shaft and screw rod is provided with pulley at belt contact position, the outer wall of screw rod is not provided with thread at pulley contact position.

[0010] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the top of driven block is fixed with fixed plate on one side of moving plate, the fixed plate is threadedly connected with handle screw rod, and one end of handle screw rod is rotatably arranged on the outer wall of moving plate.

[0011] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the bottom end of moving plate is provided with constraint block extending into the top of driven block, and the top of driven block is reserved with constraint groove matched with constraint block.

[0012] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the end face of driven block is provided with elastic cloth strip fixed with the inner wall of stroke groove.

[0013] As a kind of stamping processing positioning fixture preferred technical scheme of the utility model, the four external corners of outer frame are provided with displacement notches, and the displacement notches correspond to the lifting stroke of transmission block on the outer wall of screw rod.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model discloses a kind of stamping processing positioning fixtures, and four groups of clamping plate assemblies are relatively close to complete final clamping purpose by the rotation of driving disc and spiral strip, and handle screw rod can be operated to make moving plate secondary movement, can satisfy the positioning clamping of irregular shape parts, make the range of the device more widely, simultaneously, outer frame can be rotated synchronously with driving disc, and lifting is carried out on the outer wall of stamping platform body, the part during stamping is protected, prevent the situation that part stamping breaks and splashes and injures person, further improve the safety performance of the device. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the perspective view of the utility model;

[0017] Figure 2 It is the expanded structure diagram of stamping platform body and driving disc of the utility model;

[0018] Figure 3 It is the bottom view structure diagram of stamping platform body and driving disc of the utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the stamping table body of this utility model;

[0020] Figure 5 This is a cross-sectional plan view of the stamping table body of this utility model.

[0021] In the diagram: 100, stamping table body; 101, stroke groove; 102, circular groove; 103, missing groove;

[0022] 110. Support leg; 111. Base plate; 120. Outer frame; 130. Clamping plate assembly; 131. Handle lead screw; 132. Driven block; 133. Moving plate; 134. Fixed plate; 135. Elastic strip; 136. Scroll block; 140. Drive disc; 141. Scroll bar; 150. Motor; 160. Lead screw; 161. Transmission block; 170. Transmission shaft. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] A stamping positioning fixture, such as Figures 1 to 5 As shown, the device includes a stamping table 100. A punch hole is reserved at the center of the top of the stamping table 100. Four sets of support legs 110 are fixed at the bottom of the stamping table 100 near the corner. Multiple sets of stroke grooves 101 are opened at the top of the stamping table 100. A clamping plate assembly 130 is movably assembled in each set of stroke grooves 101. An outer frame 120 is slidably fitted on the outer wall of the stamping table 100. A circular groove 102 communicating with the stroke grooves 101 is opened at the center of the bottom of the stamping table 100. An active disk 140 is rotatably installed in the circular groove 102.

[0026] The clamping plate assembly 130 includes a driven block 132 slidably disposed in the stroke groove 101. A volute block 136 is fixed at the bottom end of the driven block 132. A volute bar 141 that meshes with the bottom end of the volute block 136 is fixed at the top end of the driving disc 140. A moving plate 133 is mounted at the top end of the driven block 132. A motor 150 is mounted below the driving disc 140. A transmission shaft 170 connected to the bottom end of the driving disc 140 is provided at the output end of the motor 150. A notch 103 is provided at the bottom end of the stamping table body 100 near the left and right edges. A lead screw 160 is longitudinally rotatably disposed in the notch 103. A transmission block 161 fixed to the inner wall of the outer frame 120 is bolted to the outer wall of the lead screw 160.

[0027] The top of the driven block 132 is fixed with a fixed plate 134 on one side of the movable plate 133, and the fixed plate 134 is threadedly connected with the handle lead screw 131, and one end of the handle lead screw 131 is rotatably arranged on the outer wall of the movable plate 133.

[0028] The outer wall of the transmission shaft 170 is sleeved with two groups of belts driven by the lead screw 160, and the outer walls of the transmission shaft 170 and the lead screw 160 are provided with pulleys at positions in contact with the belts, and the outer wall of the lead screw 160 is not provided with threads at a position in contact with the pulley.

[0029] The part to be clamped is placed on the top of the stamping table body 100, at this time the output end of the motor 150 can drive the transmission shaft 170 to rotate, the driving disc 140 at the top of the transmission shaft 170 rotates synchronously, the vortex blade 141 moves in a circular track, and the vortex tooth block 136 makes the four groups of driven blocks 132 move towards the center in the stroke groove 101, the movable plate 133 contacts the outer wall of the part to complete the positioning and clamping effect, at this time manual force can be applied to the separate handle lead screw 131 to make the movable plate 133 continue to approach the part until it is attached, and the irregular part can be fully clamped, so that the range of application of the clamp is wider;

[0030] When the transmission shaft 170 rotates, the two groups of lead screws 160 also rotate under the drive of the two groups of belts, and the transmission block 161 on the outer wall makes the outer frame 120 rise, which can protect the stroke around the stamping table body 100, prevent the splashing of broken parts during stamping, and improve the safety performance of the clamp.

[0031] Please refer to Figure 2 and Figure 3 , the outer wall of the four groups of supporting legs 110 is fixed with a bottom plate 111, the motor 150 is bolted on the top of the bottom plate 111, and the bottom end of the lead screw 160 is rotatably arranged on the top of the bottom plate 111.

[0032] The motor 150 plays a stable role to ensure that the output end drives the driving disc 140 to rotate and provides stable support to the start of the lead screw 160.

[0033] Please refer to Figure 4 and Figure 5 , the bottom end of the movable plate 133 is provided with a restraint block extending into the top of the driven block 132, and the top of the driven block 132 is provided with a restraint groove matching the restraint block.

[0034] The restraint block can move linearly in the restraint groove, thereby restraining the movable plate 133, so that the movable plate 133 can be stably driven to move when the handle lead screw 131 rotates.

[0035] Please refer to Figure 1 and Figure 5 , the end face of the driven block 132 is provided with an elastic cloth strip 135 fixed with the inner wall of the stroke groove 101.

[0036] The elastic cloth strip 135 is used to seal the stroke groove 101, preventing dust and debris generated by stamping from entering, and ensuring smooth rotation of the vortex strip 141.

[0037] Please refer to Figure 1 and Figure 2 The four outside corners of the outer frame 120 are provided with a gap, and the gap corresponds to the lifting stroke of the transmission block 161 on the outer wall of the lead screw 160.

[0038] Ensure that the lifting of the outer frame 120 is not restricted by the handle lead screw 131, and facilitate manual manual application of external force to the handle lead screw 131 to rotate, achieve the purpose of positioning and clamping of irregular parts.

[0039] In use, the part to be clamped is placed on the top of the stamping table body 100, and at this time the motor 150 output end drives the transmission shaft 170 to rotate, and the driving disc 140 at the top synchronously rotates, and the vortex strip 141 does circular track movement, cooperating with the vortex block 136 to make the four groups of driven blocks 132 in the stroke groove 101 close to the middle, and the moving plate 133 contacts the outer wall of the part to complete the positioning and clamping effect, at this time manual force can be applied to the separate handle lead screw 131 to make the moving plate 133 continue to approach the part until it is attached, and the irregular part can be fully clamped, so that the range of application of the clamp is wider;

[0040] The transmission shaft 170 rotates, and the two groups of lead screws 160 also rotate under the action of the two groups of belts, and the outer frame 120 is lifted through the transmission block 161 on the outer wall, which can protect the stroke of the stamping table body 100, prevent the flying of broken parts during stamping, and improve the safety performance of the clamp. The parts not involved in the device are the same as or can be realized by the existing technology.

[0041] Although the embodiments of the present application have been shown and described, the specific embodiments are only an explanation of the present application, and are not a limitation of the application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A press working positioning fixture comprising a press table body (100), characterized in that: The top of the punching platform body (100) is reserved with a punching hole, the bottom end of the punching platform body (100) is fixed with four groups of supporting legs (110) near the corner position, the top end of the punching platform body (100) is provided with a plurality of stroke grooves (101), each group of the stroke grooves (101) is movably provided with a clamping plate assembly (130), the outer wall of the punching platform body (100) is slidably provided with an outer frame (120), the bottom end of the punching platform body (100) is provided with a circular groove (102) communicated with the stroke grooves (101), and the circular groove (102) is rotatably provided with a driving disc (140). The clamping plate assembly (130) comprises a driven block (132) slidably arranged in the stroke groove (101), the bottom end of the driven block (132) is fixed with a spiral tooth block (136), the top end of the driving disc (140) is fixed with a spiral strip (141) engaged with the bottom end of the spiral tooth block (136), the top end of the driven block (132) is provided with a movable plate (133), the bottom of the driving disc (140) is provided with a motor (150), the output end of the motor (150) is provided with a transmission shaft (170) connected with the bottom end of the driving disc (140), the bottom end of the punching platform body (100) is provided with a missing groove (103) near the left and right edges, and the missing groove (103) is longitudinally rotatably provided with a lead screw (160), and the outer wall of the lead screw (160) is bolted with a transmission block (161) fixed with the inner wall of the outer frame (120).

2. A press working positioning fixture according to claim 1, characterised in that: The outer wall of the four groups of supporting legs (110) is fixed with a bottom plate (111), the motor (150) is bolted on the top of the bottom plate (111), and the bottom end of the lead screw (160) is rotatably arranged on the top of the bottom plate (111).

3. The press processing positioning fixture according to claim 1, characterized in that: The outer wall of the transmission shaft (170) is sleeved with two groups of belts driven by the lead screw (160), the outer walls of the transmission shaft (170) and the lead screw (160) are provided with pulleys at the positions in contact with the belts, and the outer wall of the lead screw (160) is not provided with threads at the position in contact with the pulley.

4. The press processing positioning fixture according to claim 1, characterized in that: The top of the driven block (132) is fixed with a fixed plate (134) on one side of the movable plate (133), the fixed plate (134) is threadedly connected with a handle lead screw (131), and one end of the handle lead screw (131) is rotatably arranged on the outer wall of the movable plate (133).

5. The press processing positioning fixture according to claim 1, characterized in that: The bottom end of the movable plate (133) is provided with a constraint block extending into the top of the driven block (132), and the top of the driven block (132) is reserved with a constraint groove matched with the constraint block.

6. The press processing positioning fixture according to claim 1, characterized in that: The end surface of the driven block (132) is provided with an elastic cloth strip (135) fixed with the inner wall of the stroke groove (101).

7. The press processing positioning fixture according to claim 1, characterized in that: The four external corners of the outer frame (120) are provided with displacement notches, and the displacement notches correspond to the lifting stroke of the transmission block (161) on the outer wall of the lead screw (160).

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